Windows Analysis Report KkPVouLuOx

Overview

General Information

Sample Name: KkPVouLuOx (renamed file extension from none to exe)
Analysis ID: 458889
MD5: f935b6c7f24be477a23044fa9a9dc9a5
SHA1: e67fb9bcf9975e0c6c4122ec7b25e61de6d1ba24
SHA256: 4827c1bdf5000cc8fc280fa631d36c752d0cdd7b0b357671ef1ebc46a11c440f
Tags: 32exe
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Sigma detected: MSBuild connects to smtp port
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected AgentTesla
Yara detected AgentTesla
Installs a global keyboard hook
Machine Learning detection for sample
Maps a DLL or memory area into another process
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Antivirus or Machine Learning detection for unpacked file
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to query CPU information (cpuid)
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a window with clipboard capturing capabilities
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses SMTP (mail sending)
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer

Classification

AV Detection:

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Found malware configuration
Source: 0.2.KkPVouLuOx.exe.2af0000.2.unpack Malware Configuration Extractor: Agenttesla {"Exfil Mode": "SMTP", "Username": "info@karsanmax.com", "Password": "erk#bmc2007", "Host": "mail.karsanmax.com"}
Multi AV Scanner detection for submitted file
Source: KkPVouLuOx.exe ReversingLabs: Detection: 52%
Machine Learning detection for sample
Source: KkPVouLuOx.exe Joe Sandbox ML: detected
Antivirus or Machine Learning detection for unpacked file
Source: 2.2.MSBuild.exe.400000.0.unpack Avira: Label: TR/Spy.Gen8

Compliance:

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Uses 32bit PE files
Source: KkPVouLuOx.exe Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE
Source: KkPVouLuOx.exe Static PE information: TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Source: Binary string: wntdll.pdbUGP source: KkPVouLuOx.exe, 00000000.00000003.236887920.0000000002B90000.00000004.00000001.sdmp
Source: Binary string: wntdll.pdb source: KkPVouLuOx.exe, 00000000.00000003.236887920.0000000002B90000.00000004.00000001.sdmp
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003AA41D FindFirstFileExW, 0_2_003AA41D

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 192.168.2.5:49733 -> 67.20.76.71:587
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.5:49733 -> 67.20.76.71:587
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 67.20.76.71 67.20.76.71
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: UNIFIEDLAYER-AS-1US UNIFIEDLAYER-AS-1US
Uses SMTP (mail sending)
Source: global traffic TCP traffic: 192.168.2.5:49733 -> 67.20.76.71:587
Source: unknown DNS traffic detected: queries for: mail.karsanmax.com
Source: MSBuild.exe, 00000002.00000002.502987084.00000000034C1000.00000004.00000001.sdmp String found in binary or memory: http://127.0.0.1:HTTP/1.1
Source: MSBuild.exe, 00000002.00000002.502987084.00000000034C1000.00000004.00000001.sdmp String found in binary or memory: http://DynDns.comDynDNS
Source: MSBuild.exe, 00000002.00000002.505310278.0000000003825000.00000004.00000001.sdmp String found in binary or memory: http://mail.karsanmax.com
Source: MSBuild.exe, 00000002.00000002.502987084.00000000034C1000.00000004.00000001.sdmp String found in binary or memory: http://myRZFP.com
Source: KkPVouLuOx.exe, 00000000.00000002.240535528.0000000002AF0000.00000040.00000001.sdmp, MSBuild.exe, 00000002.00000002.499202518.0000000000402000.00000040.00000001.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: MSBuild.exe, 00000002.00000002.502987084.00000000034C1000.00000004.00000001.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: MSBuild.exe, 00000002.00000002.502987084.00000000034C1000.00000004.00000001.sdmp String found in binary or memory: https://yE6yjauUrbNMVyVX.com

Key, Mouse, Clipboard, Microphone and Screen Capturing:

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Installs a global keyboard hook
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Windows user hook set: 0 keyboard low level C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Jump to behavior
Creates a window with clipboard capturing capabilities
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Window created: window name: CLIPBRDWNDCLASS Jump to behavior

System Summary:

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Detected potential crypto function
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003A8456 0_2_003A8456
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003A8BC9 0_2_003A8BC9
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_00396C20 0_2_00396C20
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_00399420 0_2_00399420
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_01457EC0 2_2_01457EC0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_0145E0D8 2_2_0145E0D8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_01459148 2_2_01459148
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016BAB30 2_2_016BAB30
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016B1BE0 2_2_016B1BE0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016BAD50 2_2_016BAD50
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016B4D38 2_2_016B4D38
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016B7DC0 2_2_016B7DC0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016B2E88 2_2_016B2E88
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016B42C8 2_2_016B42C8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016BBB70 2_2_016BBB70
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016BBC20 2_2_016BBC20
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016E5B18 2_2_016E5B18
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016EC0B8 2_2_016EC0B8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016EB3D5 2_2_016EB3D5
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016EB531 2_2_016EB531
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016EB4CF 2_2_016EB4CF
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016EB487 2_2_016EB487
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016EB7DE 2_2_016EB7DE
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_032847A0 2_2_032847A0
Sample file is different than original file name gathered from version info
Source: KkPVouLuOx.exe, 00000000.00000003.232733016.0000000002DFF000.00000004.00000001.sdmp Binary or memory string: OriginalFilenamentdll.dllj% vs KkPVouLuOx.exe
Source: KkPVouLuOx.exe, 00000000.00000002.240535528.0000000002AF0000.00000040.00000001.sdmp Binary or memory string: OriginalFilenameFLQsqxQVGqhcqKgsCJFGvvBdNseuTyWeUb.exe4 vs KkPVouLuOx.exe
Uses 32bit PE files
Source: KkPVouLuOx.exe Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE
Source: classification engine Classification label: mal100.spre.troj.spyw.evad.winEXE@3/0@1/1
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Command line argument: n: 0_2_003AE5C0
Source: KkPVouLuOx.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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\MSBuild.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: KkPVouLuOx.exe ReversingLabs: Detection: 52%
Source: C:\Users\user\Desktop\KkPVouLuOx.exe File read: C:\Users\user\Desktop\KkPVouLuOx.exe Jump to behavior
Source: unknown Process created: C:\Users\user\Desktop\KkPVouLuOx.exe 'C:\Users\user\Desktop\KkPVouLuOx.exe'
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe 'C:\Users\user\Desktop\KkPVouLuOx.exe'
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe 'C:\Users\user\Desktop\KkPVouLuOx.exe' Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{172BDDF8-CEEA-11D1-8B05-00600806D9B6}\InProcServer32 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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\MSBuild.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Source: KkPVouLuOx.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IMPORT
Source: KkPVouLuOx.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_RESOURCE
Source: KkPVouLuOx.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_BASERELOC
Source: KkPVouLuOx.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: KkPVouLuOx.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
Source: KkPVouLuOx.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IAT
Source: KkPVouLuOx.exe Static PE information: TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Source: KkPVouLuOx.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: Binary string: wntdll.pdbUGP source: KkPVouLuOx.exe, 00000000.00000003.236887920.0000000002B90000.00000004.00000001.sdmp
Source: Binary string: wntdll.pdb source: KkPVouLuOx.exe, 00000000.00000003.236887920.0000000002B90000.00000004.00000001.sdmp
Source: KkPVouLuOx.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IMPORT is in: .rdata
Source: KkPVouLuOx.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_RESOURCE is in: .rsrc
Source: KkPVouLuOx.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_BASERELOC is in: .reloc
Source: KkPVouLuOx.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG is in: .rdata
Source: KkPVouLuOx.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IAT is in: .rdata

Data Obfuscation:

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Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003920E8 push ss; retn 0038h 0_2_003920E5
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_00392100 push edx; retn 0038h 0_2_00392101
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003901F4 push 72003893h; retf 0_2_0039023D
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_00392230 push es; ret 0_2_00392231
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_0039226C pushfd ; ret 0_2_0039226D
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_00390251 push 72003893h; retf 0_2_0039023D
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_00392250 push esi; ret 0_2_00392251
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_00392254 pushad ; ret 0_2_00392255
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_0038D38C push ds; retf 0_2_0038D38D
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_00391F77 push ss; retn 0038h 0_2_003920E5
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_01453D78 pushad ; retf 2_2_01453D79
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_01453D7B push esp; retf 2_2_01453D81
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016B9493 push 8BFFFFFFh; retf 2_2_016B94A0

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\MSBuild.exe Registry key monitored for changes: HKEY_CURRENT_USER_Classes Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

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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\MSBuild.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_BaseBoard
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_NetworkAdapterConfiguration
Contains long sleeps (>= 3 min)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Window / User API: threadDelayed 1350 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Window / User API: threadDelayed 8496 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe TID: 2964 Thread sleep time: -19369081277395017s >= -30000s Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe TID: 5472 Thread sleep count: 1350 > 30 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe TID: 5472 Thread sleep count: 8496 > 30 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\MSBuild.exe WMI Queries: IWbemServices::CreateInstanceEnum - root\cimv2 : Win32_Processor
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003AA41D FindFirstFileExW, 0_2_003AA41D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: MSBuild.exe, 00000002.00000002.508724569.00000000063E0000.00000002.00000001.sdmp Binary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
Source: MSBuild.exe, 00000002.00000002.508724569.00000000063E0000.00000002.00000001.sdmp Binary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
Source: MSBuild.exe, 00000002.00000002.508724569.00000000063E0000.00000002.00000001.sdmp Binary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
Source: MSBuild.exe, 00000002.00000002.508915956.0000000006509000.00000004.00000001.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dlllter-0000
Source: MSBuild.exe, 00000002.00000002.508724569.00000000063E0000.00000002.00000001.sdmp Binary or memory string: An unknown internal message was received by the Hyper-V Compute Service.
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process information queried: ProcessInformation Jump to behavior

Anti Debugging:

barindex
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Code function: 2_2_016B0878 LdrInitializeThunk, 2_2_016B0878
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003A2195 IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_003A2195
Contains functionality to read the PEB
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003AAF80 mov eax, dword ptr fs:[00000030h] 0_2_003AAF80
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003A5DA4 mov eax, dword ptr fs:[00000030h] 0_2_003A5DA4
Enables debug privileges
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003A2195 IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_003A2195
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003A23F7 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 0_2_003A23F7
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003A48DC IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_003A48DC
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

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Maps a DLL or memory area into another process
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Section loaded: unknown target: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe protection: execute and read and write Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe 'C:\Users\user\Desktop\KkPVouLuOx.exe' Jump to behavior
Source: MSBuild.exe, 00000002.00000002.502443522.0000000001CF0000.00000002.00000001.sdmp Binary or memory string: Shell_TrayWnd
Source: MSBuild.exe, 00000002.00000002.502443522.0000000001CF0000.00000002.00000001.sdmp Binary or memory string: Progman
Source: MSBuild.exe, 00000002.00000002.502443522.0000000001CF0000.00000002.00000001.sdmp Binary or memory string: SProgram Managerl
Source: MSBuild.exe, 00000002.00000002.502443522.0000000001CF0000.00000002.00000001.sdmp Binary or memory string: Shell_TrayWnd,
Source: MSBuild.exe, 00000002.00000002.502443522.0000000001CF0000.00000002.00000001.sdmp Binary or memory string: Progmanlock

Language, Device and Operating System Detection:

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Contains functionality to query CPU information (cpuid)
Source: C:\Users\user\Desktop\KkPVouLuOx.exe Code function: 0_2_003A1EB4 cpuid 0_2_003A1EB4
Queries the volume information (name, serial number etc) of a device
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Queries volume information: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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\MSBuild.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\MSBuild.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\MSBuild.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\MSBuild.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\MSBuild.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\MSBuild.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\MSBuild.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\KkPVouLuOx.exe Code function: 0_2_003A2085 GetSystemTimeAsFileTime,GetCurrentThreadId,GetCurrentProcessId,QueryPerformanceCounter, 0_2_003A2085
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information:

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Yara detected AgentTesla
Source: Yara match File source: 0.2.KkPVouLuOx.exe.2af0000.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.KkPVouLuOx.exe.2af0000.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 2.2.MSBuild.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000002.00000002.499202518.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.240535528.0000000002AF0000.00000040.00000001.sdmp, type: MEMORY
Yara detected AgentTesla
Source: Yara match File source: 0.2.KkPVouLuOx.exe.2af0000.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.KkPVouLuOx.exe.2af0000.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 2.2.MSBuild.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000002.00000002.499202518.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.240535528.0000000002AF0000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000002.00000002.502987084.00000000034C1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: KkPVouLuOx.exe PID: 1336, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: MSBuild.exe PID: 1068, type: MEMORYSTR
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Key opened: HKEY_CURRENT_USER\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions Jump to behavior
Tries to harvest and steal browser information (history, passwords, etc)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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\MSBuild.exe File opened: C:\Users\user\AppData\Roaming\Mozilla\Firefox\profiles.ini Jump to behavior
Tries to harvest and steal ftp login credentials
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe File opened: C:\Users\user\AppData\Roaming\FileZilla\recentservers.xml Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe File opened: C:\Users\user\AppData\Roaming\SmartFTP\Client 2.0\Favorites\Quick Connect\ Jump to behavior
Tries to steal Mail credentials (via file access)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Key opened: HKEY_CURRENT_USER\Software\IncrediMail\Identities Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Yara detected Credential Stealer
Source: Yara match File source: 00000002.00000002.502987084.00000000034C1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: MSBuild.exe PID: 1068, type: MEMORYSTR

Remote Access Functionality:

barindex
Yara detected AgentTesla
Source: Yara match File source: 0.2.KkPVouLuOx.exe.2af0000.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.KkPVouLuOx.exe.2af0000.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 2.2.MSBuild.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000002.00000002.499202518.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.240535528.0000000002AF0000.00000040.00000001.sdmp, type: MEMORY
Yara detected AgentTesla
Source: Yara match File source: 0.2.KkPVouLuOx.exe.2af0000.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.KkPVouLuOx.exe.2af0000.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 2.2.MSBuild.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000002.00000002.499202518.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.240535528.0000000002AF0000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000002.00000002.502987084.00000000034C1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: KkPVouLuOx.exe PID: 1336, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: MSBuild.exe PID: 1068, type: MEMORYSTR
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs