Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-09-2024 14:22

General

  • Target

    purchaseorderTB1920PO128.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\purchaseorderTB1920PO128.exe
    "C:\Users\Admin\AppData\Local\Temp\purchaseorderTB1920PO128.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3004
    • 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\purchaseorderTB1920PO128.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1812
    • 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:1944
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GNxLsnKfyNDAU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7AE.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2660
    • C:\Users\Admin\AppData\Local\Temp\purchaseorderTB1920PO128.exe
      "C:\Users\Admin\AppData\Local\Temp\purchaseorderTB1920PO128.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7AE.tmp

    Filesize

    1KB

    MD5

    47cd27e9f5ff6e4ba4eb6e7268dea30c

    SHA1

    14a2a1c99854f89a407a030235a9eed24e79fdab

    SHA256

    a9e3ddb941116fc48b0a0e6840d9ada8bdc0931b83dad399e0cc76a42058131f

    SHA512

    ccd4892a22cdd89269a4f1cd1d33631bd8510a43abcc22f58bffcebaf732ae285d0dbb70d779cc4a12a3c6ec8ee0864f8f1f37ac092af8eab65c62fa10b63096

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

    Filesize

    7KB

    MD5

    75fa7486804c5121d89107ad570168fd

    SHA1

    44fad3b7777cd501d6a9fb78c896147598a282ac

    SHA256

    b096886d138a9f5148cc9f58c6ad2e5243beee2e38cf59d155f2da686987c5a2

    SHA512

    d6e0365a3195eeb93126c1dd212d93656bd123d47a0033676773033c9729629d8ed704235ee070a70c868e4653f3aa3067aa7f963101d6b25d166224eac24310

  • memory/1632-31-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1632-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1632-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1632-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1632-24-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1632-26-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1632-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1632-20-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3004-1-0x0000000000CA0000-0x0000000000D76000-memory.dmp

    Filesize

    856KB

  • memory/3004-2-0x0000000074120000-0x000000007480E000-memory.dmp

    Filesize

    6.9MB

  • memory/3004-0-0x000000007412E000-0x000000007412F000-memory.dmp

    Filesize

    4KB

  • memory/3004-7-0x0000000005690000-0x0000000005712000-memory.dmp

    Filesize

    520KB

  • memory/3004-6-0x0000000074120000-0x000000007480E000-memory.dmp

    Filesize

    6.9MB

  • memory/3004-3-0x0000000000C00000-0x0000000000C9A000-memory.dmp

    Filesize

    616KB

  • memory/3004-5-0x000000007412E000-0x000000007412F000-memory.dmp

    Filesize

    4KB

  • memory/3004-4-0x00000000005F0000-0x0000000000600000-memory.dmp

    Filesize

    64KB

  • memory/3004-32-0x0000000074120000-0x000000007480E000-memory.dmp

    Filesize

    6.9MB