Windows Analysis Report winlogon.exe

Overview

General Information

Sample Name: winlogon.exe
Analysis ID: 532921
MD5: 629f5bb8b5ee75e90c393ad9d96a1772
SHA1: b09925a7163bef858657a1b39146fe27abb01f99
SHA256: 15637f2d530662c968272c1e6e48ca6a093f0c828edf0cbb5cd32d9af03b3ff5
Tags: AgentTeslaexe
Infos:

Most interesting Screenshot:

Detection

AgentTesla
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Found malware configuration
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Multi AV Scanner detection for submitted file
Yara detected AgentTesla
Yara detected AntiVM3
Tries to steal Mail credentials (via file / registry access)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Sigma detected: Suspicius Add Task From User AppData Temp
Allocates memory in foreign processes
.NET source code contains potential unpacker
Sigma detected: Powershell Defender Exclusion
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Uses schtasks.exe or at.exe to add and modify task schedules
Tries to harvest and steal browser information (history, passwords, etc)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Yara detected Credential Stealer
IP address seen in connection with other malware
Contains long sleeps (>= 3 min)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Sample file is different than original file name gathered from version info
Drops PE files
Detected TCP or UDP traffic on non-standard ports
Binary contains a suspicious time stamp
Uses SMTP (mail sending)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Dropped file seen in connection with other malware
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Classification

AV Detection:

barindex
Found malware configuration
Source: 6.0.RegSvcs.exe.400000.4.unpack Malware Configuration Extractor: Agenttesla {"Exfil Mode": "SMTP", "Username": "m.melendez@stockmeieir.com", "Password": "aU6sb@#1%Efh", "Host": "smtp.stockmeieir.com"}
Multi AV Scanner detection for submitted file
Source: winlogon.exe Virustotal: Detection: 24% Perma Link
Antivirus or Machine Learning detection for unpacked file
Source: 6.0.RegSvcs.exe.400000.4.unpack Avira: Label: TR/Spy.Gen8
Source: 6.0.RegSvcs.exe.400000.3.unpack Avira: Label: TR/Spy.Gen8
Source: 6.0.RegSvcs.exe.400000.2.unpack Avira: Label: TR/Spy.Gen8
Source: 6.2.RegSvcs.exe.400000.0.unpack Avira: Label: TR/Spy.Gen8
Source: 6.0.RegSvcs.exe.400000.0.unpack Avira: Label: TR/Spy.Gen8
Source: 6.0.RegSvcs.exe.400000.1.unpack Avira: Label: TR/Spy.Gen8

Compliance:

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Uses 32bit PE files
Source: winlogon.exe Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE
Source: winlogon.exe Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT

Networking:

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Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Source: Traffic Snort IDS: 2030171 ET TROJAN AgentTesla Exfil Via SMTP 192.168.2.4:49843 -> 208.91.199.224:587
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 208.91.199.224 208.91.199.224
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49843 -> 208.91.199.224:587
Uses SMTP (mail sending)
Source: global traffic TCP traffic: 192.168.2.4:49843 -> 208.91.199.224:587
Source: RegSvcs.exe, 00000006.00000002.929063872.0000000002901000.00000004.00000001.sdmp String found in binary or memory: http://127.0.0.1:HTTP/1.1
Source: RegSvcs.exe, 00000006.00000002.929063872.0000000002901000.00000004.00000001.sdmp String found in binary or memory: http://DynDns.comDynDNS
Source: winlogon.exe, 00000000.00000002.676484155.0000000002CB3000.00000004.00000001.sdmp, winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name
Source: RegSvcs.exe, 00000006.00000002.929285525.0000000002A52000.00000004.00000001.sdmp String found in binary or memory: http://smtp.stockmeieir.com
Source: RegSvcs.exe, 00000006.00000002.929285525.0000000002A52000.00000004.00000001.sdmp String found in binary or memory: http://us2.smtp.mailhostbox.com
Source: RegSvcs.exe, 00000006.00000002.929063872.0000000002901000.00000004.00000001.sdmp String found in binary or memory: http://wwHpow.com
Source: RegSvcs.exe, 00000006.00000002.929225214.0000000002A03000.00000004.00000001.sdmp, RegSvcs.exe, 00000006.00000002.929273138.0000000002A4C000.00000004.00000001.sdmp String found in binary or memory: https://Qr1QL48h5BTOb.com
Source: RegSvcs.exe, 00000006.00000002.929145314.00000000029AC000.00000004.00000001.sdmp String found in binary or memory: https://api.ipify.org%
Source: RegSvcs.exe, 00000006.00000002.929063872.0000000002901000.00000004.00000001.sdmp String found in binary or memory: https://api.ipify.org%GETMozilla/5.0
Source: winlogon.exe, 00000000.00000002.678289324.0000000003BD9000.00000004.00000001.sdmp, RegSvcs.exe, 00000006.00000000.673745105.0000000000402000.00000040.00000001.sdmp, RegSvcs.exe, 00000006.00000000.672598413.0000000000402000.00000040.00000001.sdmp String found in binary or memory: https://www.theonionrouter.com/dist.torproject.org/torbrowser/9.5.3/tor-win32-0.4.3.6.zip
Source: RegSvcs.exe, 00000006.00000002.929063872.0000000002901000.00000004.00000001.sdmp String found in binary or memory: https://www.theonionrouter.com/dist.torproject.org/torbrowser/9.5.3/tor-win32-0.4.3.6.zip%tordir%%ha
Source: unknown DNS traffic detected: queries for: smtp.stockmeieir.com

System Summary:

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.NET source code contains very large array initializations
Source: 6.0.RegSvcs.exe.400000.4.unpack, u003cPrivateImplementationDetailsu003eu007bE3375034u002d8665u002d4EC5u002dB8E3u002d408FACBEC3C8u007d/u0032F7D2690u002dA8FCu002d441Eu002dBAC6u002d826EE4BE1AC3.cs Large array initialization: .cctor: array initializer size 11963
Source: 6.0.RegSvcs.exe.400000.3.unpack, u003cPrivateImplementationDetailsu003eu007bE3375034u002d8665u002d4EC5u002dB8E3u002d408FACBEC3C8u007d/u0032F7D2690u002dA8FCu002d441Eu002dBAC6u002d826EE4BE1AC3.cs Large array initialization: .cctor: array initializer size 11963
Source: 6.0.RegSvcs.exe.400000.2.unpack, u003cPrivateImplementationDetailsu003eu007bE3375034u002d8665u002d4EC5u002dB8E3u002d408FACBEC3C8u007d/u0032F7D2690u002dA8FCu002d441Eu002dBAC6u002d826EE4BE1AC3.cs Large array initialization: .cctor: array initializer size 11963
Source: 6.2.RegSvcs.exe.400000.0.unpack, u003cPrivateImplementationDetailsu003eu007bE3375034u002d8665u002d4EC5u002dB8E3u002d408FACBEC3C8u007d/u0032F7D2690u002dA8FCu002d441Eu002dBAC6u002d826EE4BE1AC3.cs Large array initialization: .cctor: array initializer size 11963
Source: 6.0.RegSvcs.exe.400000.0.unpack, u003cPrivateImplementationDetailsu003eu007bE3375034u002d8665u002d4EC5u002dB8E3u002d408FACBEC3C8u007d/u0032F7D2690u002dA8FCu002d441Eu002dBAC6u002d826EE4BE1AC3.cs Large array initialization: .cctor: array initializer size 11963
Source: 6.0.RegSvcs.exe.400000.1.unpack, u003cPrivateImplementationDetailsu003eu007bE3375034u002d8665u002d4EC5u002dB8E3u002d408FACBEC3C8u007d/u0032F7D2690u002dA8FCu002d441Eu002dBAC6u002d826EE4BE1AC3.cs Large array initialization: .cctor: array initializer size 11963
Uses 32bit PE files
Source: winlogon.exe Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE
Detected potential crypto function
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_00F5C5B4 0_2_00F5C5B4
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_00F5E912 0_2_00F5E912
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_00F5E918 0_2_00F5E918
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_02B94948 0_2_02B94948
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_02B94939 0_2_02B94939
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_02B9E950 0_2_02B9E950
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_02B9E94A 0_2_02B9E94A
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E58068 6_2_00E58068
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E50040 6_2_00E50040
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E55182 6_2_00E55182
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E5AFF8 6_2_00E5AFF8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E52796 6_2_00E52796
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E54F50 6_2_00E54F50
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E5BEC8 6_2_00E5BEC8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E5BE6A 6_2_00E5BE6A
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E5F25F 6_2_00E5F25F
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_04D846A0 6_2_04D846A0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_04D845B0 6_2_04D845B0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_04D8D261 6_2_04D8D261
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF6500 6_2_05DF6500
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF7118 6_2_05DF7118
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF6848 6_2_05DF6848
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05E10040 6_2_05E10040
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05E1EF00 6_2_05E1EF00
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05E1003D 6_2_05E1003D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05E18282 6_2_05E18282
Found potential string decryption / allocating functions
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: String function: 05DFBA98 appears 52 times
Sample file is different than original file name gathered from version info
Source: winlogon.exe, 00000000.00000002.675258722.0000000000846000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameCancellationCallbackIn.exe4 vs winlogon.exe
Source: winlogon.exe, 00000000.00000002.679999581.0000000005D70000.00000004.00020000.sdmp Binary or memory string: OriginalFilenameUI.dllF vs winlogon.exe
Source: winlogon.exe, 00000000.00000002.678289324.0000000003BD9000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameOTmdmZgynuRtgcbWTCLvFYfG.exe4 vs winlogon.exe
Source: winlogon.exe, 00000000.00000002.678289324.0000000003BD9000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameUI.dllF vs winlogon.exe
Source: winlogon.exe, 00000000.00000002.679722660.0000000005290000.00000004.00020000.sdmp Binary or memory string: OriginalFilenameInnerException.dll" vs winlogon.exe
Source: winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameInnerException.dll" vs winlogon.exe
Source: winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameOTmdmZgynuRtgcbWTCLvFYfG.exe4 vs winlogon.exe
Source: winlogon.exe Binary or memory string: OriginalFilenameCancellationCallbackIn.exe4 vs winlogon.exe
Dropped file seen in connection with other malware
Source: Joe Sandbox View Dropped File: C:\Users\user\AppData\Roaming\UlhpAjSuVoTa.exe 15637F2D530662C968272C1E6E48CA6A093F0C828EDF0CBB5CD32D9AF03B3FF5
Source: winlogon.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: UlhpAjSuVoTa.exe.0.dr Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: winlogon.exe Virustotal: Detection: 24%
Source: C:\Users\user\Desktop\winlogon.exe File read: C:\Users\user\Desktop\winlogon.exe Jump to behavior
Source: winlogon.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\winlogon.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: unknown Process created: C:\Users\user\Desktop\winlogon.exe "C:\Users\user\Desktop\winlogon.exe"
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\UlhpAjSuVoTa.exe
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\schtasks.exe C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlhpAjSuVoTa" /XML "C:\Users\user\AppData\Local\Temp\tmpD7F1.tmp
Source: C:\Windows\SysWOW64\schtasks.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\UlhpAjSuVoTa.exe Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\schtasks.exe C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlhpAjSuVoTa" /XML "C:\Users\user\AppData\Local\Temp\tmpD7F1.tmp Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{95E15D0A-66E6-93D9-C53C-76E6219D3341}\InProcServer32 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Users\user\Desktop\winlogon.exe File created: C:\Users\user\AppData\Roaming\UlhpAjSuVoTa.exe Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe File created: C:\Users\user\AppData\Local\Temp\tmpD7F1.tmp Jump to behavior
Source: classification engine Classification label: mal100.troj.spyw.evad.winEXE@9/8@2/2
Source: C:\Users\user\Desktop\winlogon.exe File read: C:\Users\user\Desktop\desktop.ini Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll Jump to behavior
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:5644:120:WilError_01
Source: C:\Users\user\Desktop\winlogon.exe Mutant created: \Sessions\1\BaseNamedObjects\kQBjZXFLomKnbRbGT
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6584:120:WilError_01
Source: 6.0.RegSvcs.exe.400000.4.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 6.0.RegSvcs.exe.400000.4.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 6.0.RegSvcs.exe.400000.3.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 6.0.RegSvcs.exe.400000.3.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 6.0.RegSvcs.exe.400000.2.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 6.0.RegSvcs.exe.400000.2.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe File opened: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorrc.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Source: winlogon.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: winlogon.exe Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Source: winlogon.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Data Obfuscation:

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.NET source code contains potential unpacker
Source: winlogon.exe, GameSettingsWindow.cs .Net Code: CF234052 System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: UlhpAjSuVoTa.exe.0.dr, GameSettingsWindow.cs .Net Code: CF234052 System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: 0.0.winlogon.exe.7d0000.0.unpack, GameSettingsWindow.cs .Net Code: CF234052 System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: 0.2.winlogon.exe.7d0000.0.unpack, GameSettingsWindow.cs .Net Code: CF234052 System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_00F5E318 push esp; iretd 0_2_00F5E319
Source: C:\Users\user\Desktop\winlogon.exe Code function: 0_2_00F5D642 pushad ; ret 0_2_00F5D649
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E59742 push 8BFFFFFFh; retf 6_2_00E59748
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DFED6B pushfd ; ret 6_2_05DFEDB1
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DFECC3 push esp; ret 6_2_05DFECC9
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DFEC7B pushad ; ret 6_2_05DFECC1
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF2188 push edi; retn 0005h 6_2_05DF2192
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF2157 push esi; retn 0005h 6_2_05DF2172
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF2147 push ebp; retn 0005h 6_2_05DF2152
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF210B push edx; retn 0005h 6_2_05DF2112
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF5BF7 pushad ; retn 0005h 6_2_05DF5C02
Binary contains a suspicious time stamp
Source: winlogon.exe Static PE information: 0xE54F68FF [Thu Nov 29 14:58:07 2091 UTC]
Source: initial sample Static PE information: section name: .text entropy: 7.82547153814
Source: initial sample Static PE information: section name: .text entropy: 7.82547153814

Persistence and Installation Behavior:

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Drops PE files
Source: C:\Users\user\Desktop\winlogon.exe File created: C:\Users\user\AppData\Roaming\UlhpAjSuVoTa.exe Jump to dropped file

Boot Survival:

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Uses schtasks.exe or at.exe to add and modify task schedules
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\schtasks.exe C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlhpAjSuVoTa" /XML "C:\Users\user\AppData\Local\Temp\tmpD7F1.tmp

Hooking and other Techniques for Hiding and Protection:

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Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Registry key monitored for changes: HKEY_CURRENT_USER_Classes Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

barindex
Yara detected AntiVM3
Source: Yara match File source: 0.2.winlogon.exe.2bf1b4c.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.676484155.0000000002CB3000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: winlogon.exe PID: 6768, type: MEMORYSTR
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: winlogon.exe, 00000000.00000002.676484155.0000000002CB3000.00000004.00000001.sdmp, winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp Binary or memory string: SBIEDLL.DLL
Source: winlogon.exe, 00000000.00000002.676484155.0000000002CB3000.00000004.00000001.sdmp, winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp Binary or memory string: KERNEL32.DLL.WINE_GET_UNIX_FILE_NAME
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_NetworkAdapterConfiguration
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_BaseBoard
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\winlogon.exe TID: 2460 Thread sleep time: -36574s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe TID: 6912 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe TID: 6344 Thread sleep time: -7378697629483816s >= -30000s Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Contains long sleeps (>= 3 min)
Source: C:\Users\user\Desktop\winlogon.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Window / User API: threadDelayed 6184 Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Window / User API: threadDelayed 2340 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Window / User API: threadDelayed 2210 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Window / User API: threadDelayed 7653 Jump to behavior
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Users\user\Desktop\winlogon.exe Process information queried: ProcessInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Thread delayed: delay time: 36574 Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp Binary or memory string: VMware SVGA IIBAdd-MpPreference -ExclusionPath "
Source: winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp Binary or memory string: InstallPathJC:\PROGRAM FILES\VMWARE\VMWARE TOOLS\
Source: RegSvcs.exe, 00000006.00000002.929777054.0000000005B17000.00000004.00000001.sdmp, RegSvcs.exe, 00000006.00000003.875278823.0000000005B58000.00000004.00000001.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll[
Source: winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp Binary or memory string: vmware
Source: winlogon.exe, 00000000.00000002.676341483.0000000002BD1000.00000004.00000001.sdmp Binary or memory string: VMWAREDSOFTWARE\VMware, Inc.\VMware Tools

Anti Debugging:

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Enables debug privileges
Source: C:\Users\user\Desktop\winlogon.exe Process token adjusted: Debug Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Process token adjusted: Debug Jump to behavior
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_00E50040 LdrInitializeThunk, 6_2_00E50040
Source: C:\Users\user\Desktop\winlogon.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

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Allocates memory in foreign processes
Source: C:\Users\user\Desktop\winlogon.exe Memory allocated: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe base: 400000 protect: page execute and read and write Jump to behavior
Adds a directory exclusion to Windows Defender
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\UlhpAjSuVoTa.exe
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\UlhpAjSuVoTa.exe Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\UlhpAjSuVoTa.exe Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\SysWOW64\schtasks.exe C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlhpAjSuVoTa" /XML "C:\Users\user\AppData\Local\Temp\tmpD7F1.tmp Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Jump to behavior
Source: RegSvcs.exe, 00000006.00000002.928991406.0000000001300000.00000002.00020000.sdmp Binary or memory string: Program Manager
Source: RegSvcs.exe, 00000006.00000002.928991406.0000000001300000.00000002.00020000.sdmp Binary or memory string: Shell_TrayWnd
Source: RegSvcs.exe, 00000006.00000002.928991406.0000000001300000.00000002.00020000.sdmp Binary or memory string: Progman
Source: RegSvcs.exe, 00000006.00000002.928991406.0000000001300000.00000002.00020000.sdmp Binary or memory string: Progmanlock

Language, Device and Operating System Detection:

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Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\winlogon.exe Queries volume information: C:\Users\user\Desktop\winlogon.exe VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.PowerShell.ConsoleHost\v4.0_3.0.0.0__31bf3856ad364e35\Microsoft.PowerShell.ConsoleHost.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management.Automation\v4.0_3.0.0.0__31bf3856ad364e35\System.Management.Automation.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.DirectoryServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.DirectoryServices.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Management.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package00113~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.PowerShell.Security\v4.0_3.0.0.0__31bf3856ad364e35\Microsoft.PowerShell.Security.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package00113~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-GroupPolicy-ClientTools-WOW64-ds-Package~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-AppManagement-AppV-WOW64-Package~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\Microsoft.Management.Infrastructure.Native\v4.0_1.0.0.0__31bf3856ad364e35\Microsoft.Management.Infrastructure.Native.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Modules\AppvClient\Microsoft.AppV.AppVClientPowerShell.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\Microsoft.AppV.AppvClientComConsumer\v4.0_10.0.0.0__31bf3856ad364e35\Microsoft.AppV.AppvClientComConsumer.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\Microsoft.AppV.AppvClientComConsumer\v4.0_10.0.0.0__31bf3856ad364e35\Microsoft.AppV.AppvClientComConsumer.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\Microsoft.AppV.AppvClientComConsumer\v4.0_10.0.0.0__31bf3856ad364e35\Microsoft.AppV.AppvClientComConsumer.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-SecureStartup-Subsystem-WOW64-base-Package~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-SecureStartup-Subsystem-WOW64-base-Package~31bf3856ad364e35~amd64~en-US~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package00113~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.PowerShell.Commands.Utility\v4.0_3.0.0.0__31bf3856ad364e35\Microsoft.PowerShell.Commands.Utility.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Configuration.Install\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.Install.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package00113~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package00113~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Modules\BitLocker\Microsoft.BitLocker.Structures.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Windows-Defender-Management-Powershell-Group-WOW64-Package~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Windows-Defender-Management-Powershell-Group-WOW64-Package~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.PowerShell.Commands.Management\v4.0_3.0.0.0__31bf3856ad364e35\Microsoft.PowerShell.Commands.Management.dll VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package00113~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package00113~31bf3856ad364e35~amd64~~10.0.17134.1.cat VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\CustomMarshalers\v4.0_4.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\CustomMarshalers\v4.0_4.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\CustomMarshalers\v4.0_4.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Management.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\winlogon.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 6_2_05DF5FDC GetUserNameW, 6_2_05DF5FDC

Stealing of Sensitive Information:

barindex
Yara detected AgentTesla
Source: Yara match File source: 6.0.RegSvcs.exe.400000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.winlogon.exe.3cf9f30.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.0.RegSvcs.exe.400000.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.0.RegSvcs.exe.400000.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.0.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.winlogon.exe.3cc4110.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.0.RegSvcs.exe.400000.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.winlogon.exe.3cf9f30.3.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.winlogon.exe.3cc4110.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000006.00000000.673745105.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.928192822.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000000.672598413.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000000.672988393.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000000.673339643.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.678289324.0000000003BD9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.929063872.0000000002901000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.929157483.00000000029B4000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: winlogon.exe PID: 6768, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: RegSvcs.exe PID: 6284, type: MEMORYSTR
Tries to steal Mail credentials (via file / registry access)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Key opened: HKEY_CURRENT_USER\Software\IncrediMail\Identities Jump to behavior
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Key opened: HKEY_CURRENT_USER\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions Jump to behavior
Tries to harvest and steal ftp login credentials
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File opened: C:\Users\user\AppData\Roaming\FileZilla\recentservers.xml Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File opened: C:\Users\user\AppData\Roaming\SmartFTP\Client 2.0\Favorites\Quick Connect\ Jump to behavior
Tries to harvest and steal browser information (history, passwords, etc)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File opened: C:\Users\user\AppData\Local\Google\Chrome\User Data\Default\Login Data Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File opened: C:\Users\user\AppData\Roaming\Mozilla\Firefox\profiles.ini Jump to behavior
Yara detected Credential Stealer
Source: Yara match File source: 00000006.00000002.929063872.0000000002901000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegSvcs.exe PID: 6284, type: MEMORYSTR

Remote Access Functionality:

barindex
Yara detected AgentTesla
Source: Yara match File source: 6.0.RegSvcs.exe.400000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.winlogon.exe.3cf9f30.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.0.RegSvcs.exe.400000.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.0.RegSvcs.exe.400000.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.0.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.winlogon.exe.3cc4110.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.0.RegSvcs.exe.400000.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.winlogon.exe.3cf9f30.3.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.winlogon.exe.3cc4110.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000006.00000000.673745105.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.928192822.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000000.672598413.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000000.672988393.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000000.673339643.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.678289324.0000000003BD9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.929063872.0000000002901000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.929157483.00000000029B4000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: winlogon.exe PID: 6768, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: RegSvcs.exe PID: 6284, type: MEMORYSTR
windows-stand
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 532921 Sample: winlogon.exe Startdate: 02/12/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 8 other signatures 2->42 7 winlogon.exe 7 2->7         started        process3 dnsIp4 30 192.168.2.1 unknown unknown 7->30 24 C:\Users\user\AppData\...\UlhpAjSuVoTa.exe, PE32 7->24 dropped 26 C:\Users\user\AppData\Local\...\tmpD7F1.tmp, XML 7->26 dropped 28 C:\Users\user\AppData\...\winlogon.exe.log, ASCII 7->28 dropped 44 Uses schtasks.exe or at.exe to add and modify task schedules 7->44 46 Allocates memory in foreign processes 7->46 48 Adds a directory exclusion to Windows Defender 7->48 12 RegSvcs.exe 2 7->12         started        16 powershell.exe 25 7->16         started        18 schtasks.exe 1 7->18         started        file5 signatures6 process7 dnsIp8 32 smtp.stockmeieir.com 12->32 34 us2.smtp.mailhostbox.com 208.91.199.224, 49843, 587 PUBLIC-DOMAIN-REGISTRYUS United States 12->34 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->50 52 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->52 54 Tries to steal Mail credentials (via file / registry access) 12->54 56 3 other signatures 12->56 20 conhost.exe 16->20         started        22 conhost.exe 18->22         started        signatures9 process10
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
208.91.199.224
 us2.smtp.mailhostbox.com United States
394695 PUBLIC-DOMAIN-REGISTRYUS false

Private
IP
192.168.2.1

Contacted Domains

Name IP Active
us2.smtp.mailhostbox.com 208.91.199.224 true
smtp.stockmeieir.com unknown unknown