Analysis

  • max time kernel
    143s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 01:21

General

  • Target

    055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe

  • Size

    2.6MB

  • MD5

    30e6c469c3a8bab115b69f45a6cedaf4

  • SHA1

    0e41e9e0026a75cbad35b954a53e16b8520182e5

  • SHA256

    055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda

  • SHA512

    f13de2ed7d11874092b4f3d604347a7836d676a264f89cd4eb4586c55349c4739ccfdfa96eba78dafef169ddc9d266b21896c0b92543676178ca2adf389f0362

  • SSDEEP

    24576:QAHnh+eWsN3skA4RV1Hom2KXSmHdqf0K44JzixdvW80EXLq31gEfUvWDyBFZpxxk:Hh+ZkldoPKiYdqd6M

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 2 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 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe
    "C:\Users\Admin\AppData\Local\Temp\055e00837c9cf904b584196df08e5391045ba52e4f876f136ce13e5f0a909eda.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4832
    • 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:3172
    • 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:1692
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4440 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3284
    • 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:4548
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:4328
        • 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:1536
      • C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
        C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1164
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
            PID:2340
          • 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:2364

        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

          cc7ecfad0a6ec0dc93181e07c5f8ba17

          SHA1

          72f85b7c5e9345f5d68254480625fdf93801a4dd

          SHA256

          25f1f5f64f8bd45feedaece386f293b0375ec8fb73856dffae1c42e37f0d7f55

          SHA512

          06cc30b61e99b4e9da1ba749643417047c5ae3902f518e81bd11bc2059418b05271807e2e1b1bd408a6bc8679bd5bfc01a313e0e88ed93a56d65051bbaa362c9

        • memory/1164-35-0x0000000000160000-0x000000000040A000-memory.dmp

          Filesize

          2.7MB

        • memory/2340-44-0x0000000074090000-0x0000000074840000-memory.dmp

          Filesize

          7.7MB

        • memory/2340-43-0x00000000055C0000-0x00000000055D0000-memory.dmp

          Filesize

          64KB

        • memory/2340-42-0x0000000074090000-0x0000000074840000-memory.dmp

          Filesize

          7.7MB

        • memory/3172-18-0x00000000064D0000-0x0000000006692000-memory.dmp

          Filesize

          1.8MB

        • memory/3172-21-0x0000000074090000-0x0000000074840000-memory.dmp

          Filesize

          7.7MB

        • memory/3172-14-0x00000000056C0000-0x0000000005752000-memory.dmp

          Filesize

          584KB

        • memory/3172-16-0x0000000005BA0000-0x0000000005BA8000-memory.dmp

          Filesize

          32KB

        • memory/3172-17-0x0000000006180000-0x0000000006198000-memory.dmp

          Filesize

          96KB

        • memory/3172-15-0x00000000056B0000-0x00000000056C2000-memory.dmp

          Filesize

          72KB

        • memory/3172-2-0x0000000000400000-0x00000000004EA000-memory.dmp

          Filesize

          936KB

        • memory/3172-19-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/3172-20-0x0000000006820000-0x000000000682A000-memory.dmp

          Filesize

          40KB

        • memory/3172-13-0x0000000005BD0000-0x0000000006174000-memory.dmp

          Filesize

          5.6MB

        • memory/3172-12-0x0000000005520000-0x000000000557C000-memory.dmp

          Filesize

          368KB

        • memory/3172-7-0x0000000074090000-0x0000000074840000-memory.dmp

          Filesize

          7.7MB

        • memory/3172-8-0x0000000005610000-0x0000000005620000-memory.dmp

          Filesize

          64KB

        • memory/3172-11-0x00000000054D0000-0x00000000054DE000-memory.dmp

          Filesize

          56KB

        • memory/4328-33-0x0000000074090000-0x0000000074840000-memory.dmp

          Filesize

          7.7MB

        • memory/4328-31-0x0000000005120000-0x0000000005130000-memory.dmp

          Filesize

          64KB

        • memory/4328-30-0x0000000074090000-0x0000000074840000-memory.dmp

          Filesize

          7.7MB

        • memory/4548-23-0x0000000000160000-0x000000000040A000-memory.dmp

          Filesize

          2.7MB

        • memory/4832-0-0x0000000000940000-0x0000000000BEA000-memory.dmp

          Filesize

          2.7MB

        • memory/4832-1-0x0000000000D80000-0x0000000000D81000-memory.dmp

          Filesize

          4KB