Analysis

  • max time kernel
    142s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    12-04-2024 01:03

General

  • Target

    b458308592c513e31bbb21c66d91c69a9875379170696629ee529a2b73505dd6.exe

  • Size

    2.6MB

  • MD5

    1f3265ce6fd5450943cfc07a7b7971c1

  • SHA1

    7df873fa54d45543871e195b9ff9491b9c4d159d

  • SHA256

    b458308592c513e31bbb21c66d91c69a9875379170696629ee529a2b73505dd6

  • SHA512

    bc8dbf287727c5f15c91cda4ce45d8ce05268cb9e0ba1e735f9b835294c7af0e12440fe87818219fe56a27122418dacf948380a48b27defca020a7387517fac4

  • SSDEEP

    24576:QAHnh+eWsN3skA4RV1Hom2KXSmHdqf0K44JzixdvW80EXLq31gEfUvWDyBFZpxxn:Hh+ZkldoPKiYdqd6f

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 6 IoCs
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b458308592c513e31bbb21c66d91c69a9875379170696629ee529a2b73505dd6.exe
    "C:\Users\Admin\AppData\Local\Temp\b458308592c513e31bbb21c66d91c69a9875379170696629ee529a2b73505dd6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2936
    • 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:2792
    • 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:2852
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {659571C1-4900-4EC1-BFAB-EA039E66A74E} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
      C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1748
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:2008
        • 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
          3⤵
          • Creates scheduled task(s)
          PID:2192
      • C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
        C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:596
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
            PID:540
          • 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
            3⤵
            • Creates scheduled task(s)
            PID:840

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        2.6MB

        MD5

        3a04d9108713722bff0fc831f80a898a

        SHA1

        7a8a5964c9cb4498914c8c2ab7b787e48caa5513

        SHA256

        b5742d934342485496ce462c5a10c6ac4ca5e83480f1c733ebd5c00adc1dfaf0

        SHA512

        bf74acad2082ca7273f1a9ad53a86c80f83df9211beb903086bc99c8e1fb00efc43ffacc836fef09a4877caa3b9a3f577835d931854b28acfcb90b9e3fd1c051

      • memory/540-52-0x0000000073A90000-0x000000007417E000-memory.dmp

        Filesize

        6.9MB

      • memory/540-51-0x00000000048D0000-0x0000000004910000-memory.dmp

        Filesize

        256KB

      • memory/540-50-0x0000000073A90000-0x000000007417E000-memory.dmp

        Filesize

        6.9MB

      • memory/540-48-0x0000000000090000-0x000000000017A000-memory.dmp

        Filesize

        936KB

      • memory/540-49-0x0000000000090000-0x000000000017A000-memory.dmp

        Filesize

        936KB

      • memory/540-42-0x0000000000090000-0x000000000017A000-memory.dmp

        Filesize

        936KB

      • memory/596-39-0x0000000000090000-0x000000000033A000-memory.dmp

        Filesize

        2.7MB

      • memory/1748-25-0x0000000001130000-0x00000000013DA000-memory.dmp

        Filesize

        2.7MB

      • memory/2008-37-0x0000000073A90000-0x000000007417E000-memory.dmp

        Filesize

        6.9MB

      • memory/2008-36-0x0000000004B60000-0x0000000004BA0000-memory.dmp

        Filesize

        256KB

      • memory/2008-35-0x0000000073A90000-0x000000007417E000-memory.dmp

        Filesize

        6.9MB

      • memory/2792-13-0x0000000073A90000-0x000000007417E000-memory.dmp

        Filesize

        6.9MB

      • memory/2792-15-0x0000000004A30000-0x0000000004A70000-memory.dmp

        Filesize

        256KB

      • memory/2792-20-0x00000000041E0000-0x00000000041F0000-memory.dmp

        Filesize

        64KB

      • memory/2792-21-0x0000000073A90000-0x000000007417E000-memory.dmp

        Filesize

        6.9MB

      • memory/2792-22-0x0000000004A30000-0x0000000004A70000-memory.dmp

        Filesize

        256KB

      • memory/2792-18-0x0000000000A60000-0x0000000000A68000-memory.dmp

        Filesize

        32KB

      • memory/2792-17-0x00000000008B0000-0x00000000008C2000-memory.dmp

        Filesize

        72KB

      • memory/2792-16-0x00000000009C0000-0x0000000000A1C000-memory.dmp

        Filesize

        368KB

      • memory/2792-14-0x00000000005F0000-0x00000000005FE000-memory.dmp

        Filesize

        56KB

      • memory/2792-19-0x0000000002050000-0x0000000002068000-memory.dmp

        Filesize

        96KB

      • memory/2792-2-0x0000000000400000-0x00000000004EA000-memory.dmp

        Filesize

        936KB

      • memory/2792-10-0x0000000000400000-0x00000000004EA000-memory.dmp

        Filesize

        936KB

      • memory/2792-9-0x0000000000400000-0x00000000004EA000-memory.dmp

        Filesize

        936KB

      • memory/2792-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2792-3-0x0000000000400000-0x00000000004EA000-memory.dmp

        Filesize

        936KB

      • memory/2936-0-0x0000000000B00000-0x0000000000DAA000-memory.dmp

        Filesize

        2.7MB

      • memory/2936-1-0x00000000005E0000-0x00000000005E1000-memory.dmp

        Filesize

        4KB