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 02:08

General

  • Target

    b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe

  • Size

    2.6MB

  • MD5

    33f3bbcd5ed87efe2c67e22c39f9d505

  • SHA1

    897bc53886621e3ee4c327d27aa8f08e03c43c40

  • SHA256

    b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0

  • SHA512

    b0da4a17049a0d37daf0bb505be38ee0e37cb9a5efc46293d9535e3e36ad8f5956e650429409e10d2269f850f4071727c90e66176f708de9aeff27c1f1dd3e4a

  • SSDEEP

    24576:QAHnh+eWsN3skA4RV1Hom2KXSmHdqf0K44JzixdvW80EXLq31gEfUvWDyBFZpxxZ:Hh+ZkldoPKiYdqd6x

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 2 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\b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe
    "C:\Users\Admin\AppData\Local\Temp\b3288fd1f6b8d44211066cfe23e459fb50be360bc83b7b9fa29cc2da2d5811e0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4900
    • 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:4036
    • 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:2840
  • 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:2956
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:2344
      • 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:1516
    • 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:2088
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:3348
        • 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:2928

      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

        43e5ec1389908d90671b7429756e95cf

        SHA1

        f1c3bc9c7b93ef629500250c45e6bf9238daedff

        SHA256

        b47ee79621e1da6add4612c6c0ee1de91a8b0dd71b8aed3b27a64e8c834542d8

        SHA512

        65aed48ddafc22773ec465eb7eb1ec1c3dea0e3bcb4ca1f61238868838a2333bcc4ae82bd4a02b4e8f1c63a47511cc304cfe1f09de060d436dff38adab3b7c91

      • memory/2088-36-0x0000000000E50000-0x00000000010FA000-memory.dmp

        Filesize

        2.7MB

      • memory/2344-34-0x0000000073A30000-0x00000000741E0000-memory.dmp

        Filesize

        7.7MB

      • memory/2344-31-0x0000000073A30000-0x00000000741E0000-memory.dmp

        Filesize

        7.7MB

      • memory/2344-32-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

        Filesize

        64KB

      • memory/2956-24-0x0000000000E50000-0x00000000010FA000-memory.dmp

        Filesize

        2.7MB

      • memory/3348-45-0x0000000073A30000-0x00000000741E0000-memory.dmp

        Filesize

        7.7MB

      • memory/3348-44-0x0000000004D40000-0x0000000004D50000-memory.dmp

        Filesize

        64KB

      • memory/3348-43-0x0000000073A30000-0x00000000741E0000-memory.dmp

        Filesize

        7.7MB

      • memory/3348-37-0x0000000000610000-0x00000000006FA000-memory.dmp

        Filesize

        936KB

      • memory/4036-13-0x00000000058D0000-0x0000000005E74000-memory.dmp

        Filesize

        5.6MB

      • memory/4036-14-0x0000000005320000-0x00000000053B2000-memory.dmp

        Filesize

        584KB

      • memory/4036-19-0x00000000058B0000-0x00000000058C0000-memory.dmp

        Filesize

        64KB

      • memory/4036-20-0x0000000006120000-0x000000000612A000-memory.dmp

        Filesize

        40KB

      • memory/4036-21-0x0000000073A30000-0x00000000741E0000-memory.dmp

        Filesize

        7.7MB

      • memory/4036-22-0x0000000005310000-0x0000000005320000-memory.dmp

        Filesize

        64KB

      • memory/4036-17-0x0000000005810000-0x0000000005828000-memory.dmp

        Filesize

        96KB

      • memory/4036-16-0x0000000005300000-0x0000000005308000-memory.dmp

        Filesize

        32KB

      • memory/4036-15-0x00000000052F0000-0x0000000005302000-memory.dmp

        Filesize

        72KB

      • memory/4036-18-0x0000000006150000-0x0000000006312000-memory.dmp

        Filesize

        1.8MB

      • memory/4036-1-0x0000000000400000-0x00000000004EA000-memory.dmp

        Filesize

        936KB

      • memory/4036-10-0x0000000005190000-0x00000000051EC000-memory.dmp

        Filesize

        368KB

      • memory/4036-9-0x0000000000ED0000-0x0000000000EDE000-memory.dmp

        Filesize

        56KB

      • memory/4036-8-0x0000000005310000-0x0000000005320000-memory.dmp

        Filesize

        64KB

      • memory/4036-7-0x0000000073A30000-0x00000000741E0000-memory.dmp

        Filesize

        7.7MB

      • memory/4900-4-0x0000000003FE0000-0x0000000003FE1000-memory.dmp

        Filesize

        4KB

      • memory/4900-0-0x00000000001B0000-0x000000000045A000-memory.dmp

        Filesize

        2.7MB