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Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/06/2024, 01:23

General

  • Target

    acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe

  • Size

    921KB

  • MD5

    ffb0b2a6d13a400e4e05908cfe0e677b

  • SHA1

    e27ecf8d074beb524219b6d9e563fc5f76cd0546

  • SHA256

    acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521

  • SHA512

    5ade0726c36bea2b02c9e9533bc166be4f3794bd78a15a814eb5be418794880c22987f434fcd51967f1c33c3550b671f257b9583121c6ef0c5f0231ccee897f3

  • SSDEEP

    24576:ZCW4MROxnF43olqrrcI0AilFEvxHjiQ8:ZCVMiGrrrcI0AilFEvxHj

Malware Config

Extracted

Family

orcus

C2

85.159.230.132:10134

Mutex

0a90560fd1de4ef0859fc02bececce78

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    true

  • install_path

    %programfiles%\svhost\svhost.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\svhost.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 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe
    "C:\Users\Admin\AppData\Local\Temp\acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3888
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:756
    • C:\Program Files\svhost\svhost.exe
      "C:\Program Files\svhost\svhost.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 SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Users\Admin\AppData\Roaming\svhost.exe
        "C:\Users\Admin\AppData\Roaming\svhost.exe" /launchSelfAndExit "C:\Program Files\svhost\svhost.exe" 2004 /protectFile
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3512
        • C:\Users\Admin\AppData\Roaming\svhost.exe
          "C:\Users\Admin\AppData\Roaming\svhost.exe" /watchProcess "C:\Program Files\svhost\svhost.exe" 2004 "/protectFile"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1496
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:3928
  • C:\Program Files\svhost\svhost.exe
    "C:\Program Files\svhost\svhost.exe"
    1⤵
    • Executes dropped EXE
    PID:4244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\svhost\svhost.exe

    Filesize

    921KB

    MD5

    ffb0b2a6d13a400e4e05908cfe0e677b

    SHA1

    e27ecf8d074beb524219b6d9e563fc5f76cd0546

    SHA256

    acbe32afbdf67ae6aa81e19f4cba285da5fec8b24163a369048a041729159521

    SHA512

    5ade0726c36bea2b02c9e9533bc166be4f3794bd78a15a814eb5be418794880c22987f434fcd51967f1c33c3550b671f257b9583121c6ef0c5f0231ccee897f3

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

    Filesize

    425B

    MD5

    4eaca4566b22b01cd3bc115b9b0b2196

    SHA1

    e743e0792c19f71740416e7b3c061d9f1336bf94

    SHA256

    34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

    SHA512

    bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

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

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • C:\Users\Admin\AppData\Roaming\svhost\err_0a90560fd1de4ef0859fc02bececce78.dat

    Filesize

    1KB

    MD5

    4f04b24bf2236ee3540cd52bb01923b6

    SHA1

    2cf382d663b7c162311bce9898a0be9335979dc8

    SHA256

    4d313e3cf260d872658373bfe2d6d4ba2880312cb995cbe497d6142a4a993236

    SHA512

    0fcac32f08101bc64ff7a7688814981d0a77fc849ba094c8e14c9bc9814ee5cc26e8f3765876ae796ee29ba7c17fae3e724ea933254af05517f7e6336235a890

  • 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/756-24-0x00000000005B0000-0x00000000005BC000-memory.dmp

    Filesize

    48KB

  • memory/756-25-0x00007FF8EDF50000-0x00007FF8EEA11000-memory.dmp

    Filesize

    10.8MB

  • memory/756-30-0x00007FF8EDF50000-0x00007FF8EEA11000-memory.dmp

    Filesize

    10.8MB

  • memory/756-29-0x00007FF8EDF50000-0x00007FF8EEA11000-memory.dmp

    Filesize

    10.8MB

  • memory/2004-50-0x000000001B900000-0x000000001B94E000-memory.dmp

    Filesize

    312KB

  • memory/2004-52-0x000000001DE20000-0x000000001DE38000-memory.dmp

    Filesize

    96KB

  • memory/2004-53-0x000000001E190000-0x000000001E352000-memory.dmp

    Filesize

    1.8MB

  • memory/2004-54-0x000000001DF50000-0x000000001DF60000-memory.dmp

    Filesize

    64KB

  • memory/3512-68-0x00000000001C0000-0x00000000001C8000-memory.dmp

    Filesize

    32KB

  • memory/3888-9-0x000000001D850000-0x000000001D95A000-memory.dmp

    Filesize

    1.0MB

  • memory/3888-4-0x00007FF8EDF50000-0x00007FF8EEA11000-memory.dmp

    Filesize

    10.8MB

  • memory/3888-47-0x00007FF8EDF50000-0x00007FF8EEA11000-memory.dmp

    Filesize

    10.8MB

  • memory/3888-3-0x0000000001720000-0x000000000172E000-memory.dmp

    Filesize

    56KB

  • memory/3888-7-0x000000001D6A0000-0x000000001D6B2000-memory.dmp

    Filesize

    72KB

  • memory/3888-8-0x000000001D700000-0x000000001D73C000-memory.dmp

    Filesize

    240KB

  • memory/3888-5-0x0000000002F10000-0x0000000002F22000-memory.dmp

    Filesize

    72KB

  • memory/3888-6-0x0000000002F00000-0x0000000002F08000-memory.dmp

    Filesize

    32KB

  • memory/3888-2-0x000000001B930000-0x000000001B98C000-memory.dmp

    Filesize

    368KB

  • memory/3888-0-0x00007FF8EDF53000-0x00007FF8EDF55000-memory.dmp

    Filesize

    8KB

  • memory/3888-1-0x0000000000D80000-0x0000000000E6C000-memory.dmp

    Filesize

    944KB