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Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2023, 01:47

General

  • Target

    38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574.exe

  • Size

    914KB

  • MD5

    c83c800b6210ffe0eb25618375aa0bb9

  • SHA1

    9cd93773f909fa3b026e6f0de4defbed6cccd3f1

  • SHA256

    38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574

  • SHA512

    2dcd2a784f9ae7e89effc4c3171d8b3fd8c9c7bc48f75ab62292febbe7082b841b0885d19fcca14da8e722236e603c299ae729fc43468ec9851a2d1b7e7ad1d9

  • SSDEEP

    24576:8W64MROxnFD3orXYf1rrcI0AilFEvxHPSooX:8KMiJhrrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

C2

127.0.0.1:10134

Mutex

0bbaa7985ac942c388c42af97c947323

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 5 IoCs
  • Orcurs Rat Executable 7 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 3 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 WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574.exe
    "C:\Users\Admin\AppData\Local\Temp\38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2396
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • 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:3044
      • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
        "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 3044 /protectFile
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1560
        • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
          "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 3044 "/protectFile"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2516
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:2776
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {715FD43C-F689-4AA8-8B26-5BEE21EE66F9} S-1-5-21-2952504676-3105837840-1406404655-1000:URUOZWGF\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      PID:2600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    914KB

    MD5

    c83c800b6210ffe0eb25618375aa0bb9

    SHA1

    9cd93773f909fa3b026e6f0de4defbed6cccd3f1

    SHA256

    38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574

    SHA512

    2dcd2a784f9ae7e89effc4c3171d8b3fd8c9c7bc48f75ab62292febbe7082b841b0885d19fcca14da8e722236e603c299ae729fc43468ec9851a2d1b7e7ad1d9

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

    Filesize

    914KB

    MD5

    c83c800b6210ffe0eb25618375aa0bb9

    SHA1

    9cd93773f909fa3b026e6f0de4defbed6cccd3f1

    SHA256

    38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574

    SHA512

    2dcd2a784f9ae7e89effc4c3171d8b3fd8c9c7bc48f75ab62292febbe7082b841b0885d19fcca14da8e722236e603c299ae729fc43468ec9851a2d1b7e7ad1d9

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

    Filesize

    914KB

    MD5

    c83c800b6210ffe0eb25618375aa0bb9

    SHA1

    9cd93773f909fa3b026e6f0de4defbed6cccd3f1

    SHA256

    38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574

    SHA512

    2dcd2a784f9ae7e89effc4c3171d8b3fd8c9c7bc48f75ab62292febbe7082b841b0885d19fcca14da8e722236e603c299ae729fc43468ec9851a2d1b7e7ad1d9

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

    Filesize

    914KB

    MD5

    c83c800b6210ffe0eb25618375aa0bb9

    SHA1

    9cd93773f909fa3b026e6f0de4defbed6cccd3f1

    SHA256

    38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574

    SHA512

    2dcd2a784f9ae7e89effc4c3171d8b3fd8c9c7bc48f75ab62292febbe7082b841b0885d19fcca14da8e722236e603c299ae729fc43468ec9851a2d1b7e7ad1d9

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

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

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

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

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

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

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

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

  • C:\Windows\SysWOW64\WindowsInput.exe

    Filesize

    21KB

    MD5

    e6fcf516d8ed8d0d4427f86e08d0d435

    SHA1

    c7691731583ab7890086635cb7f3e4c22ca5e409

    SHA256

    8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

    SHA512

    c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

  • C:\Windows\SysWOW64\WindowsInput.exe

    Filesize

    21KB

    MD5

    e6fcf516d8ed8d0d4427f86e08d0d435

    SHA1

    c7691731583ab7890086635cb7f3e4c22ca5e409

    SHA256

    8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

    SHA512

    c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

  • 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

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

    Filesize

    914KB

    MD5

    c83c800b6210ffe0eb25618375aa0bb9

    SHA1

    9cd93773f909fa3b026e6f0de4defbed6cccd3f1

    SHA256

    38e5164dc738a0d680f4dba34a790b62dc7ef0750b63494b41a9d3efbad40574

    SHA512

    2dcd2a784f9ae7e89effc4c3171d8b3fd8c9c7bc48f75ab62292febbe7082b841b0885d19fcca14da8e722236e603c299ae729fc43468ec9851a2d1b7e7ad1d9

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

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • \Windows\SysWOW64\WindowsInput.exe

    Filesize

    21KB

    MD5

    e6fcf516d8ed8d0d4427f86e08d0d435

    SHA1

    c7691731583ab7890086635cb7f3e4c22ca5e409

    SHA256

    8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

    SHA512

    c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

  • memory/1560-54-0x0000000001360000-0x0000000001368000-memory.dmp

    Filesize

    32KB

  • memory/1560-55-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/1560-58-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2184-0-0x0000000001310000-0x00000000013FA000-memory.dmp

    Filesize

    936KB

  • memory/2184-5-0x0000000000980000-0x0000000000992000-memory.dmp

    Filesize

    72KB

  • memory/2184-4-0x0000000000500000-0x000000000055C000-memory.dmp

    Filesize

    368KB

  • memory/2184-3-0x0000000000470000-0x000000000047E000-memory.dmp

    Filesize

    56KB

  • memory/2184-34-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2184-2-0x0000000004BB0000-0x0000000004BF0000-memory.dmp

    Filesize

    256KB

  • memory/2184-1-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2396-16-0x000000001AC10000-0x000000001AC90000-memory.dmp

    Filesize

    512KB

  • memory/2396-19-0x000007FEF5550000-0x000007FEF5F3C000-memory.dmp

    Filesize

    9.9MB

  • memory/2396-14-0x0000000001320000-0x000000000132C000-memory.dmp

    Filesize

    48KB

  • memory/2396-15-0x000007FEF5550000-0x000007FEF5F3C000-memory.dmp

    Filesize

    9.9MB

  • memory/2516-64-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2516-57-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2600-43-0x0000000004A70000-0x0000000004AB0000-memory.dmp

    Filesize

    256KB

  • memory/2600-42-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2600-60-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2776-22-0x00000000194F0000-0x0000000019570000-memory.dmp

    Filesize

    512KB

  • memory/2776-21-0x000007FEF4B60000-0x000007FEF554C000-memory.dmp

    Filesize

    9.9MB

  • memory/2776-59-0x000007FEF4B60000-0x000007FEF554C000-memory.dmp

    Filesize

    9.9MB

  • memory/3044-37-0x0000000000650000-0x0000000000662000-memory.dmp

    Filesize

    72KB

  • memory/3044-38-0x0000000000760000-0x00000000007AE000-memory.dmp

    Filesize

    312KB

  • memory/3044-41-0x0000000000910000-0x0000000000920000-memory.dmp

    Filesize

    64KB

  • memory/3044-35-0x00000000001D0000-0x00000000002BA000-memory.dmp

    Filesize

    936KB

  • memory/3044-33-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/3044-45-0x00000000047B0000-0x00000000047F0000-memory.dmp

    Filesize

    256KB

  • memory/3044-36-0x00000000047B0000-0x00000000047F0000-memory.dmp

    Filesize

    256KB

  • memory/3044-61-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/3044-62-0x00000000047B0000-0x00000000047F0000-memory.dmp

    Filesize

    256KB

  • memory/3044-63-0x00000000047B0000-0x00000000047F0000-memory.dmp

    Filesize

    256KB

  • memory/3044-39-0x00000000008E0000-0x00000000008F8000-memory.dmp

    Filesize

    96KB