Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-09-2024 07:52

General

  • Target

    purchase order T&B19-20PO128.exe

  • Size

    834KB

  • MD5

    bdb9d54e0a75220f742b55d10f11d4ee

  • SHA1

    e8f5e71b326b4f40347d9b83b12c75074b7c1a18

  • SHA256

    4a2262967b00cd610107b403747ed727fe8ca66d26716c4cee9b7d4c6ba81db2

  • SHA512

    c8b7d7f928d5281abed33c5378ee49d57b145ada70213f4d75de70e3fd8c1a211972ac157ab35b52d278813e5ea9683677738850f2bcb1573152667329a01467

  • SSDEEP

    12288:fJzsqbYwDcoze0+G02Vg/uGsXaRVz/dHCjNLhFGcVjdnIiWyEa7gP7r9r/+ppppN:19b9G0Nm/uGsqRziZLFSiWFa7g1q

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 3 TTPs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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 WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\purchase order T&B19-20PO128.exe
    "C:\Users\Admin\AppData\Local\Temp\purchase order T&B19-20PO128.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2980
    • 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\purchase order T&B19-20PO128.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2712
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GNxLsnKfyNDAU.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2900
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GNxLsnKfyNDAU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1F1.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2916
    • C:\Users\Admin\AppData\Local\Temp\purchase order T&B19-20PO128.exe
      "C:\Users\Admin\AppData\Local\Temp\purchase order T&B19-20PO128.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB1F1.tmp

    Filesize

    1KB

    MD5

    474d1c8f6b55223aa7a10d790a3834d7

    SHA1

    8979b3e846c055c29fc6cf96529a88759704e6c2

    SHA256

    821ee7174740aac0de169024d96b6359bef35894c3cffb1a7fba1eeaea6a0b41

    SHA512

    bd44b898a697027023392795418ed495cffcc97a30d312e5e7dceed21fe328674cbc520a49e5a97ae682682e35f0d391124ea6bafc924b13c8b120186b5c6ccd

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    9acd9f780f38fa27def4ebba1cf4e0bb

    SHA1

    6ea07ce2d744310175f310e238605f9683a60994

    SHA256

    0baa4ca5ec5885915d1329d20c9ec04a79a9c4423a603c1971fa3315c730e0fc

    SHA512

    80a6d9f76b7406fe58bef8cac6865e1581f5da1eb2e0e5d86d88ade9f8bf15e42be817239c94f9b072660f29a80ecd279abeded9d160a3f5ae16e0057f122e0f

  • memory/2672-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2672-24-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2672-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2672-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2672-26-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2672-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2672-31-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2672-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2980-1-0x00000000002C0000-0x0000000000396000-memory.dmp

    Filesize

    856KB

  • memory/2980-2-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2980-0-0x00000000744BE000-0x00000000744BF000-memory.dmp

    Filesize

    4KB

  • memory/2980-7-0x00000000056F0000-0x0000000005772000-memory.dmp

    Filesize

    520KB

  • memory/2980-6-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2980-3-0x0000000004BE0000-0x0000000004C7A000-memory.dmp

    Filesize

    616KB

  • memory/2980-5-0x00000000744BE000-0x00000000744BF000-memory.dmp

    Filesize

    4KB

  • memory/2980-4-0x0000000001E70000-0x0000000001E80000-memory.dmp

    Filesize

    64KB

  • memory/2980-32-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB