Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 14:50

General

  • Target

    SOA_41457.exe

  • Size

    772KB

  • MD5

    f0be9493ae223f78ef2b7218f388ae87

  • SHA1

    69a0ad09c3b7c919d4f5c8729033f3a1db10a662

  • SHA256

    bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73

  • SHA512

    c30768325e0478a7fa14d0c8726852dcdb5e0cfc982df4bb2477c04b223c156d58a1d1e8b1969398ca90625ada2338c78130218a70db6f6d9f00fe72ab644d85

  • SSDEEP

    12288:KqTXJtaEc4qxpRzsqIaEa8hIcQqBjAq3SR7yNAwXtVYw1G3yFmGmhUD397rP+2/I:R9tuv/D0Lqqi2Ce1OiI

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SOA_41457.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA_41457.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2916
    • 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\SOA_41457.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2528
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FvOlvyo.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2632
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FvOlvyo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp558F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2624
    • C:\Users\Admin\AppData\Local\Temp\SOA_41457.exe
      "C:\Users\Admin\AppData\Local\Temp\SOA_41457.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp558F.tmp

    Filesize

    1KB

    MD5

    30037f8ee11f6024804f49189f3a4ebf

    SHA1

    fd1e5d1009e60e1120452a977a8e6c607f7c07dd

    SHA256

    29a3a580258ecc8eb8adc19995f4b25c482d49a50e982851b6e1f7ff514b1735

    SHA512

    690236228d35b2d81ea03b107a4b045c17f52b2e1b8a52adbc9e769dfd67dc3d12a66114c08cd2895d11d34d1a5e8db57fe4f53010aee564f4f72c48a5faf2c2

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\9CEUCZDGM8LWTSWK43GE.temp

    Filesize

    7KB

    MD5

    e38416aa4fdbd2c2ba8849546c67f4e1

    SHA1

    ab9ca76f763db8320b22e44d0f4a40e60083b536

    SHA256

    c6efede3b06757e4c7ec34a1f016acf48c04cb25cc6d833ab4bf9e6e7cec4451

    SHA512

    03f194bd2131a7148cda598f57e732f6849851477b0552b0dbc5f74b1a8ad673995d6bef1a3f568589f005410a2b41fde9ad48f3d56f909e2d48f4c654faf10f

  • memory/2448-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2448-31-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2448-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2448-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2448-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2448-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2448-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2448-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2916-6-0x00000000077F0000-0x0000000007872000-memory.dmp

    Filesize

    520KB

  • memory/2916-32-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2916-0-0x000000007426E000-0x000000007426F000-memory.dmp

    Filesize

    4KB

  • memory/2916-1-0x0000000000AA0000-0x0000000000B64000-memory.dmp

    Filesize

    784KB

  • memory/2916-2-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2916-3-0x00000000009E0000-0x0000000000A80000-memory.dmp

    Filesize

    640KB

  • memory/2916-5-0x0000000000630000-0x0000000000640000-memory.dmp

    Filesize

    64KB

  • memory/2916-4-0x0000000000520000-0x000000000053A000-memory.dmp

    Filesize

    104KB