Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-05-2024 01:12

General

  • Target

    4ee61198bf5742ab2497f9034e73299052e4cf8d6f04ef72393f07ff8ca27dc0.exe

  • Size

    917KB

  • MD5

    ee128fdc0c14610f0e94610332c8f189

  • SHA1

    d29af3db2e278549e22fa7b8bd939b581b34150c

  • SHA256

    4ee61198bf5742ab2497f9034e73299052e4cf8d6f04ef72393f07ff8ca27dc0

  • SHA512

    884fd9316c51a91c2fba4222bfed7a4667fffc056715cda7591d49ab26e2c161365451123b667ab6fe4a1269b139aeba6f02ee460173fda7b8cee8e10918e9fd

  • SSDEEP

    24576:2CC4MROxnFi33snrrcI0AilFEvxHPDooW:2KMiocnrrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

C2

live-promotions.gl.at.ply.gg:51701

Mutex

3c04931e3f454403ae52495677e37b6f

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    false

  • 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 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ee61198bf5742ab2497f9034e73299052e4cf8d6f04ef72393f07ff8ca27dc0.exe
    "C:\Users\Admin\AppData\Local\Temp\4ee61198bf5742ab2497f9034e73299052e4cf8d6f04ef72393f07ff8ca27dc0.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4424
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3704
      • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
        "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 3704 /protectFile
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3204
        • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
          "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 3704 "/protectFile"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2500
  • C:\Program Files (x86)\Orcus\Orcus.exe
    "C:\Program Files (x86)\Orcus\Orcus.exe"
    1⤵
    • Executes dropped EXE
    PID:1820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    917KB

    MD5

    ee128fdc0c14610f0e94610332c8f189

    SHA1

    d29af3db2e278549e22fa7b8bd939b581b34150c

    SHA256

    4ee61198bf5742ab2497f9034e73299052e4cf8d6f04ef72393f07ff8ca27dc0

    SHA512

    884fd9316c51a91c2fba4222bfed7a4667fffc056715cda7591d49ab26e2c161365451123b667ab6fe4a1269b139aeba6f02ee460173fda7b8cee8e10918e9fd

  • 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_3c04931e3f454403ae52495677e37b6f.dat

    Filesize

    1KB

    MD5

    7dcb3cd9e246bd465dd87833d0ce2950

    SHA1

    e96b8ff8d547192b0e53131ae3176e04ec6bf988

    SHA256

    71bd5fd4c97f6be5361dd23d0a455af33e5666b96b6a25f4bd985a80a1817824

    SHA512

    d1ea6f4398055a4512a4d18b0683ee67a72efdb4ad8ceaf84dbcd8fde4e86a12a352c9c684d4db632ee89bf0b1a02958080ef683fc5d2fb3c2a2559e5743d3ef

  • memory/1820-40-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/1820-42-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/1820-62-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/3204-57-0x0000000000DF0000-0x0000000000DF8000-memory.dmp

    Filesize

    32KB

  • memory/3704-43-0x0000000007920000-0x000000000792A000-memory.dmp

    Filesize

    40KB

  • memory/3704-33-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/3704-64-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/3704-63-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/3704-41-0x0000000007370000-0x0000000007380000-memory.dmp

    Filesize

    64KB

  • memory/3704-38-0x00000000071C0000-0x00000000071D8000-memory.dmp

    Filesize

    96KB

  • memory/3704-37-0x00000000069C0000-0x0000000006A0E000-memory.dmp

    Filesize

    312KB

  • memory/3704-34-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-5-0x0000000005A30000-0x0000000005FD4000-memory.dmp

    Filesize

    5.6MB

  • memory/4424-9-0x00000000057C0000-0x00000000057C8000-memory.dmp

    Filesize

    32KB

  • memory/4424-4-0x0000000005140000-0x000000000519C000-memory.dmp

    Filesize

    368KB

  • memory/4424-10-0x0000000005850000-0x00000000058B6000-memory.dmp

    Filesize

    408KB

  • memory/4424-3-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-15-0x00000000060F0000-0x00000000061FA000-memory.dmp

    Filesize

    1.0MB

  • memory/4424-14-0x00000000059C0000-0x0000000005A0C000-memory.dmp

    Filesize

    304KB

  • memory/4424-0-0x000000007539E000-0x000000007539F000-memory.dmp

    Filesize

    4KB

  • memory/4424-13-0x0000000005980000-0x00000000059BC000-memory.dmp

    Filesize

    240KB

  • memory/4424-32-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-6-0x00000000052A0000-0x0000000005332000-memory.dmp

    Filesize

    584KB

  • memory/4424-2-0x0000000002A30000-0x0000000002A3E000-memory.dmp

    Filesize

    56KB

  • memory/4424-8-0x0000000005460000-0x0000000005468000-memory.dmp

    Filesize

    32KB

  • memory/4424-1-0x00000000007E0000-0x00000000008CA000-memory.dmp

    Filesize

    936KB

  • memory/4424-7-0x0000000005450000-0x0000000005462000-memory.dmp

    Filesize

    72KB

  • memory/4424-12-0x0000000005920000-0x0000000005932000-memory.dmp

    Filesize

    72KB

  • memory/4424-11-0x0000000006600000-0x0000000006C18000-memory.dmp

    Filesize

    6.1MB