Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-02-2024 01:08

General

  • Target

    2ca341bc60674d590069eb99e8bf2ecb8cbf44c0fd0d40e7a7b870f05b5a900c.exe

  • Size

    1.1MB

  • MD5

    34b6450b9e4e3b3727ff9d7e9c790d34

  • SHA1

    edbbd2c236ac2fe7402b938199b70f3510c2c58c

  • SHA256

    2ca341bc60674d590069eb99e8bf2ecb8cbf44c0fd0d40e7a7b870f05b5a900c

  • SHA512

    65349b6632615201537f9f1791f52de07d1ee101edddc1696916dfb02b320c45272be95286b25c4a743cf6b8889489f6e7b93c774ded6c46b98a74337748da38

  • SSDEEP

    24576:H884MROxnFE3ci3rrcI0AilFEvxHPpoot:HGMiuv3rrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

C2

0.tcp.eu.ngrok.io:12187

Mutex

f78b25f6477f429680c2e1eadc9b201c

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    false

  • install_path

    %programfiles%\svchost\svchost.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\svchost.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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2ca341bc60674d590069eb99e8bf2ecb8cbf44c0fd0d40e7a7b870f05b5a900c.exe
    "C:\Users\Admin\AppData\Local\Temp\2ca341bc60674d590069eb99e8bf2ecb8cbf44c0fd0d40e7a7b870f05b5a900c.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:4940
    • C:\Program Files (x86)\svchost\svchost.exe
      "C:\Program Files (x86)\svchost\svchost.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe" /launchSelfAndExit "C:\Program Files (x86)\svchost\svchost.exe" 1392
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4604
        • C:\Users\Admin\AppData\Roaming\svchost.exe
          "C:\Users\Admin\AppData\Roaming\svchost.exe" /watchProcess "C:\Program Files (x86)\svchost\svchost.exe" 1392
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3352
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:3232
  • C:\Program Files (x86)\svchost\svchost.exe
    "C:\Program Files (x86)\svchost\svchost.exe"
    1⤵
    • Executes dropped EXE
    PID:3928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1.1MB

    MD5

    34b6450b9e4e3b3727ff9d7e9c790d34

    SHA1

    edbbd2c236ac2fe7402b938199b70f3510c2c58c

    SHA256

    2ca341bc60674d590069eb99e8bf2ecb8cbf44c0fd0d40e7a7b870f05b5a900c

    SHA512

    65349b6632615201537f9f1791f52de07d1ee101edddc1696916dfb02b320c45272be95286b25c4a743cf6b8889489f6e7b93c774ded6c46b98a74337748da38

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

    Filesize

    425B

    MD5

    4eaca4566b22b01cd3bc115b9b0b2196

    SHA1

    e743e0792c19f71740416e7b3c061d9f1336bf94

    SHA256

    34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

    SHA512

    bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

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

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • C:\Users\Admin\AppData\Roaming\svchost\err_f78b25f6477f429680c2e1eadc9b201c.dat

    Filesize

    1KB

    MD5

    a0e6e1e1451442634a481991a2802101

    SHA1

    ed0d32696b6511b2c363a910dcce94c012863b2f

    SHA256

    415b08c9be736b62f2a61eb1e73f1786c012944c4b8ee81a12d201586e7cf745

    SHA512

    8c1b40b2d07073f7d0e3bdd30603b54e8fa9b34b409df8a281f9b6260c5e8a3b1424c8ef89c9dc10969a266fb42f6a009e05138938e6e34be7ee6b60726ca901

  • 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/1392-64-0x0000000006E10000-0x0000000006E28000-memory.dmp

    Filesize

    96KB

  • memory/1392-63-0x0000000006780000-0x00000000067CE000-memory.dmp

    Filesize

    312KB

  • memory/1392-60-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/1392-66-0x0000000006FD0000-0x0000000006FE8000-memory.dmp

    Filesize

    96KB

  • memory/1392-67-0x0000000007180000-0x0000000007190000-memory.dmp

    Filesize

    64KB

  • memory/1392-69-0x0000000007450000-0x000000000745A000-memory.dmp

    Filesize

    40KB

  • memory/1392-93-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3232-43-0x000000001ACE0000-0x000000001ADEA000-memory.dmp

    Filesize

    1.0MB

  • memory/3232-92-0x0000000019ED0000-0x0000000019EE0000-memory.dmp

    Filesize

    64KB

  • memory/3232-42-0x0000000019ED0000-0x0000000019EE0000-memory.dmp

    Filesize

    64KB

  • memory/3232-41-0x00007FFD719C0000-0x00007FFD72481000-memory.dmp

    Filesize

    10.8MB

  • memory/3232-91-0x00007FFD719C0000-0x00007FFD72481000-memory.dmp

    Filesize

    10.8MB

  • memory/3352-89-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3352-94-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3488-11-0x0000000006230000-0x0000000006848000-memory.dmp

    Filesize

    6.1MB

  • memory/3488-59-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3488-12-0x0000000005C10000-0x0000000005C22000-memory.dmp

    Filesize

    72KB

  • memory/3488-13-0x0000000005C70000-0x0000000005CAC000-memory.dmp

    Filesize

    240KB

  • memory/3488-10-0x0000000005BA0000-0x0000000005C06000-memory.dmp

    Filesize

    408KB

  • memory/3488-17-0x00000000061C0000-0x00000000061E2000-memory.dmp

    Filesize

    136KB

  • memory/3488-15-0x0000000005E30000-0x0000000005F3A000-memory.dmp

    Filesize

    1.0MB

  • memory/3488-9-0x0000000005400000-0x0000000005408000-memory.dmp

    Filesize

    32KB

  • memory/3488-8-0x0000000004FD0000-0x0000000004FD8000-memory.dmp

    Filesize

    32KB

  • memory/3488-14-0x0000000005CB0000-0x0000000005CFC000-memory.dmp

    Filesize

    304KB

  • memory/3488-7-0x0000000004FC0000-0x0000000004FD2000-memory.dmp

    Filesize

    72KB

  • memory/3488-6-0x0000000004FE0000-0x0000000005072000-memory.dmp

    Filesize

    584KB

  • memory/3488-5-0x00000000054F0000-0x0000000005A94000-memory.dmp

    Filesize

    5.6MB

  • memory/3488-4-0x0000000004EA0000-0x0000000004EFC000-memory.dmp

    Filesize

    368KB

  • memory/3488-3-0x0000000002960000-0x000000000296E000-memory.dmp

    Filesize

    56KB

  • memory/3488-2-0x0000000004E90000-0x0000000004EA0000-memory.dmp

    Filesize

    64KB

  • memory/3488-0-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3488-1-0x00000000003A0000-0x00000000004CC000-memory.dmp

    Filesize

    1.2MB

  • memory/3928-68-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3928-90-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4604-83-0x0000000000850000-0x0000000000858000-memory.dmp

    Filesize

    32KB

  • memory/4604-84-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4604-88-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4940-39-0x00007FFD719C0000-0x00007FFD72481000-memory.dmp

    Filesize

    10.8MB

  • memory/4940-35-0x000000001C660000-0x000000001C69C000-memory.dmp

    Filesize

    240KB

  • memory/4940-34-0x0000000002A40000-0x0000000002A52000-memory.dmp

    Filesize

    72KB

  • memory/4940-33-0x0000000002A30000-0x0000000002A40000-memory.dmp

    Filesize

    64KB

  • memory/4940-32-0x00007FFD719C0000-0x00007FFD72481000-memory.dmp

    Filesize

    10.8MB

  • memory/4940-31-0x00000000009A0000-0x00000000009AC000-memory.dmp

    Filesize

    48KB