Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-04-2024 02:17

General

  • Target

    dd13f367b9b4728cf8e1da491ccc9a08c0d223b62fad80399c73b4a0fef15e11.exe

  • Size

    2.6MB

  • MD5

    4be056c45b66d118b96e41a7c4a6f318

  • SHA1

    487ecf930f74c6ab959e7bbd5d268b813450f5e6

  • SHA256

    dd13f367b9b4728cf8e1da491ccc9a08c0d223b62fad80399c73b4a0fef15e11

  • SHA512

    dbe17c2d7dc67860017ef8863e4dfa13a0da0e7c9d647f730ab78041155fcd50343e0ad3ef75d21aa61a562c91746876125b946ca059b4a5255b8df672aef8b3

  • SSDEEP

    24576:SAHnh+eWsN3skA4RV1Hom2KXSmHdK3VqbE6przwKpwvEuM/SD0wugdDEl6NrL/Nt:Vh+ZkldoPKiYdKr9T

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 1 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 3 IoCs
  • AutoIT Executable 5 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.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd13f367b9b4728cf8e1da491ccc9a08c0d223b62fad80399c73b4a0fef15e11.exe
    "C:\Users\Admin\AppData\Local\Temp\dd13f367b9b4728cf8e1da491ccc9a08c0d223b62fad80399c73b4a0fef15e11.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3880
    • 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:3720
    • 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:3392
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /k ping 127.0.0.1 -t 0 & del C:\Users\Admin\AppData\Local\Temp\dd13f367b9b4728cf8e1da491ccc9a08c0d223b62fad80399c73b4a0fef15e11.exe & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1760
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -t 0
        3⤵
        • Runs ping.exe
        PID:2120
  • 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:3700
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1744
      • 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:568
    • 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=3820 --field-trial-handle=2496,i,15897292497548307209,13920214570023230813,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:2432
      • 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:4116
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
            PID:1488
          • 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:4608
        • C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
          C:\Users\Admin\AppData\Roaming\coredpussvr\setspn.exe
          1⤵
          • Executes dropped EXE
          PID:4252

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        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

          ac6bfe4c1ed36f5a0485d061cdac2c55

          SHA1

          3fa7d3cb254392606d2f30b033b8e3ed16bf0a36

          SHA256

          bf4e2e4b4c0cb256ea7da905b0565eec2db811e9ef5873071e54cea5849737b9

          SHA512

          5806cfc4e64bfbaff1907a2711597e6d14f239d919abbbb3789c1584aeaf59e62d82ae11a4eb2f94da33f1f7a531984619d6a752fa1c98d647ccb8ae058b35f2

        • memory/1488-44-0x00000000744A0000-0x0000000074C50000-memory.dmp

          Filesize

          7.7MB

        • memory/1488-43-0x0000000005380000-0x0000000005390000-memory.dmp

          Filesize

          64KB

        • memory/1488-42-0x00000000744A0000-0x0000000074C50000-memory.dmp

          Filesize

          7.7MB

        • memory/1744-33-0x00000000744A0000-0x0000000074C50000-memory.dmp

          Filesize

          7.7MB

        • memory/1744-31-0x0000000002960000-0x0000000002970000-memory.dmp

          Filesize

          64KB

        • memory/1744-30-0x00000000744A0000-0x0000000074C50000-memory.dmp

          Filesize

          7.7MB

        • memory/3700-23-0x00000000003D0000-0x000000000067A000-memory.dmp

          Filesize

          2.7MB

        • memory/3720-10-0x0000000005360000-0x00000000053BC000-memory.dmp

          Filesize

          368KB

        • memory/3720-13-0x0000000005BD0000-0x0000000006174000-memory.dmp

          Filesize

          5.6MB

        • memory/3720-17-0x0000000005A40000-0x0000000005A58000-memory.dmp

          Filesize

          96KB

        • memory/3720-18-0x0000000006370000-0x0000000006532000-memory.dmp

          Filesize

          1.8MB

        • memory/3720-19-0x0000000006190000-0x00000000061A0000-memory.dmp

          Filesize

          64KB

        • memory/3720-20-0x00000000067E0000-0x00000000067EA000-memory.dmp

          Filesize

          40KB

        • memory/3720-21-0x00000000744A0000-0x0000000074C50000-memory.dmp

          Filesize

          7.7MB

        • memory/3720-15-0x0000000005600000-0x0000000005612000-memory.dmp

          Filesize

          72KB

        • memory/3720-14-0x0000000005510000-0x00000000055A2000-memory.dmp

          Filesize

          584KB

        • memory/3720-16-0x0000000005A20000-0x0000000005A28000-memory.dmp

          Filesize

          32KB

        • memory/3720-1-0x0000000000400000-0x00000000004EA000-memory.dmp

          Filesize

          936KB

        • memory/3720-9-0x0000000005350000-0x000000000535E000-memory.dmp

          Filesize

          56KB

        • memory/3720-7-0x00000000744A0000-0x0000000074C50000-memory.dmp

          Filesize

          7.7MB

        • memory/3720-8-0x0000000005610000-0x0000000005620000-memory.dmp

          Filesize

          64KB

        • memory/3880-3-0x00000000023D0000-0x00000000023D1000-memory.dmp

          Filesize

          4KB

        • memory/3880-0-0x0000000000650000-0x00000000008FA000-memory.dmp

          Filesize

          2.7MB

        • memory/4116-35-0x00000000003D0000-0x000000000067A000-memory.dmp

          Filesize

          2.7MB

        • memory/4252-46-0x00000000003D0000-0x000000000067A000-memory.dmp

          Filesize

          2.7MB