Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-04-2024 01:52

General

  • Target

    cb49bf2372e28eedd203c223b78e1e2f9cdb8677dc55efac23aa2ce6bd355bbf.exe

  • Size

    2.6MB

  • MD5

    d8ee7afd9f98df1d92b3ad3c38f405a1

  • SHA1

    921b80872b0733073b94b3c461e0e0c901890a29

  • SHA256

    cb49bf2372e28eedd203c223b78e1e2f9cdb8677dc55efac23aa2ce6bd355bbf

  • SHA512

    ad4b2f873cbec1163d1a5f5717d43c10271d2c20adce615f0f619d5678cfa0d7f1ebe456429848a058f57cc5e09332d4247deac359e5cf55a10c6e75aa5c3839

  • SSDEEP

    24576:SAHnh+eWsN3skA4RV1Hom2KXSmHdK3VqbE6przwKpwvEuM/SD0wugdDEl6NrL/NQ:Vh+ZkldoPKiYdKr9i

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 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.

  • 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\cb49bf2372e28eedd203c223b78e1e2f9cdb8677dc55efac23aa2ce6bd355bbf.exe
    "C:\Users\Admin\AppData\Local\Temp\cb49bf2372e28eedd203c223b78e1e2f9cdb8677dc55efac23aa2ce6bd355bbf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3728
    • 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:1084
    • 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:4368
    • 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\cb49bf2372e28eedd203c223b78e1e2f9cdb8677dc55efac23aa2ce6bd355bbf.exe & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1064
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -t 0
        3⤵
        • Runs ping.exe
        PID:3280
  • 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:3280
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:4384
      • 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:1940
    • 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=3776 --field-trial-handle=2232,i,9772508353233483703,11473701862007458502,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3504
      • 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:4384
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
            PID:1676
          • 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:4400

        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

          9f41b102f39b28b4a631c2dbadfebbb2

          SHA1

          1ac8ef58dd9e12641083ffb693fab2be2901b7d1

          SHA256

          bddb778c21561f38163787e8dee90585695b2bbd83b8c53a68409825308d211b

          SHA512

          8e01fb00575e0d465689095f4ab8666813be09f0c1332de8af57e85a6852523625a5fd4b78f7ff11f278931e6bb49c9d520d12e7b87a28afb22ea02009d98e3e

        • memory/1084-18-0x0000000006910000-0x0000000006AD2000-memory.dmp

          Filesize

          1.8MB

        • memory/1084-10-0x0000000005930000-0x000000000598C000-memory.dmp

          Filesize

          368KB

        • memory/1084-20-0x0000000006C40000-0x0000000006C4A000-memory.dmp

          Filesize

          40KB

        • memory/1084-9-0x0000000003430000-0x000000000343E000-memory.dmp

          Filesize

          56KB

        • memory/1084-21-0x0000000073910000-0x00000000740C0000-memory.dmp

          Filesize

          7.7MB

        • memory/1084-13-0x0000000006050000-0x00000000065F4000-memory.dmp

          Filesize

          5.6MB

        • memory/1084-14-0x0000000005B40000-0x0000000005BD2000-memory.dmp

          Filesize

          584KB

        • memory/1084-22-0x0000000005A90000-0x0000000005AA0000-memory.dmp

          Filesize

          64KB

        • memory/1084-16-0x0000000005B20000-0x0000000005B28000-memory.dmp

          Filesize

          32KB

        • memory/1084-17-0x0000000005FE0000-0x0000000005FF8000-memory.dmp

          Filesize

          96KB

        • memory/1084-2-0x0000000000400000-0x00000000004EA000-memory.dmp

          Filesize

          936KB

        • memory/1084-19-0x0000000006040000-0x0000000006050000-memory.dmp

          Filesize

          64KB

        • memory/1084-8-0x0000000005A90000-0x0000000005AA0000-memory.dmp

          Filesize

          64KB

        • memory/1084-7-0x0000000073910000-0x00000000740C0000-memory.dmp

          Filesize

          7.7MB

        • memory/1084-15-0x0000000005A80000-0x0000000005A92000-memory.dmp

          Filesize

          72KB

        • memory/1676-43-0x0000000073910000-0x00000000740C0000-memory.dmp

          Filesize

          7.7MB

        • memory/1676-44-0x0000000004F20000-0x0000000004F30000-memory.dmp

          Filesize

          64KB

        • memory/1676-45-0x0000000073910000-0x00000000740C0000-memory.dmp

          Filesize

          7.7MB

        • memory/3280-24-0x0000000000A40000-0x0000000000CEA000-memory.dmp

          Filesize

          2.7MB

        • memory/3728-0-0x0000000000190000-0x000000000043A000-memory.dmp

          Filesize

          2.7MB

        • memory/3728-1-0x0000000002510000-0x0000000002511000-memory.dmp

          Filesize

          4KB

        • memory/4384-31-0x0000000073910000-0x00000000740C0000-memory.dmp

          Filesize

          7.7MB

        • memory/4384-32-0x00000000054F0000-0x0000000005500000-memory.dmp

          Filesize

          64KB

        • memory/4384-34-0x0000000073910000-0x00000000740C0000-memory.dmp

          Filesize

          7.7MB

        • memory/4384-36-0x0000000000A40000-0x0000000000CEA000-memory.dmp

          Filesize

          2.7MB