Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-04-2024 02:29

General

  • Target

    b5af8b415653f7c927c09d93ae038301fa5bd121f455f6efd006c40c56b0f5a7.exe

  • Size

    2.6MB

  • MD5

    1d1e084394ccbc02b21db7b58b355c15

  • SHA1

    d94ed25a49b02029b839d75cb95c65c242fc9a1e

  • SHA256

    b5af8b415653f7c927c09d93ae038301fa5bd121f455f6efd006c40c56b0f5a7

  • SHA512

    ab1b2adc4c535fc6d6ec020861005cb6ab98ca555accef3d617d206677464b5e96576919fffb67c06c3972d331a0f7482b4e78b325bf2d388f72ee0b4c035dde

  • SSDEEP

    24576:QAHnh+eWsN3skA4RV1Hom2KXSmHdqf0K44JzixdvW80EXLq31gEfUvWDyBFZpxxj:Hh+ZkldoPKiYdqd6b

Malware Config

Extracted

Family

orcus

Botnet

ligeon

C2

ligeon.ddns.net:1606

Mutex

b98fb09a59c24a81b9d17a55ccf2c036

Attributes
  • autostart_method

    Disable

  • enable_keylogger

    true

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\OrcusWatchdog.exe

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcurs Rat Executable 3 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5af8b415653f7c927c09d93ae038301fa5bd121f455f6efd006c40c56b0f5a7.exe
    "C:\Users\Admin\AppData\Local\Temp\b5af8b415653f7c927c09d93ae038301fa5bd121f455f6efd006c40c56b0f5a7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4240
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4888
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F
      2⤵
      • Creates scheduled task(s)
      PID:4332
  • C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
    C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1920
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F
        2⤵
        • Creates scheduled task(s)
        PID:3420
    • C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
      C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4820
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:4348
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\SysWOW64\schtasks.exe" /create /tn sfc /tr "C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe" /sc minute /mo 1 /F
          2⤵
          • Creates scheduled task(s)
          PID:1900

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegSvcs.exe.log

        Filesize

        1KB

        MD5

        0672db2ef13237d5cb85075ff4915942

        SHA1

        ad8b4d3eb5e40791c47d48b22e273486f25f663f

        SHA256

        0a933408890369b5a178f9c30aa93d2c94f425650815cf8e8310de4e90a3b519

        SHA512

        84ad10ba5b695567d33a52f786405a5544aa49d8d23631ba9edf3afa877c5dbd81570d15bcf74bce5d9fb1afad2117d0a4ef913b396c0d923afefe615619c84b

      • C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe

        Filesize

        2.6MB

        MD5

        7ed9bd95fe21436834356747b18d7f5a

        SHA1

        f83ee972d9e6e0ba8832c2f33e44814fba74e3b3

        SHA256

        019033c948072582902c91cf26a89775182fb80a9211bfe55be5cbedc23d6e3c

        SHA512

        eed5c9209142a80354aed8a945c67922e26f5f4c8f7e4ccb2db6c0185a51d699a7493cd356bc0dc204b7f162bfb7345f0b4ca3076bb9c11a019295a41f8c7c04

      • memory/1920-34-0x0000000073D80000-0x0000000074530000-memory.dmp

        Filesize

        7.7MB

      • memory/1920-32-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

        Filesize

        64KB

      • memory/1920-31-0x0000000073D80000-0x0000000074530000-memory.dmp

        Filesize

        7.7MB

      • memory/4240-1-0x0000000001990000-0x0000000001991000-memory.dmp

        Filesize

        4KB

      • memory/4240-0-0x0000000000E20000-0x00000000010CA000-memory.dmp

        Filesize

        2.7MB

      • memory/4348-45-0x0000000073D80000-0x0000000074530000-memory.dmp

        Filesize

        7.7MB

      • memory/4348-44-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

        Filesize

        64KB

      • memory/4348-43-0x0000000073D80000-0x0000000074530000-memory.dmp

        Filesize

        7.7MB

      • memory/4348-37-0x0000000000760000-0x000000000084A000-memory.dmp

        Filesize

        936KB

      • memory/4820-36-0x0000000000A90000-0x0000000000D3A000-memory.dmp

        Filesize

        2.7MB

      • memory/4888-11-0x0000000005750000-0x0000000005CF4000-memory.dmp

        Filesize

        5.6MB

      • memory/4888-17-0x0000000005690000-0x00000000056A8000-memory.dmp

        Filesize

        96KB

      • memory/4888-20-0x00000000063F0000-0x00000000063FA000-memory.dmp

        Filesize

        40KB

      • memory/4888-21-0x0000000073D80000-0x0000000074530000-memory.dmp

        Filesize

        7.7MB

      • memory/4888-22-0x00000000050E0000-0x00000000050F0000-memory.dmp

        Filesize

        64KB

      • memory/4888-18-0x00000000060D0000-0x0000000006292000-memory.dmp

        Filesize

        1.8MB

      • memory/4888-2-0x0000000000400000-0x00000000004EA000-memory.dmp

        Filesize

        936KB

      • memory/4888-19-0x0000000005730000-0x0000000005740000-memory.dmp

        Filesize

        64KB

      • memory/4888-16-0x0000000005250000-0x0000000005258000-memory.dmp

        Filesize

        32KB

      • memory/4888-15-0x0000000005240000-0x0000000005252000-memory.dmp

        Filesize

        72KB

      • memory/4888-14-0x0000000005260000-0x00000000052F2000-memory.dmp

        Filesize

        584KB

      • memory/4888-10-0x0000000005140000-0x000000000519C000-memory.dmp

        Filesize

        368KB

      • memory/4888-9-0x0000000002AC0000-0x0000000002ACE000-memory.dmp

        Filesize

        56KB

      • memory/4888-7-0x0000000073D80000-0x0000000074530000-memory.dmp

        Filesize

        7.7MB

      • memory/4888-8-0x00000000050E0000-0x00000000050F0000-memory.dmp

        Filesize

        64KB

      • memory/5072-24-0x0000000000A90000-0x0000000000D3A000-memory.dmp

        Filesize

        2.7MB