Analysis Report Following abusive email letter .exe

Overview

General Information

Sample Name: Following abusive email letter .exe
Analysis ID: 433262
MD5: 368a0ec11590e137b1cd5405cd0591db
SHA1: 48c11cb189d44ae0c30b32f0aba41d4c52568c44
SHA256: c0b43d27c73d2a64f25a1e095a10dcf339635d9c48c6d612b37eba084341e103
Tags: exe
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Found malware configuration
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected AgentTesla
Yara detected AgentTesla
Yara detected AntiVM3
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
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)
Sigma detected: Suspicious Process Start Without DLL
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Antivirus or Machine Learning detection for unpacked file
Contains capabilities to detect virtual machines
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Drops PE files
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
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)
PE file contains strange resources
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 execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses FTP
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer

Classification

AV Detection:

barindex
Found malware configuration
Source: 4.2.RegSvcs.exe.400000.0.unpack Malware Configuration Extractor: Agenttesla {"Exfil Mode": "FTP", "FTP Info": "ftp://files.000webhost.com/zincocomputer147"}
Multi AV Scanner detection for dropped file
Source: C:\Users\user\AppData\Roaming\VUGIHQGciwlxDd.exe ReversingLabs: Detection: 39%
Multi AV Scanner detection for submitted file
Source: Following abusive email letter .exe Virustotal: Detection: 32% Perma Link
Source: Following abusive email letter .exe ReversingLabs: Detection: 32%
Antivirus or Machine Learning detection for unpacked file
Source: 4.2.RegSvcs.exe.400000.0.unpack Avira: Label: TR/Spy.Gen8
Source: 4.0.RegSvcs.exe.400000.0.unpack Avira: Label: TR/Spy.Gen8

Compliance:

barindex
Uses 32bit PE files
Source: Following abusive email letter .exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED
Source: Following abusive email letter .exe Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Source: Binary string: OpenExistingResult.pdb source: Following abusive email letter .exe
Source: Binary string: OpenExistingResult.pdbH source: Following abusive email letter .exe

Software Vulnerabilities:

barindex
Found inlined nop instructions (likely shell or obfuscated code)
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 4x nop then mov dword ptr [ebp-18h], 00000000h 0_2_02E12A38
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 4x nop then mov dword ptr [ebp-18h], 00000000h 0_2_02E12A29
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 4x nop then mov dword ptr [ebp-18h], 00000000h 0_2_02E13FC8
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 4x nop then mov dword ptr [ebp-18h], 00000000h 0_2_02E13FD8

Networking:

barindex
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Source: Traffic Snort IDS: 2029927 ET TROJAN AgentTesla Exfil via FTP 192.168.2.3:49741 -> 145.14.145.177:21
Source: Traffic Snort IDS: 2029928 ET TROJAN AgentTesla HTML System Info Report Exfil via FTP 192.168.2.3:49742 -> 145.14.145.177:30339
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.3:49742 -> 145.14.145.177:30339
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 145.14.145.177 145.14.145.177
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: AWEXUS AWEXUS
Uses FTP
Source: unknown FTP traffic detected: 145.14.145.177:21 -> 192.168.2.3:49741 220 ProFTPD Server (000webhost.com) [::ffff:145.14.145.177]
Source: unknown DNS traffic detected: queries for: files.000webhost.com
Source: RegSvcs.exe, 00000004.00000002.467290309.0000000002E61000.00000004.00000001.sdmp String found in binary or memory: ftp://files.000webhost.com/zincocomputer147STORLengthWriteCloseGetBytesOpera
Source: RegSvcs.exe, 00000004.00000002.467290309.0000000002E61000.00000004.00000001.sdmp String found in binary or memory: http://127.0.0.1:HTTP/1.1
Source: RegSvcs.exe, 00000004.00000002.467290309.0000000002E61000.00000004.00000001.sdmp String found in binary or memory: http://CqZTYA.com
Source: RegSvcs.exe, 00000004.00000002.467290309.0000000002E61000.00000004.00000001.sdmp String found in binary or memory: http://DynDns.comDynDNS
Source: RegSvcs.exe, 00000004.00000002.468629357.000000000308F000.00000004.00000001.sdmp String found in binary or memory: http://JC95xwwqEnXy3nGe.net
Source: RegSvcs.exe, 00000004.00000002.468629357.000000000308F000.00000004.00000001.sdmp String found in binary or memory: http://JC95xwwqEnXy3nGe.netL
Source: RegSvcs.exe, 00000004.00000002.469009805.0000000003111000.00000004.00000001.sdmp String found in binary or memory: http://files.000webhost.com
Source: Following abusive email letter .exe, 00000000.00000002.211148958.00000000030C1000.00000004.00000001.sdmp, RegSvcs.exe, 00000004.00000002.468959194.0000000003103000.00000004.00000001.sdmp String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name
Source: RegSvcs.exe, 00000004.00000002.469009805.0000000003111000.00000004.00000001.sdmp String found in binary or memory: http://us-east-1.route-1000.000webhost.awex.io
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp String found in binary or memory: https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css
Source: Following abusive email letter .exe, 00000000.00000002.211544150.00000000040C9000.00000004.00000001.sdmp, RegSvcs.exe, 00000004.00000002.464217016.0000000000402000.00000040.00000001.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, 00000004.00000002.467290309.0000000002E61000.00000004.00000001.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

System Summary:

barindex
.NET source code contains very large array initializations
Source: 4.0.RegSvcs.exe.400000.0.unpack, u003cPrivateImplementationDetailsu003eu007bF52F2392u002d8C75u002d4729u002dA1E6u002d025BFAA162F9u007d/CB8ACA7Au002d9CEBu002d462Du002dA49Bu002dF669480A59B6.cs Large array initialization: .cctor: array initializer size 11932
Detected potential crypto function
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_00A7264C 0_2_00A7264C
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_016C9AA8 0_2_016C9AA8
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_016CC750 0_2_016CC750
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_016C9948 0_2_016C9948
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_02E132F0 0_2_02E132F0
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_02E106E0 0_2_02E106E0
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_02E106D0 0_2_02E106D0
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_02E10B70 0_2_02E10B70
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_02E10B5F 0_2_02E10B5F
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A3EED0 0_2_05A3EED0
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A3F650 0_2_05A3F650
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A31D28 0_2_05A31D28
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A35D31 0_2_05A35D31
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A31D38 0_2_05A31D38
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A33519 0_2_05A33519
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A35D40 0_2_05A35D40
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A31480 0_2_05A31480
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A34468 0_2_05A34468
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A3AC70 0_2_05A3AC70
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A34458 0_2_05A34458
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A3A7F0 0_2_05A3A7F0
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A32720 0_2_05A32720
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A32730 0_2_05A32730
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A31769 0_2_05A31769
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A31778 0_2_05A31778
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A39F50 0_2_05A39F50
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A356E0 0_2_05A356E0
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A356D2 0_2_05A356D2
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A33610 0_2_05A33610
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A32189 0_2_05A32189
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A32198 0_2_05A32198
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A3C198 0_2_05A3C198
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A30920 0_2_05A30920
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A30930 0_2_05A30930
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A39948 0_2_05A39948
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A358E8 0_2_05A358E8
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A358D8 0_2_05A358D8
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A35039 0_2_05A35039
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A36805 0_2_05A36805
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A36808 0_2_05A36808
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A32040 0_2_05A32040
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A35048 0_2_05A35048
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A35B38 0_2_05A35B38
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A35B48 0_2_05A35B48
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BA0820 4_2_00BA0820
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BAE018 4_2_00BAE018
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BA8D70 4_2_00BA8D70
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BA3FC8 4_2_00BA3FC8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BA0CB0 4_2_00BA0CB0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BA94C8 4_2_00BA94C8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BA2C08 4_2_00BA2C08
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BAD9E8 4_2_00BAD9E8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BA8B50 4_2_00BA8B50
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BB00E0 4_2_00BB00E0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BBA870 4_2_00BBA870
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BB2920 4_2_00BB2920
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BB7AB0 4_2_00BB7AB0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BB6678 4_2_00BB6678
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BB6BF8 4_2_00BB6BF8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BBEF30 4_2_00BBEF30
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BB0720 4_2_00BB0720
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BB2D38 4_2_00BB2D38
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BB87A0 4_2_00BB87A0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BCB060 4_2_00BCB060
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BC2D50 4_2_00BC2D50
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BCDEC6 4_2_00BCDEC6
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BC1FF0 4_2_00BC1FF0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BCA720 4_2_00BCA720
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BC2768 4_2_00BC2768
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BC9DB8 4_2_00BC9DB8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_010B47A0 4_2_010B47A0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_010B479F 4_2_010B479F
PE file contains strange resources
Source: Following abusive email letter .exe Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Source: VUGIHQGciwlxDd.exe.0.dr Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Sample file is different than original file name gathered from version info
Source: Following abusive email letter .exe, 00000000.00000002.215243237.000000000C230000.00000002.00000001.sdmp Binary or memory string: originalfilename vs Following abusive email letter .exe
Source: Following abusive email letter .exe, 00000000.00000002.215243237.000000000C230000.00000002.00000001.sdmp Binary or memory string: OriginalFilenamepropsys.dll.mui@ vs Following abusive email letter .exe
Source: Following abusive email letter .exe, 00000000.00000002.211544150.00000000040C9000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameKygo.dll* vs Following abusive email letter .exe
Source: Following abusive email letter .exe, 00000000.00000002.211544150.00000000040C9000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameTGqXBSLBNqFAlVDcDrdeyUgg.exe4 vs Following abusive email letter .exe
Source: Following abusive email letter .exe, 00000000.00000002.211544150.00000000040C9000.00000004.00000001.sdmp Binary or memory string: OriginalFilenameDSASignature.dll@ vs Following abusive email letter .exe
Source: Following abusive email letter .exe, 00000000.00000002.214907946.000000000C130000.00000002.00000001.sdmp Binary or memory string: System.OriginalFileName vs Following abusive email letter .exe
Source: Following abusive email letter .exe, 00000000.00000000.199906618.0000000000B50000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameOpenExistingResult.exe< vs Following abusive email letter .exe
Source: Following abusive email letter .exe Binary or memory string: OriginalFilenameOpenExistingResult.exe< vs Following abusive email letter .exe
Uses 32bit PE files
Source: Following abusive email letter .exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED
Source: Following abusive email letter .exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: VUGIHQGciwlxDd.exe.0.dr Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: Following abusive email letter .exe, vJiGl01UUJfXfNWas3/DyyVDbaRvM1YfIq9il.cs Cryptographic APIs: 'CreateDecryptor'
Source: Following abusive email letter .exe, vJiGl01UUJfXfNWas3/DyyVDbaRvM1YfIq9il.cs Cryptographic APIs: 'CreateDecryptor'
Source: VUGIHQGciwlxDd.exe.0.dr, vJiGl01UUJfXfNWas3/DyyVDbaRvM1YfIq9il.cs Cryptographic APIs: 'CreateDecryptor'
Source: VUGIHQGciwlxDd.exe.0.dr, vJiGl01UUJfXfNWas3/DyyVDbaRvM1YfIq9il.cs Cryptographic APIs: 'CreateDecryptor'
Source: 4.0.RegSvcs.exe.400000.0.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 4.0.RegSvcs.exe.400000.0.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: classification engine Classification label: mal100.troj.spyw.evad.winEXE@6/4@2/1
Source: C:\Users\user\Desktop\Following abusive email letter .exe File created: C:\Users\user\AppData\Roaming\VUGIHQGciwlxDd.exe Jump to behavior
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:4884:120:WilError_01
Source: C:\Users\user\Desktop\Following abusive email letter .exe File created: C:\Users\user\AppData\Local\Temp\tmp1045.tmp Jump to behavior
Source: Following abusive email letter .exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\Following abusive email letter .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\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\Following abusive email letter .exe File read: C:\Users\user\Desktop\desktop.ini Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers 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:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: Select * from Clientes WHERE id=@id;;
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: Select * from Aluguel Erro ao listar Banco sql-Aluguel.INSERT INTO Aluguel VALUES(@clienteID, @data);
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: Select * from SecurityLogonType WHERE id=@id;
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: Select * from SecurityLogonType WHERE modelo=@modelo;
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: INSERT INTO Itens_Aluguel VALUES(@aluguelID, @aviaoID, @validade);
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: Insert into Clientes values (@nome, @cpf, @rg, @cidade, @endereco, @uf, @telefone);
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: INSERT INTO Aluguel VALUES(@clienteID, @data);
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: INSERT INTO SecurityLogonType VALUES(@modelo, @fabricante, @ano, @cor);
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: Select * from SecurityLogonType*Erro ao listar Banco sql-SecurityLogonType,Select * from SecurityLogonType WHERE id=@id;Select * from SecurityLogonType WHERE (modelo LIKE @modelo)
Source: Following abusive email letter .exe Virustotal: Detection: 32%
Source: Following abusive email letter .exe ReversingLabs: Detection: 32%
Source: C:\Users\user\Desktop\Following abusive email letter .exe File read: C:\Users\user\Desktop\Following abusive email letter .exe Jump to behavior
Source: unknown Process created: C:\Users\user\Desktop\Following abusive email letter .exe 'C:\Users\user\Desktop\Following abusive email letter .exe'
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process created: C:\Windows\SysWOW64\schtasks.exe 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\VUGIHQGciwlxDd' /XML 'C:\Users\user\AppData\Local\Temp\tmp1045.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\Following abusive email letter .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\Following abusive email letter .exe Process created: C:\Windows\SysWOW64\schtasks.exe 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\VUGIHQGciwlxDd' /XML 'C:\Users\user\AppData\Local\Temp\tmp1045.tmp' Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .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\Following abusive email letter .exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{95E15D0A-66E6-93D9-C53C-76E6219D3341}\InProcServer32 Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .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: Following abusive email letter .exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: Following abusive email letter .exe Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Source: Following abusive email letter .exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: Binary string: OpenExistingResult.pdb source: Following abusive email letter .exe
Source: Binary string: OpenExistingResult.pdbH source: Following abusive email letter .exe

Data Obfuscation:

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.NET source code contains method to dynamically call methods (often used by packers)
Source: Following abusive email letter .exe, vJiGl01UUJfXfNWas3/DyyVDbaRvM1YfIq9il.cs .Net Code: stackVariable5.GetMethod("GetDelegateForFunctionPointer", V_0)
Source: VUGIHQGciwlxDd.exe.0.dr, vJiGl01UUJfXfNWas3/DyyVDbaRvM1YfIq9il.cs .Net Code: stackVariable5.GetMethod("GetDelegateForFunctionPointer", V_0)
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_00A75DCB pushfd ; retf 0_2_00A75ED9
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_016CE8F0 pushfd ; ret 0_2_016CE8F1
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_02E132F0 push 840617CBh; retf 0_2_02E13701
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A36DE6 push esi; ret 0_2_05A36DE7
Source: C:\Users\user\Desktop\Following abusive email letter .exe Code function: 0_2_05A37790 push esp; iretd 0_2_05A37792
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BCC4E0 pushfd ; iretd 4_2_00BCCA66
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BC2768 pushfd ; iretd 4_2_00BC2B86
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BC7A37 push edi; retn 0000h 4_2_00BC7A39
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BC1E58 pushfd ; iretd 4_2_00BC1E66
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BC2B78 pushfd ; iretd 4_2_00BC2B86
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_010B451C push ss; iretd 4_2_010B4526
Source: initial sample Static PE information: section name: .text entropy: 7.85847754402
Source: initial sample Static PE information: section name: .text entropy: 7.85847754402
Source: Following abusive email letter .exe, vJiGl01UUJfXfNWas3/DyyVDbaRvM1YfIq9il.cs High entropy of concatenated method names: '.cctor', 'SUpqes', 'creoiNvd7', 'jZiU8kt7k', 'yIEeUuogE', 'HNMMnrD0K', 'U6ZIpjiMV', 'TYIaeXNeW', 'rI3lmZ9FL', 'SuhhReBcy'
Source: VUGIHQGciwlxDd.exe.0.dr, vJiGl01UUJfXfNWas3/DyyVDbaRvM1YfIq9il.cs High entropy of concatenated method names: '.cctor', 'SUpqes', 'creoiNvd7', 'jZiU8kt7k', 'yIEeUuogE', 'HNMMnrD0K', 'U6ZIpjiMV', 'TYIaeXNeW', 'rI3lmZ9FL', 'SuhhReBcy'

Persistence and Installation Behavior:

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Drops PE files
Source: C:\Users\user\Desktop\Following abusive email letter .exe File created: C:\Users\user\AppData\Roaming\VUGIHQGciwlxDd.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\Following abusive email letter .exe Process created: C:\Windows\SysWOW64\schtasks.exe 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\VUGIHQGciwlxDd' /XML 'C:\Users\user\AppData\Local\Temp\tmp1045.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\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .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
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:

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Yara detected AntiVM3
Source: Yara match File source: 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: Following abusive email letter .exe PID: 3888, type: MEMORY
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
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: WINE_GET_UNIX_FILE_NAME
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: SBIEDLL.DLL
Contains capabilities to detect virtual machines
Source: C:\Users\user\Desktop\Following abusive email letter .exe File opened / queried: SCSI#CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00#5&280b647&0&000000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b} Jump to behavior
Contains long sleeps (>= 3 min)
Source: C:\Users\user\Desktop\Following abusive email letter .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\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Window / User API: threadDelayed 3521 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Window / User API: threadDelayed 6262 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\Following abusive email letter .exe TID: 6040 Thread sleep time: -101485s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .exe TID: 2396 Thread sleep time: -922337203685477s >= -30000s 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
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: C:\Users\user\Desktop\Following abusive email letter .exe Thread delayed: delay time: 101485 Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .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: RegSvcs.exe, 00000004.00000002.472242636.0000000005EA0000.00000002.00000001.sdmp Binary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: vmware
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: C:\PROGRAM FILES\VMWARE\VMWARE TOOLS\
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: SOFTWARE\VMware, Inc.\VMware Tools
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: VMware SVGA II!Add-MpPreference -ExclusionPath "
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: VMWARE
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: InstallPath%C:\PROGRAM FILES\VMWARE\VMWARE TOOLS\
Source: RegSvcs.exe, 00000004.00000002.472242636.0000000005EA0000.00000002.00000001.sdmp Binary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
Source: RegSvcs.exe, 00000004.00000002.472242636.0000000005EA0000.00000002.00000001.sdmp Binary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: VMWARE"SOFTWARE\VMware, Inc.\VMware ToolsLHARDWARE\DEVICEMAP\Scsi\Scsi Port 1\Scsi Bus 0\Target Id 0\Logical Unit Id 0LHARDWARE\DEVICEMAP\Scsi\Scsi Port 2\Scsi Bus 0\Target Id 0\Logical Unit Id 0'SYSTEM\ControlSet001\Services\Disk\Enum
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: VMware SVGA II
Source: Following abusive email letter .exe, 00000000.00000002.211185227.00000000030FF000.00000004.00000001.sdmp Binary or memory string: vmwareNSYSTEM\ControlSet001\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0000
Source: RegSvcs.exe, 00000004.00000002.472641648.0000000005FBA000.00000004.00000001.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll
Source: RegSvcs.exe, 00000004.00000002.472242636.0000000005EA0000.00000002.00000001.sdmp Binary or memory string: An unknown internal message was received by the Hyper-V Compute Service.

Anti Debugging:

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Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe Code function: 4_2_00BAE018 LdrInitializeThunk, 4_2_00BAE018
Source: C:\Users\user\Desktop\Following abusive email letter .exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

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Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\Following abusive email letter .exe Process created: C:\Windows\SysWOW64\schtasks.exe 'C:\Windows\System32\schtasks.exe' /Create /TN 'Updates\VUGIHQGciwlxDd' /XML 'C:\Users\user\AppData\Local\Temp\tmp1045.tmp' Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .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, 00000004.00000002.466731473.0000000001860000.00000002.00000001.sdmp Binary or memory string: Program Manager
Source: RegSvcs.exe, 00000004.00000002.466731473.0000000001860000.00000002.00000001.sdmp Binary or memory string: Shell_TrayWnd
Source: RegSvcs.exe, 00000004.00000002.466731473.0000000001860000.00000002.00000001.sdmp Binary or memory string: Progman
Source: RegSvcs.exe, 00000004.00000002.466731473.0000000001860000.00000002.00000001.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\Following abusive email letter .exe Queries volume information: C:\Users\user\Desktop\Following abusive email letter .exe VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\Following abusive email letter .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:\Users\user\Desktop\Following abusive email letter .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\Following abusive email letter .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\Following abusive email letter .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\Following abusive email letter .exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Runtime.Remoting\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Remoting.dll 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\Following abusive email letter .exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information:

barindex
Yara detected AgentTesla
Source: Yara match File source: 00000004.00000002.464217016.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000004.00000000.209849248.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.211544150.00000000040C9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 4.0.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Following abusive email letter .exe.4183028.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Following abusive email letter .exe.4183028.2.raw.unpack, type: UNPACKEDPE
Yara detected AgentTesla
Source: Yara match File source: 00000004.00000002.464217016.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000004.00000000.209849248.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.211544150.00000000040C9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000004.00000002.468629357.000000000308F000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegSvcs.exe PID: 3352, type: MEMORY
Source: Yara match File source: Process Memory Space: Following abusive email letter .exe PID: 3888, type: MEMORY
Source: Yara match File source: 4.0.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Following abusive email letter .exe.4183028.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Following abusive email letter .exe.4183028.2.raw.unpack, type: UNPACKEDPE
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 browser information (history, passwords, etc)
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
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
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\SmartFTP\Client 2.0\Favorites\Quick Connect\ Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe File opened: C:\Users\user\AppData\Roaming\FileZilla\recentservers.xml Jump to behavior
Tries to steal Mail credentials (via file 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\IncrediMail\Identities 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
Yara detected Credential Stealer
Source: Yara match File source: 00000004.00000002.467290309.0000000002E61000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegSvcs.exe PID: 3352, type: MEMORY

Remote Access Functionality:

barindex
Yara detected AgentTesla
Source: Yara match File source: 00000004.00000002.464217016.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000004.00000000.209849248.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.211544150.00000000040C9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 4.0.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Following abusive email letter .exe.4183028.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Following abusive email letter .exe.4183028.2.raw.unpack, type: UNPACKEDPE
Yara detected AgentTesla
Source: Yara match File source: 00000004.00000002.464217016.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000004.00000000.209849248.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.211544150.00000000040C9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000004.00000002.468629357.000000000308F000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: RegSvcs.exe PID: 3352, type: MEMORY
Source: Yara match File source: Process Memory Space: Following abusive email letter .exe PID: 3888, type: MEMORY
Source: Yara match File source: 4.0.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Following abusive email letter .exe.4183028.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.RegSvcs.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.Following abusive email letter .exe.4183028.2.raw.unpack, type: UNPACKEDPE
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: 433262 Sample: Following abusive email let... Startdate: 11/06/2021 Architecture: WINDOWS Score: 100 28 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->28 30 Found malware configuration 2->30 32 Multi AV Scanner detection for dropped file 2->32 34 9 other signatures 2->34 7 Following abusive email letter .exe 7 2->7         started        process3 file4 18 C:\Users\user\AppData\...\VUGIHQGciwlxDd.exe, PE32 7->18 dropped 20 C:\Users\user\AppData\Local\...\tmp1045.tmp, XML 7->20 dropped 22 Following abusive email letter .exe.log, ASCII 7->22 dropped 10 RegSvcs.exe 15 2 7->10         started        14 schtasks.exe 1 7->14         started        process5 dnsIp6 24 us-east-1.route-1000.000webhost.awex.io 145.14.145.177, 21, 30339, 49741 AWEXUS Netherlands 10->24 26 files.000webhost.com 10->26 36 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 10->36 38 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->38 40 Tries to steal Mail credentials (via file access) 10->40 42 3 other signatures 10->42 16 conhost.exe 14->16         started        signatures7 process8
  • 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
145.14.145.177
 us-east-1.route-1000.000webhost.awex.io Netherlands
204915 AWEXUS true

Contacted Domains

Name IP Active
us-east-1.route-1000.000webhost.awex.io 145.14.145.177 true
files.000webhost.com unknown unknown