Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 01:40

General

  • Target

    b7684262403dfa08b0437910fbe72e02bc42ab2efb40ba9e1b7e9b291446dd5b.exe

  • Size

    915KB

  • MD5

    8161206e41902fdf459614805090f425

  • SHA1

    1b97a4f47ba33e17d3e583426731ae75b8d7b1a7

  • SHA256

    b7684262403dfa08b0437910fbe72e02bc42ab2efb40ba9e1b7e9b291446dd5b

  • SHA512

    8b4369ca1f21eaedb41e9ca816abce19a7a3c61244795862b8268fa135f6ff6abbf0121ecc71cd400e96c4ef813f4ff4bc42c5df1a469df4a0a501ed43d9ae36

  • SSDEEP

    24576:YmHR4MROxnFi3Is4rrcI0AilFEvxHPmook:7uMioN4rrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

C2

192.168.0.103:6969

Mutex

a289f5162e614f13a5cf125c6e24e771

Attributes
  • autostart_method

    TaskScheduler

  • 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.

  • Orcus family
  • Orcus main payload 1 IoCs
  • 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 4 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7684262403dfa08b0437910fbe72e02bc42ab2efb40ba9e1b7e9b291446dd5b.exe
    "C:\Users\Admin\AppData\Local\Temp\b7684262403dfa08b0437910fbe72e02bc42ab2efb40ba9e1b7e9b291446dd5b.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4508
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1204
      • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
        "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 1204 /protectFile
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4156
        • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
          "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 1204 "/protectFile"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2360
  • C:\Program Files (x86)\Orcus\Orcus.exe
    "C:\Program Files (x86)\Orcus\Orcus.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Orcus\Orcus.exe

    Filesize

    915KB

    MD5

    8161206e41902fdf459614805090f425

    SHA1

    1b97a4f47ba33e17d3e583426731ae75b8d7b1a7

    SHA256

    b7684262403dfa08b0437910fbe72e02bc42ab2efb40ba9e1b7e9b291446dd5b

    SHA512

    8b4369ca1f21eaedb41e9ca816abce19a7a3c61244795862b8268fa135f6ff6abbf0121ecc71cd400e96c4ef813f4ff4bc42c5df1a469df4a0a501ed43d9ae36

  • C:\Program Files (x86)\Orcus\Orcus.exe.config

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\OrcusWatchdog.exe.log

    Filesize

    425B

    MD5

    4eaca4566b22b01cd3bc115b9b0b2196

    SHA1

    e743e0792c19f71740416e7b3c061d9f1336bf94

    SHA256

    34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

    SHA512

    bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

  • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • C:\Users\Admin\AppData\Roaming\Orcus\err_a289f5162e614f13a5cf125c6e24e771.dat

    Filesize

    1KB

    MD5

    1e779519f1f1236398962a9dae554fc1

    SHA1

    8ecfdb1ffd7ff00e4408dc702b3107514cbc7606

    SHA256

    3cb046b038c0b8eae55ae903bef334746186c0d4c6f90dd4f78703c0bdc16194

    SHA512

    7a5e942a7d7c44ab287f789c3403f8b7dc98e8fb25ce4a8eae71489bcfc155c49c7f33f18b413637d462cd0a0d03accab56afa3932f71d188bdfeba110a2c417

  • memory/1204-40-0x00000000069D0000-0x00000000069E0000-memory.dmp

    Filesize

    64KB

  • memory/1204-44-0x0000000006F00000-0x0000000006F0A000-memory.dmp

    Filesize

    40KB

  • memory/1204-42-0x0000000006BB0000-0x0000000006D72000-memory.dmp

    Filesize

    1.8MB

  • memory/1204-39-0x0000000006850000-0x0000000006868000-memory.dmp

    Filesize

    96KB

  • memory/1204-38-0x0000000006670000-0x0000000006688000-memory.dmp

    Filesize

    96KB

  • memory/1204-37-0x0000000006000000-0x000000000604E000-memory.dmp

    Filesize

    312KB

  • memory/1204-65-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/1204-34-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/1204-32-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/1204-66-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4156-59-0x0000000000F90000-0x0000000000F98000-memory.dmp

    Filesize

    32KB

  • memory/4508-9-0x0000000005EB0000-0x0000000005EB8000-memory.dmp

    Filesize

    32KB

  • memory/4508-8-0x00000000059C0000-0x00000000059C8000-memory.dmp

    Filesize

    32KB

  • memory/4508-14-0x0000000006660000-0x00000000066AC000-memory.dmp

    Filesize

    304KB

  • memory/4508-33-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4508-13-0x0000000006620000-0x000000000665C000-memory.dmp

    Filesize

    240KB

  • memory/4508-12-0x00000000065C0000-0x00000000065D2000-memory.dmp

    Filesize

    72KB

  • memory/4508-11-0x0000000006B90000-0x00000000071A8000-memory.dmp

    Filesize

    6.1MB

  • memory/4508-10-0x0000000006500000-0x0000000006566000-memory.dmp

    Filesize

    408KB

  • memory/4508-0-0x00000000752BE000-0x00000000752BF000-memory.dmp

    Filesize

    4KB

  • memory/4508-15-0x00000000067E0000-0x00000000068EA000-memory.dmp

    Filesize

    1.0MB

  • memory/4508-7-0x00000000059B0000-0x00000000059C2000-memory.dmp

    Filesize

    72KB

  • memory/4508-1-0x0000000000D90000-0x0000000000E7A000-memory.dmp

    Filesize

    936KB

  • memory/4508-6-0x00000000059D0000-0x0000000005A62000-memory.dmp

    Filesize

    584KB

  • memory/4508-2-0x0000000003310000-0x000000000331E000-memory.dmp

    Filesize

    56KB

  • memory/4508-5-0x0000000005EE0000-0x0000000006484000-memory.dmp

    Filesize

    5.6MB

  • memory/4508-4-0x0000000005820000-0x000000000587C000-memory.dmp

    Filesize

    368KB

  • memory/4508-3-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4560-64-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4560-47-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4560-43-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB