Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-02-2024 22:31

General

  • Target

    932cb9ca236e1e8c6740d9db01410778.exe

  • Size

    924KB

  • MD5

    932cb9ca236e1e8c6740d9db01410778

  • SHA1

    91c9efd93a353ba556a8b0acb6ffd8557756ad37

  • SHA256

    1a4284cd084b609aa03892894e379c630505b5e4b9ccfc278138d36668f4526f

  • SHA512

    675e9b5e1aec3c260d80cc4db6acdc1c877692541004ab0db1df245c6dc7c1d5c7742a2026ea7ef9b13f81cc73aa1ff3d98ca90eb9cf097bf04c54df75327f42

  • SSDEEP

    24576:sBB4MROxnFE3WO3XrrcI0AilFEvxHPbooR:sQMiuDXrrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

Botnet

yes

C2

192.168.56.1:10134

Mutex

1b7ce9defeb04df0a5b7ca29bd8e43e6

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    true

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    Temp\OrcusWatchdog.exe

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus main payload 4 IoCs
  • Orcurs Rat Executable 5 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 3 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\932cb9ca236e1e8c6740d9db01410778.exe
    "C:\Users\Admin\AppData\Local\Temp\932cb9ca236e1e8c6740d9db01410778.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4268
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:1848
    • 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 SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3060
      • C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe
        "C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 3060
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe
          "C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 3060
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4120
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:1980
  • C:\Program Files (x86)\Orcus\Orcus.exe
    "C:\Program Files (x86)\Orcus\Orcus.exe"
    1⤵
    • Executes dropped EXE
    PID:5260

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    443KB

    MD5

    dfedea6607f921c4a15800fc81ce5e0d

    SHA1

    f14a51a203598ae9a5f59d9ae2a85e69a9ccac26

    SHA256

    be28621395c74edf5c0af24d3a6f5808e0fa2ca38fcca06d26eac4c47c04e937

    SHA512

    82625f76c04aaae708429552e7f32b36af7fc6e103919e4d19f2c30868e8f0fa7bc1908b2d18ad397c2fec906e8c000a827998d702437f09cd68dd6441092168

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

    Filesize

    526KB

    MD5

    8b4db7bc35e6dba9933240036619244b

    SHA1

    0d3009db9f3c3c84949019a5d966f3f3f700da7d

    SHA256

    b033d1b5a514f995592c4780bb5e00f969497a438acc472df9364f5310fd5b6c

    SHA512

    8d3b961324207660d61eb7b24f9a04c77c5a746d5734bf90ff317a214e0e142c820e45fbff69e7b0b82e1630bb8899721119ccce2736f2f4c3dc09369394ff9d

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

    Filesize

    456KB

    MD5

    f53994b1e5b222caf320cb9ab9b69237

    SHA1

    139335cb0e41356cebfda52d81fb053615fe05fd

    SHA256

    b34c6bd589e4b50352ddcea73a9fd963e6706b5757c600751f7937d287e33034

    SHA512

    eeb47923823c7b2dd147128580b781a1500de7d4805352f101b22da57299cec88d1bfe32f6a0832a8b734c302e7184232cd40cc0c1195e67d43d3c32e3ae3531

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

    Filesize

    871KB

    MD5

    60ccd6ec2bebb17f087d2c1b81ea691f

    SHA1

    5ffaeb207cdc75731f35522da3e04c7416785784

    SHA256

    8e8e0cdf242e832dbced5213aba9e39673fba86297e9f19084e5b86c2e1b08ba

    SHA512

    1d0476a5c777c2d75345ec6ef84ed6450764883c17e18355b2946d2ea054865e40d9d348e89dbd429f91ec9c379ed4eca0d93d509252f5ba87a92069c250de63

  • 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\Local\Temp\OrcusWatchdog.exe

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • C:\Users\Admin\AppData\Roaming\Orcus\err_1b7ce9defeb04df0a5b7ca29bd8e43e6.dat

    Filesize

    1KB

    MD5

    a69a0475d876393473d42c6965379933

    SHA1

    3cda454f2b705b0d13f42e0904903647f6791aec

    SHA256

    e2493876add1d5128f492dcdf06a1324629d9fbb0841c3419d0728a9a65e18c7

    SHA512

    794aa92fe0a5e4f890e72647ab2a8e2063312f1de28aaad982407c4edab9f7dc2914bb26cc90acb9f711629fe0c5e9e9c5a27a33bd633b460fb9e86b6574852d

  • C:\Windows\SysWOW64\WindowsInput.exe

    Filesize

    21KB

    MD5

    e6fcf516d8ed8d0d4427f86e08d0d435

    SHA1

    c7691731583ab7890086635cb7f3e4c22ca5e409

    SHA256

    8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

    SHA512

    c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

  • C:\Windows\SysWOW64\WindowsInput.exe.config

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

  • memory/1848-32-0x0000000002CC0000-0x0000000002CD2000-memory.dmp

    Filesize

    72KB

  • memory/1848-31-0x0000000000C10000-0x0000000000C1C000-memory.dmp

    Filesize

    48KB

  • memory/1848-35-0x0000000002CB0000-0x0000000002CC0000-memory.dmp

    Filesize

    64KB

  • memory/1848-34-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp

    Filesize

    10.8MB

  • memory/1848-33-0x000000001C8C0000-0x000000001C8FC000-memory.dmp

    Filesize

    240KB

  • memory/1848-39-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp

    Filesize

    10.8MB

  • memory/1980-42-0x0000000002000000-0x0000000002010000-memory.dmp

    Filesize

    64KB

  • memory/1980-41-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp

    Filesize

    10.8MB

  • memory/1980-43-0x000000001B3C0000-0x000000001B4CA000-memory.dmp

    Filesize

    1.0MB

  • memory/1980-95-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp

    Filesize

    10.8MB

  • memory/1980-96-0x0000000002000000-0x0000000002010000-memory.dmp

    Filesize

    64KB

  • memory/2860-87-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/2860-86-0x0000000000350000-0x0000000000358000-memory.dmp

    Filesize

    32KB

  • memory/2860-91-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/3060-72-0x0000000007810000-0x000000000781A000-memory.dmp

    Filesize

    40KB

  • memory/3060-62-0x0000000005A30000-0x0000000005A42000-memory.dmp

    Filesize

    72KB

  • memory/3060-98-0x0000000003340000-0x0000000003350000-memory.dmp

    Filesize

    64KB

  • memory/3060-97-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/3060-69-0x0000000007670000-0x0000000007680000-memory.dmp

    Filesize

    64KB

  • memory/3060-70-0x0000000007840000-0x0000000007A02000-memory.dmp

    Filesize

    1.8MB

  • memory/3060-67-0x00000000074B0000-0x00000000074C8000-memory.dmp

    Filesize

    96KB

  • memory/3060-65-0x00000000072D0000-0x000000000731E000-memory.dmp

    Filesize

    312KB

  • memory/3060-60-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/3060-61-0x0000000003340000-0x0000000003350000-memory.dmp

    Filesize

    64KB

  • memory/4120-92-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/4120-99-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/4268-3-0x0000000002640000-0x000000000264E000-memory.dmp

    Filesize

    56KB

  • memory/4268-11-0x0000000005FF0000-0x0000000006608000-memory.dmp

    Filesize

    6.1MB

  • memory/4268-5-0x0000000005240000-0x00000000057E4000-memory.dmp

    Filesize

    5.6MB

  • memory/4268-4-0x0000000004C30000-0x0000000004C8C000-memory.dmp

    Filesize

    368KB

  • memory/4268-6-0x0000000004DA0000-0x0000000004E32000-memory.dmp

    Filesize

    584KB

  • memory/4268-59-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/4268-0-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/4268-7-0x0000000004D80000-0x0000000004D92000-memory.dmp

    Filesize

    72KB

  • memory/4268-10-0x0000000005960000-0x00000000059C6000-memory.dmp

    Filesize

    408KB

  • memory/4268-15-0x0000000005BF0000-0x0000000005CFA000-memory.dmp

    Filesize

    1.0MB

  • memory/4268-9-0x00000000051C0000-0x00000000051C8000-memory.dmp

    Filesize

    32KB

  • memory/4268-8-0x0000000004D90000-0x0000000004D98000-memory.dmp

    Filesize

    32KB

  • memory/4268-13-0x0000000005A30000-0x0000000005A6C000-memory.dmp

    Filesize

    240KB

  • memory/4268-17-0x0000000005F80000-0x0000000005FA2000-memory.dmp

    Filesize

    136KB

  • memory/4268-12-0x00000000059D0000-0x00000000059E2000-memory.dmp

    Filesize

    72KB

  • memory/4268-14-0x0000000005A70000-0x0000000005ABC000-memory.dmp

    Filesize

    304KB

  • memory/4268-2-0x0000000004C20000-0x0000000004C30000-memory.dmp

    Filesize

    64KB

  • memory/4268-1-0x00000000001A0000-0x000000000028E000-memory.dmp

    Filesize

    952KB

  • memory/5260-94-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/5260-68-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/5260-71-0x0000000005080000-0x0000000005090000-memory.dmp

    Filesize

    64KB