Analysis

  • max time kernel
    121s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 01:52

General

  • Target

    662fc0c1c151c2f950fb1d443d6b4ed9e2bf9e2d5e927f70f009527cb5524c7c.exe

  • Size

    667KB

  • MD5

    2cf895235f1a59a179941ba1010f803c

  • SHA1

    a5aaf0d4dbd06cca54001311e81de4e0c593d8a3

  • SHA256

    662fc0c1c151c2f950fb1d443d6b4ed9e2bf9e2d5e927f70f009527cb5524c7c

  • SHA512

    292f28aa8faf6fe89c7d5c3fecc9ffc8fe6954171bad62fdd93f2af89389f8720a69cc2ddf59b973f69688dc8000267c60d084ea5c344fb0eb6d40b43ecc0640

  • SSDEEP

    12288:QdJeACZVyJgXKN/4ldBrJHelxaWca0nP+XFDDgffJfQLFWh7uxPNE32rM:QdJDl/YdBr9yxa1a02BDgffJfmWhc1+c

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\662fc0c1c151c2f950fb1d443d6b4ed9e2bf9e2d5e927f70f009527cb5524c7c.exe
    "C:\Users\Admin\AppData\Local\Temp\662fc0c1c151c2f950fb1d443d6b4ed9e2bf9e2d5e927f70f009527cb5524c7c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\662fc0c1c151c2f950fb1d443d6b4ed9e2bf9e2d5e927f70f009527cb5524c7c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tAAudzIAJWZy.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2676
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tAAudzIAJWZy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF31.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2500
    • C:\Users\Admin\AppData\Local\Temp\662fc0c1c151c2f950fb1d443d6b4ed9e2bf9e2d5e927f70f009527cb5524c7c.exe
      "C:\Users\Admin\AppData\Local\Temp\662fc0c1c151c2f950fb1d443d6b4ed9e2bf9e2d5e927f70f009527cb5524c7c.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCF31.tmp
    Filesize

    1KB

    MD5

    7adf2485eb2238530bfa0dc01298cd57

    SHA1

    9031e2ecba6cb5255ab2cef0dc17fc01fbe612a1

    SHA256

    b43cea7161b830a23039c43321129fecb3c75669650cabc0ea859a9300bcd558

    SHA512

    600997d08a5cfbddf61a1baae29c985e1f59dede2c4e4ab651e31d7b9c1a361ffb8049c5bbb7892646bb7d53f6434bd775e16274a956eb7dffd812e1f2862480

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\9H0C79L8C7BPRS59PTBV.temp
    Filesize

    7KB

    MD5

    2a444b465134c991c02a00946e5d8371

    SHA1

    71c955968d22fa8c6444143b746e31ee62aa6c29

    SHA256

    7d7575283b90c294bea135e24543661ae52554f692e760ec6092c82cf14db3b8

    SHA512

    e71c7a8ccdc8b795eba600054875cfffa64e4d7c672c3c74b0c5466e67df5567d2bb8767614c45b2e0dee4ef5ef3b48815e09d48be5779537678447ad42867d0

  • memory/1908-4-0x00000000003B0000-0x00000000003CA000-memory.dmp
    Filesize

    104KB

  • memory/1908-32-0x0000000074230000-0x000000007491E000-memory.dmp
    Filesize

    6.9MB

  • memory/1908-0-0x000000007423E000-0x000000007423F000-memory.dmp
    Filesize

    4KB

  • memory/1908-5-0x0000000000260000-0x0000000000270000-memory.dmp
    Filesize

    64KB

  • memory/1908-6-0x0000000005450000-0x00000000054D2000-memory.dmp
    Filesize

    520KB

  • memory/1908-2-0x0000000074230000-0x000000007491E000-memory.dmp
    Filesize

    6.9MB

  • memory/1908-1-0x00000000008B0000-0x000000000095C000-memory.dmp
    Filesize

    688KB

  • memory/1908-3-0x0000000004F10000-0x0000000004FB0000-memory.dmp
    Filesize

    640KB

  • memory/2416-29-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-28-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-31-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-25-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-23-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-21-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-19-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2416-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB