Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-05-2021 17:36

General

  • Target

    658CB5F3BD26B13BB619C625501D7283.exe

  • Size

    907KB

  • MD5

    658cb5f3bd26b13bb619c625501d7283

  • SHA1

    55ed61f7bd39147201a022ec3f83edfc8c58e002

  • SHA256

    88f3320f4bcd533c568b9ba53205deb1b0e430c3c32a1dfa0bfded03851114a8

  • SHA512

    d932c5b58120b466ae3451ececbb9fc323603d70b728294dce88e8b911c38dd65f0a81ec8fbba7f4c7dd2b9f9f3304de318a5297703e1d94204c89c3be55ad91

Malware Config

Extracted

Family

orcus

Botnet

People

C2

4.tcp.ngrok.io:16788

Mutex

55c8e5e3f5fe4794a3ef3a55735c66ad

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    true

  • install_path

    %appdata%\MultiRunner\MultiRunner.exe

  • reconnect_delay

    10000

  • registry_keyname

    MutliRunner

  • taskscheduler_taskname

    MultiRunner

  • watchdog_path

    AppData\MultiHelper.exe

Signatures

  • Orcus

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

  • Orcus Main Payload 3 IoCs
  • Orcurs Rat Executable 3 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\658CB5F3BD26B13BB619C625501D7283.exe
    "C:\Users\Admin\AppData\Local\Temp\658CB5F3BD26B13BB619C625501D7283.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Users\Admin\AppData\Roaming\MultiRunner\MultiRunner.exe
      "C:\Users\Admin\AppData\Roaming\MultiRunner\MultiRunner.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1528
      • C:\Users\Admin\AppData\Roaming\MultiHelper.exe
        "C:\Users\Admin\AppData\Roaming\MultiHelper.exe" /launchSelfAndExit "C:\Users\Admin\AppData\Roaming\MultiRunner\MultiRunner.exe" 1528 /protectFile
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Users\Admin\AppData\Roaming\MultiHelper.exe
          "C:\Users\Admin\AppData\Roaming\MultiHelper.exe" /watchProcess "C:\Users\Admin\AppData\Roaming\MultiRunner\MultiRunner.exe" 1528 "/protectFile"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

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

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

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

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

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

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

    MD5

    658cb5f3bd26b13bb619c625501d7283

    SHA1

    55ed61f7bd39147201a022ec3f83edfc8c58e002

    SHA256

    88f3320f4bcd533c568b9ba53205deb1b0e430c3c32a1dfa0bfded03851114a8

    SHA512

    d932c5b58120b466ae3451ececbb9fc323603d70b728294dce88e8b911c38dd65f0a81ec8fbba7f4c7dd2b9f9f3304de318a5297703e1d94204c89c3be55ad91

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

    MD5

    658cb5f3bd26b13bb619c625501d7283

    SHA1

    55ed61f7bd39147201a022ec3f83edfc8c58e002

    SHA256

    88f3320f4bcd533c568b9ba53205deb1b0e430c3c32a1dfa0bfded03851114a8

    SHA512

    d932c5b58120b466ae3451ececbb9fc323603d70b728294dce88e8b911c38dd65f0a81ec8fbba7f4c7dd2b9f9f3304de318a5297703e1d94204c89c3be55ad91

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

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

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

    MD5

    658cb5f3bd26b13bb619c625501d7283

    SHA1

    55ed61f7bd39147201a022ec3f83edfc8c58e002

    SHA256

    88f3320f4bcd533c568b9ba53205deb1b0e430c3c32a1dfa0bfded03851114a8

    SHA512

    d932c5b58120b466ae3451ececbb9fc323603d70b728294dce88e8b911c38dd65f0a81ec8fbba7f4c7dd2b9f9f3304de318a5297703e1d94204c89c3be55ad91

  • memory/944-86-0x0000000000000000-mapping.dmp

  • memory/1000-84-0x0000000000EC0000-0x0000000000EC1000-memory.dmp

    Filesize

    4KB

  • memory/1000-80-0x0000000000000000-mapping.dmp

  • memory/1528-66-0x0000000000000000-mapping.dmp

  • memory/1528-77-0x0000000000570000-0x0000000000585000-memory.dmp

    Filesize

    84KB

  • memory/1528-78-0x00000000007E0000-0x00000000007EC000-memory.dmp

    Filesize

    48KB

  • memory/1528-76-0x00000000046D0000-0x0000000004718000-memory.dmp

    Filesize

    288KB

  • memory/1528-74-0x0000000004770000-0x0000000004771000-memory.dmp

    Filesize

    4KB

  • memory/1528-70-0x0000000000A90000-0x0000000000A91000-memory.dmp

    Filesize

    4KB

  • memory/1528-90-0x0000000004775000-0x0000000004786000-memory.dmp

    Filesize

    68KB

  • memory/1820-59-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

    Filesize

    4KB

  • memory/1820-64-0x0000000000630000-0x0000000000640000-memory.dmp

    Filesize

    64KB

  • memory/1820-63-0x0000000002060000-0x00000000020BA000-memory.dmp

    Filesize

    360KB

  • memory/1820-62-0x00000000002F0000-0x00000000002FC000-memory.dmp

    Filesize

    48KB

  • memory/1820-61-0x0000000004B90000-0x0000000004B91000-memory.dmp

    Filesize

    4KB