Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-06-2024 02:29

General

  • Target

    57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe

  • Size

    10.9MB

  • MD5

    f82c196dd344898078ddf662370c343f

  • SHA1

    3d16c0b5913ea39641d3e35716a7898b4495e1f2

  • SHA256

    57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953

  • SHA512

    2477b4742d8dd332e8e3ef868788fa7e8d6b81b26b72434cc485ec386b7e932e6b6dea89fe5c89b7dab8aa847809cb0281302f21463d25c17260560aa229b538

  • SSDEEP

    24576:kGq4MROxnFE33O3BrrcI0AilFEvxHPXoop:kuMiuMBrrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

C2

158.46.224.152:5552

Mutex

0910294482b74b1d8edb1d40e5ed1df5

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    false

  • install_path

    %programdata%\svchost.exe

  • reconnect_delay

    10000

  • registry_keyname

    sysb

  • taskscheduler_taskname

    sysb

  • watchdog_path

    Temp\taskhostw.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
  • Drops file in System32 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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe
    "C:\Users\Admin\AppData\Local\Temp\57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:408
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:1960
    • C:\ProgramData\svchost.exe
      "C:\ProgramData\svchost.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4812
      • C:\Users\Admin\AppData\Local\Temp\taskhostw.exe
        "C:\Users\Admin\AppData\Local\Temp\taskhostw.exe" /launchSelfAndExit "C:\ProgramData\svchost.exe" 4812 /protectFile
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3624
        • C:\Users\Admin\AppData\Local\Temp\taskhostw.exe
          "C:\Users\Admin\AppData\Local\Temp\taskhostw.exe" /watchProcess "C:\ProgramData\svchost.exe" 4812 "/protectFile"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1332
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:1724
  • C:\ProgramData\svchost.exe
    C:\ProgramData\svchost.exe
    1⤵
    • Executes dropped EXE
    PID:680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\svchost.exe

    Filesize

    10.9MB

    MD5

    f82c196dd344898078ddf662370c343f

    SHA1

    3d16c0b5913ea39641d3e35716a7898b4495e1f2

    SHA256

    57d928a5a5d7170e8645f27bcb57f3c6f26ea937cb57a930ce291ed8a3b65953

    SHA512

    2477b4742d8dd332e8e3ef868788fa7e8d6b81b26b72434cc485ec386b7e932e6b6dea89fe5c89b7dab8aa847809cb0281302f21463d25c17260560aa229b538

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

    Filesize

    425B

    MD5

    4eaca4566b22b01cd3bc115b9b0b2196

    SHA1

    e743e0792c19f71740416e7b3c061d9f1336bf94

    SHA256

    34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

    SHA512

    bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

  • C:\Users\Admin\AppData\Local\Temp\taskhostw.exe

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • C:\Users\Admin\AppData\Roaming\err_0910294482b74b1d8edb1d40e5ed1df5.dat

    Filesize

    1KB

    MD5

    203c72c784ab5d1b04a6ca705fe2c0d6

    SHA1

    5e6b290456d968ad3eaf8484b6d3879b1308f924

    SHA256

    ce7ecc16f071e9b108fa256e91e6e951573a8052cba76c4872206d023199cd32

    SHA512

    1e739a48f6bb60fb329ffb0fcd9f03ba907a892e31ed6c9326bea14044bed7673d91f0930b05fe009447a3135ddefc9a804ebc7660c21817e026775da17de3ae

  • 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/408-3-0x0000000004E70000-0x0000000004ECC000-memory.dmp

    Filesize

    368KB

  • memory/408-13-0x0000000005CA0000-0x0000000005CDC000-memory.dmp

    Filesize

    240KB

  • memory/408-8-0x0000000005520000-0x0000000005528000-memory.dmp

    Filesize

    32KB

  • memory/408-1-0x0000000000410000-0x00000000004FE000-memory.dmp

    Filesize

    952KB

  • memory/408-10-0x0000000005B80000-0x0000000005BE6000-memory.dmp

    Filesize

    408KB

  • memory/408-12-0x0000000005C40000-0x0000000005C52000-memory.dmp

    Filesize

    72KB

  • memory/408-11-0x0000000006210000-0x0000000006828000-memory.dmp

    Filesize

    6.1MB

  • memory/408-2-0x00000000027F0000-0x00000000027FE000-memory.dmp

    Filesize

    56KB

  • memory/408-14-0x0000000005CE0000-0x0000000005D2C000-memory.dmp

    Filesize

    304KB

  • memory/408-15-0x0000000005E60000-0x0000000005F6A000-memory.dmp

    Filesize

    1.0MB

  • memory/408-17-0x0000000006830000-0x0000000006852000-memory.dmp

    Filesize

    136KB

  • memory/408-5-0x00000000055D0000-0x0000000005B74000-memory.dmp

    Filesize

    5.6MB

  • memory/408-0-0x000000007453E000-0x000000007453F000-memory.dmp

    Filesize

    4KB

  • memory/408-6-0x0000000005020000-0x00000000050B2000-memory.dmp

    Filesize

    584KB

  • memory/408-58-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/408-4-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/408-7-0x0000000005510000-0x0000000005522000-memory.dmp

    Filesize

    72KB

  • memory/408-9-0x0000000005530000-0x0000000005538000-memory.dmp

    Filesize

    32KB

  • memory/1724-41-0x00007FFC65BC0000-0x00007FFC66681000-memory.dmp

    Filesize

    10.8MB

  • memory/1724-42-0x000000001A180000-0x000000001A28A000-memory.dmp

    Filesize

    1.0MB

  • memory/1724-85-0x00007FFC65BC0000-0x00007FFC66681000-memory.dmp

    Filesize

    10.8MB

  • memory/1960-35-0x00007FFC65BC0000-0x00007FFC66681000-memory.dmp

    Filesize

    10.8MB

  • memory/1960-32-0x00007FFC65BC3000-0x00007FFC65BC5000-memory.dmp

    Filesize

    8KB

  • memory/1960-31-0x0000000000540000-0x000000000054C000-memory.dmp

    Filesize

    48KB

  • memory/1960-39-0x00007FFC65BC0000-0x00007FFC66681000-memory.dmp

    Filesize

    10.8MB

  • memory/1960-33-0x0000000002800000-0x0000000002812000-memory.dmp

    Filesize

    72KB

  • memory/1960-34-0x000000001B150000-0x000000001B18C000-memory.dmp

    Filesize

    240KB

  • memory/3624-80-0x0000000000130000-0x0000000000138000-memory.dmp

    Filesize

    32KB

  • memory/4812-61-0x0000000007270000-0x00000000072BE000-memory.dmp

    Filesize

    312KB

  • memory/4812-66-0x0000000007920000-0x000000000792A000-memory.dmp

    Filesize

    40KB

  • memory/4812-65-0x0000000007620000-0x0000000007630000-memory.dmp

    Filesize

    64KB

  • memory/4812-64-0x0000000007470000-0x0000000007488000-memory.dmp

    Filesize

    96KB

  • memory/4812-62-0x00000000072C0000-0x00000000072D8000-memory.dmp

    Filesize

    96KB