Analysis

  • max time kernel
    150s
  • max time network
    156s
  • 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 01:08

General

  • Target

    e76dbf8a866a586d481874cd925ea5cc68388af1e988964982eeddda92b0256a.exe

  • Size

    2.6MB

  • MD5

    4d11477b7b25214d9953f9445b8b29d1

  • SHA1

    5b9df82e77efc3b4620d016bdf76ba1c0676f591

  • SHA256

    e76dbf8a866a586d481874cd925ea5cc68388af1e988964982eeddda92b0256a

  • SHA512

    4247ba3dad5572d54799343aed4f1cefbf81476386b58a508169ed406eb9b59fffaa9f52575931cf439e4ff30352eb728e20e50fc1b9e477b6e80fde1b640337

  • SSDEEP

    24576:SAHnh+eWsN3skA4RV1Hom2KXSmHdK3VqbE6przwKpwvEuM/SD0wugdDEl6NrL/NO:Vh+ZkldoPKiYdKr9s

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 3 IoCs
  • Checks computer location settings 2 TTPs 4 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 4 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e76dbf8a866a586d481874cd925ea5cc68388af1e988964982eeddda92b0256a.exe
    "C:\Users\Admin\AppData\Local\Temp\e76dbf8a866a586d481874cd925ea5cc68388af1e988964982eeddda92b0256a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4808
    • 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:2416
    • 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:2144
    • 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\e76dbf8a866a586d481874cd925ea5cc68388af1e988964982eeddda92b0256a.exe & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4256
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -t 0
        3⤵
        • Runs ping.exe
        PID:1064
  • 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:660
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:4160
      • 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:4524
    • 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:3588
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:552
        • 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:4464
      • 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:3720
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
            PID:1828
          • 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:960

        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

          5b6ce58c37c00a65706faebe2d5a945c

          SHA1

          015fe36a246f01ae595704af2ba3efc7c825de26

          SHA256

          297940ca84a5c91ca45126ffb720de3333ae72402aab5214820db06aee838832

          SHA512

          61dff0edd063684ffa8783abd53e2ae1ce2330a1e8ee0a6c80605b6fff61a18339810218253a927a004a3194aea3cb3a0ff6648a7c5a2a797d5bcad0dc415c03

        • memory/552-45-0x00000000738A0000-0x0000000074050000-memory.dmp

          Filesize

          7.7MB

        • memory/552-44-0x0000000004AF0000-0x0000000004B00000-memory.dmp

          Filesize

          64KB

        • memory/552-43-0x00000000738A0000-0x0000000074050000-memory.dmp

          Filesize

          7.7MB

        • memory/552-37-0x0000000000500000-0x00000000005EA000-memory.dmp

          Filesize

          936KB

        • memory/660-22-0x0000000000B80000-0x0000000000E2A000-memory.dmp

          Filesize

          2.7MB

        • memory/1828-53-0x00000000738A0000-0x0000000074050000-memory.dmp

          Filesize

          7.7MB

        • memory/1828-54-0x00000000057B0000-0x00000000057C0000-memory.dmp

          Filesize

          64KB

        • memory/2416-8-0x0000000004F90000-0x0000000004FA0000-memory.dmp

          Filesize

          64KB

        • memory/2416-14-0x0000000005150000-0x00000000051E2000-memory.dmp

          Filesize

          584KB

        • memory/2416-15-0x0000000005130000-0x0000000005142000-memory.dmp

          Filesize

          72KB

        • memory/2416-18-0x0000000005FB0000-0x0000000006172000-memory.dmp

          Filesize

          1.8MB

        • memory/2416-19-0x0000000005DD0000-0x0000000005DE0000-memory.dmp

          Filesize

          64KB

        • memory/2416-20-0x00000000062E0000-0x00000000062EA000-memory.dmp

          Filesize

          40KB

        • memory/2416-10-0x0000000005010000-0x000000000506C000-memory.dmp

          Filesize

          368KB

        • memory/2416-2-0x0000000000400000-0x00000000004EA000-memory.dmp

          Filesize

          936KB

        • memory/2416-7-0x00000000738A0000-0x0000000074050000-memory.dmp

          Filesize

          7.7MB

        • memory/2416-31-0x0000000004F90000-0x0000000004FA0000-memory.dmp

          Filesize

          64KB

        • memory/2416-17-0x0000000005580000-0x0000000005598000-memory.dmp

          Filesize

          96KB

        • memory/2416-16-0x0000000005140000-0x0000000005148000-memory.dmp

          Filesize

          32KB

        • memory/2416-27-0x00000000738A0000-0x0000000074050000-memory.dmp

          Filesize

          7.7MB

        • memory/2416-13-0x0000000005620000-0x0000000005BC4000-memory.dmp

          Filesize

          5.6MB

        • memory/2416-9-0x0000000004F30000-0x0000000004F3E000-memory.dmp

          Filesize

          56KB

        • memory/3588-36-0x0000000000B80000-0x0000000000E2A000-memory.dmp

          Filesize

          2.7MB

        • memory/3720-47-0x0000000000B80000-0x0000000000E2A000-memory.dmp

          Filesize

          2.7MB

        • memory/4160-34-0x00000000738A0000-0x0000000074050000-memory.dmp

          Filesize

          7.7MB

        • memory/4160-24-0x0000000000800000-0x00000000008EA000-memory.dmp

          Filesize

          936KB

        • memory/4160-30-0x00000000738A0000-0x0000000074050000-memory.dmp

          Filesize

          7.7MB

        • memory/4160-32-0x00000000028C0000-0x00000000028D0000-memory.dmp

          Filesize

          64KB

        • memory/4808-0-0x0000000000FA0000-0x000000000124A000-memory.dmp

          Filesize

          2.7MB

        • memory/4808-1-0x0000000001820000-0x0000000001821000-memory.dmp

          Filesize

          4KB