Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    27-09-2024 07:53

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:2332
    • 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:1648
    • 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:2768
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GNxLsnKfyNDAU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp254C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2796
    • 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:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp254C.tmp

    Filesize

    1KB

    MD5

    f40f9510cb511c90c5fcc916e209bc96

    SHA1

    96a0e9c63917b818dc8a409899d847efe0963669

    SHA256

    ad14d41cd12bfc0307544ff4e84b0ba101da21b5c1ff4ae0a3fb3e6bb3902bcf

    SHA512

    deb52506212b578d15fd6d77160f3d4b6b0b834fb475ec8f7406b572b04b6d5e96086edf93b615b323d76b57afb77ec4e304d08978c1a73c24ff140bcec65337

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

    Filesize

    7KB

    MD5

    a4719542823c2528004651ad57b7ea82

    SHA1

    9b2bd4c33e6770c5b1b0889bd7aeba39722f7221

    SHA256

    3cf8bbc36c18c0b7ea87a42eb1890fe313ada89d52339e86648bb19571319971

    SHA512

    45e9f6a6f2ef139eb0ea3440bc60427972d6b36aced93809f19836497fc0d3ec8c61c5a2d1a9f07de785882e10266f8a90b7e85245350f44818a9d5178e28aba

  • memory/2332-4-0x00000000004E0000-0x00000000004F0000-memory.dmp

    Filesize

    64KB

  • memory/2332-3-0x0000000004900000-0x000000000499A000-memory.dmp

    Filesize

    616KB

  • memory/2332-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/2332-5-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/2332-6-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2332-7-0x00000000057A0000-0x0000000005822000-memory.dmp

    Filesize

    520KB

  • memory/2332-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2332-1-0x0000000000A10000-0x0000000000AE6000-memory.dmp

    Filesize

    856KB

  • memory/2332-32-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2692-31-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2692-26-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-24-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-20-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB