Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 05:39

General

  • Target

    New Purchase Order 568330.exe

  • Size

    942KB

  • MD5

    c4b35e33de77f7780a593f7e461aa698

  • SHA1

    a7efc3f918c32e09cd37a4ff5b06011acdde85ce

  • SHA256

    9244463fab1df23ec163c36f7f032245c64f46841f91f139fab5b4fd2b5cd25c

  • SHA512

    cf59058cfb3ad880753c6fa74a391b5c65da2297408ced83a851bdaf4e3968c9a076aa16bde4c580b88863595232f3a37cc03fbdebe1b4fdf697d1621ac085dc

  • SSDEEP

    12288:vL3+GHZno/+TPEOyJPUhZK9QW/BTIVXxhxrmxTCwrUth4U6NqdS4SWqp6GP7r9ry:vL3+GH9oFpUheQW/ByK4EA0F1q

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\New Purchase Order 568330.exe
    "C:\Users\Admin\AppData\Local\Temp\New Purchase Order 568330.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3000
    • 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\New Purchase Order 568330.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YlCLccy.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2752
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YlCLccy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp22DC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2960
    • C:\Users\Admin\AppData\Local\Temp\New Purchase Order 568330.exe
      "C:\Users\Admin\AppData\Local\Temp\New Purchase Order 568330.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp22DC.tmp

    Filesize

    1KB

    MD5

    727ab6fe36a9f72994fed161a1ef4fe3

    SHA1

    20b446e5347be961ff64d9fda332da436cf07794

    SHA256

    4ffb62fe6836b6b41283a075bc175176a33d46d03c5392ee1da05a7a777eda93

    SHA512

    bd14c4b64575073e60d7c6d2cee117a651865f655f558c88e9c7be2372e8a35ae4d122a1522115ce2578393a56c4c8418d7bebb48687460eac42597004f10fa8

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

    Filesize

    7KB

    MD5

    c9b39a7758b4d485b53575b00165e073

    SHA1

    1925530c16a1ffdd80b760f9f83aa3e5cebcc13b

    SHA256

    dfa30b33a99634023ae45e9c9f843360c9d3c851fcaf6a2f40daaeabae78adfc

    SHA512

    2ebf56254d3d1bf1fd86c496cd8402605a02c758209393d80f78a4d47b1ff4bd26d88ac4300b36240ecac3d1ac2ac3baa74d6e31d5371e28979df46695f4bebe

  • memory/2648-20-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-24-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-27-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2648-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3000-2-0x0000000073F80000-0x000000007466E000-memory.dmp

    Filesize

    6.9MB

  • memory/3000-1-0x00000000000E0000-0x00000000001D2000-memory.dmp

    Filesize

    968KB

  • memory/3000-0-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

    Filesize

    4KB

  • memory/3000-3-0x0000000073F80000-0x000000007466E000-memory.dmp

    Filesize

    6.9MB

  • memory/3000-5-0x0000000005E10000-0x0000000005E92000-memory.dmp

    Filesize

    520KB

  • memory/3000-4-0x0000000000450000-0x0000000000462000-memory.dmp

    Filesize

    72KB

  • memory/3000-31-0x0000000073F80000-0x000000007466E000-memory.dmp

    Filesize

    6.9MB