Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2024 01:02

General

  • Target

    0759ad51b7c28177f3f99f055131cc3a6f51fea7cf7908da702c94c075f23bbd.exe

  • Size

    917KB

  • MD5

    e9254de10333cf644c4ff9b3bd8fdd13

  • SHA1

    6f8c9d2ca9e445cbbded55dac2253bae29db4d9a

  • SHA256

    0759ad51b7c28177f3f99f055131cc3a6f51fea7cf7908da702c94c075f23bbd

  • SHA512

    5d0373eb8ede5d23c7b7ea9d4cb769c2f127e04e096e0a0eec95bcff938d3cbfb206ab49ac87eff8f2421fb89d570f29c7d238d2437297367cbc02babf197dcb

  • SSDEEP

    24576:1IY4MROxnFi3gsxrrcI0AilFEvxHP9Fboo+:1aMioVxrrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

C2

192.168.0.23:6565

Mutex

028d5aa3082f4fb9914e6557035ef57a

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    true

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Yandex

  • 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
  • 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\0759ad51b7c28177f3f99f055131cc3a6f51fea7cf7908da702c94c075f23bbd.exe
    "C:\Users\Admin\AppData\Local\Temp\0759ad51b7c28177f3f99f055131cc3a6f51fea7cf7908da702c94c075f23bbd.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2536
    • 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:2928
      • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
        "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 2928 /protectFile
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2080
        • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
          "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 2928 "/protectFile"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1800
  • 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:1828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    917KB

    MD5

    e9254de10333cf644c4ff9b3bd8fdd13

    SHA1

    6f8c9d2ca9e445cbbded55dac2253bae29db4d9a

    SHA256

    0759ad51b7c28177f3f99f055131cc3a6f51fea7cf7908da702c94c075f23bbd

    SHA512

    5d0373eb8ede5d23c7b7ea9d4cb769c2f127e04e096e0a0eec95bcff938d3cbfb206ab49ac87eff8f2421fb89d570f29c7d238d2437297367cbc02babf197dcb

  • 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_028d5aa3082f4fb9914e6557035ef57a.dat

    Filesize

    1KB

    MD5

    45a5aaac5ce8cb29cde3df1ecbd0c0ee

    SHA1

    46c1b89c70ac13427e717d27a6345e476dac57b0

    SHA256

    65dae4ac40f1f4609a046a1631d6ad299e1e789687b459b4a5b46bf267eeab1b

    SHA512

    45e69c867f587618f222eee344a5bc898d6baf8c1bfb3063ad0c7a7c1eeb6739691936108c9f8d013d0beed3e2bdc8e582ac2e0471dd08632e48a127902a3796

  • memory/1828-64-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1828-44-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1828-41-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2080-59-0x0000000000D80000-0x0000000000D88000-memory.dmp

    Filesize

    32KB

  • memory/2536-32-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2536-5-0x0000000005590000-0x0000000005B34000-memory.dmp

    Filesize

    5.6MB

  • memory/2536-11-0x00000000062D0000-0x00000000068E8000-memory.dmp

    Filesize

    6.1MB

  • memory/2536-12-0x0000000005CD0000-0x0000000005CE2000-memory.dmp

    Filesize

    72KB

  • memory/2536-13-0x0000000005D30000-0x0000000005D6C000-memory.dmp

    Filesize

    240KB

  • memory/2536-14-0x0000000005D70000-0x0000000005DBC000-memory.dmp

    Filesize

    304KB

  • memory/2536-15-0x0000000005EF0000-0x0000000005FFA000-memory.dmp

    Filesize

    1.0MB

  • memory/2536-8-0x00000000054B0000-0x00000000054B8000-memory.dmp

    Filesize

    32KB

  • memory/2536-9-0x00000000054C0000-0x00000000054C8000-memory.dmp

    Filesize

    32KB

  • memory/2536-0-0x000000007513E000-0x000000007513F000-memory.dmp

    Filesize

    4KB

  • memory/2536-1-0x00000000005E0000-0x00000000006CA000-memory.dmp

    Filesize

    936KB

  • memory/2536-2-0x0000000001130000-0x000000000113E000-memory.dmp

    Filesize

    56KB

  • memory/2536-7-0x00000000054A0000-0x00000000054B2000-memory.dmp

    Filesize

    72KB

  • memory/2536-3-0x0000000004F30000-0x0000000004F8C000-memory.dmp

    Filesize

    368KB

  • memory/2536-4-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2536-10-0x0000000005C40000-0x0000000005CA6000-memory.dmp

    Filesize

    408KB

  • memory/2536-6-0x00000000050C0000-0x0000000005152000-memory.dmp

    Filesize

    584KB

  • memory/2928-42-0x0000000006B60000-0x0000000006D22000-memory.dmp

    Filesize

    1.8MB

  • memory/2928-43-0x00000000069C0000-0x00000000069D0000-memory.dmp

    Filesize

    64KB

  • memory/2928-39-0x0000000006810000-0x0000000006828000-memory.dmp

    Filesize

    96KB

  • memory/2928-45-0x0000000006B00000-0x0000000006B0A000-memory.dmp

    Filesize

    40KB

  • memory/2928-38-0x0000000006010000-0x0000000006028000-memory.dmp

    Filesize

    96KB

  • memory/2928-37-0x0000000005FC0000-0x000000000600E000-memory.dmp

    Filesize

    312KB

  • memory/2928-34-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2928-33-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2928-65-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2928-66-0x0000000075130000-0x00000000758E0000-memory.dmp

    Filesize

    7.7MB