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Analysis

  • max time kernel
    59s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    04/05/2023, 07:09

General

  • Target

    00382562524253626.exe

  • Size

    572KB

  • MD5

    89c36bdf74a2c15aef18f4725ad37a70

  • SHA1

    69fccaad6915755256b68f7f422c946dc1a69041

  • SHA256

    f72ee457b7e53954dc20479dc5ae8eb4f7ad0674235292a8c348772f875b52ab

  • SHA512

    1c2a0d20a122b7b919392842d6f08f31498bd2a84e0f7ca91dda99befa8b4b2e726ad00e5bf3b2992396c0ad99fb92a6513a9a63d26f4972c0186ba33f592292

  • SSDEEP

    12288:F3fRnGP8BW77kzFOFIwY14UjSrN78/YEQ:zMK2NGh1TSrNw/2

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\00382562524253626.exe
    "C:\Users\Admin\AppData\Local\Temp\00382562524253626.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PkICLemLl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpABDA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1108
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "{path}"
      2⤵
        PID:580
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:268

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      1KB

      MD5

      888b5ffd39bf7d11300a739952488d20

      SHA1

      fb579ca20fc3c0373d59b92d233135da5f12a614

      SHA256

      0855208d955259816c9451c81ac3010537b561892a06fb24297a5145dc34fd93

      SHA512

      f3eb1cddc7d92365de9f8073e48f123c49025c9dcd1f549a40d6dca7369f829938d08b6118b017bbb102038fad0aed23f0cde0a993b8e326d88f5a3d5180f507

    • memory/268-64-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/268-67-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/268-99-0x0000000000630000-0x0000000000670000-memory.dmp

      Filesize

      256KB

    • memory/268-73-0x0000000000630000-0x0000000000670000-memory.dmp

      Filesize

      256KB

    • memory/268-72-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/268-70-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/268-63-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/268-68-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/268-66-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/268-65-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1512-56-0x0000000000350000-0x000000000035C000-memory.dmp

      Filesize

      48KB

    • memory/1512-54-0x0000000000940000-0x00000000009D4000-memory.dmp

      Filesize

      592KB

    • memory/1512-55-0x0000000004CF0000-0x0000000004D30000-memory.dmp

      Filesize

      256KB

    • memory/1512-59-0x0000000000690000-0x00000000006D2000-memory.dmp

      Filesize

      264KB

    • memory/1512-58-0x00000000052E0000-0x000000000536C000-memory.dmp

      Filesize

      560KB

    • memory/1512-57-0x0000000004CF0000-0x0000000004D30000-memory.dmp

      Filesize

      256KB