Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    15/05/2024, 10:34

General

  • Target

    THA-02187.pdf.exe

  • Size

    690KB

  • MD5

    ecfbc6343e85f36fda76a7b66a342475

  • SHA1

    59dd4a689d6e5fd4d07cc780a88d0b4902f369ee

  • SHA256

    3012b1cdc6d41423e99d57dac314df023f3e993fd42ee66f09553827ff616c79

  • SHA512

    2f635e264db29bdd871af05742e2695f65bc2fbad76e6736cccbed7495b1a9d5e81766a7fcd7844ec66898065a3f80d1130d48df3a3d27d3f99cc9baf19b4e2f

  • SSDEEP

    12288:EHm21680skSKSIwz4lvmi3vcso51aAO/CDebcxz/2R6iouQNvyKhkfZC614IpBK:EHp1680JSNIG4lvHcso515bN/2T45hwx

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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\THA-02187.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\THA-02187.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2548
    • 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\THA-02187.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2304
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WfOTdjb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2608
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WfOTdjb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3285.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2672
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2736

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp3285.tmp

          Filesize

          1KB

          MD5

          e8a34fed9a8cdb9b0c11d9975c686d82

          SHA1

          fb4711d9625038666a1be95fc2047773bd104143

          SHA256

          8d89eabdc55aa4b833bf23c6a616a85b9131278da29a6d83ed2b27ea004351d2

          SHA512

          fcb2049836d6dea2bd5b125804e8392bac2ba004f84a8ef8c35bd615af108a65d2d7703198a648a440c4ae4a4abc4ab28cfad102a676befdd141014f61000e72

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\7HFSGW1P3C19FMESEDD4.temp

          Filesize

          7KB

          MD5

          78af3412a1f2295ce4f7bf351773fc26

          SHA1

          90802a778e2eda729c88300deb035ac45734e8bf

          SHA256

          fff8639a7b1cc929d771876120a5322b28be7906077dec7758a5b8a9ac739874

          SHA512

          96a17f0351701b7533e4d9cc44b3b3c58314d3fa63b27c98be671dbe13834d55593998cc1d45a355fcd7fd03c4829fffabe0ef256f476a781b0d3d5d5ed37046

        • memory/2548-30-0x00000000745E0000-0x0000000074CCE000-memory.dmp

          Filesize

          6.9MB

        • memory/2548-1-0x00000000001C0000-0x0000000000272000-memory.dmp

          Filesize

          712KB

        • memory/2548-2-0x00000000745E0000-0x0000000074CCE000-memory.dmp

          Filesize

          6.9MB

        • memory/2548-3-0x00000000004A0000-0x00000000004BE000-memory.dmp

          Filesize

          120KB

        • memory/2548-4-0x00000000004C0000-0x00000000004D0000-memory.dmp

          Filesize

          64KB

        • memory/2548-5-0x00000000056F0000-0x0000000005772000-memory.dmp

          Filesize

          520KB

        • memory/2548-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

          Filesize

          4KB

        • memory/2736-18-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2736-29-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2736-28-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2736-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2736-24-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2736-22-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2736-20-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2736-27-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB