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Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    03/06/2024, 01:05

General

  • Target

    0227339e66ffc8536e29c5d941b6d97368ca067b4aa62ab334aada6f075694d7.exe

  • Size

    917KB

  • MD5

    668520daa3022bddaa770b23dc408d55

  • SHA1

    a80280d6cf9b887bb1badc482f29e71f2ee7c45b

  • SHA256

    0227339e66ffc8536e29c5d941b6d97368ca067b4aa62ab334aada6f075694d7

  • SHA512

    2b5f132055ade2629e0e8eedcb8183b53662d9602f51d90da4dfed0b4a9635ef04897f3912d59ff886168ab04813c4e3967de2aeb067a5c0a1bcd622c4adfb95

  • SSDEEP

    24576:sNL34MROxnFD3Ew8XlrrcI0AilFEvxHProoT:sWMiJIrrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

C2

medicine-pushing.gl.at.ply.gg:50488

Mutex

da4f27f56f6c4be9b71a93002d0bd352

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    false

  • install_path

    %programfiles%\Edge\Application\msruntime.exe

  • reconnect_delay

    10000

  • registry_keyname

    Microsoft Edge

  • taskscheduler_taskname

    Microsoft Edge Startup

  • watchdog_path

    AppData\tasklist.exe

Signatures

  • Orcus

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

  • Orcus main payload 1 IoCs
  • Orcurs Rat Executable 3 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 3 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).

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0227339e66ffc8536e29c5d941b6d97368ca067b4aa62ab334aada6f075694d7.exe
    "C:\Users\Admin\AppData\Local\Temp\0227339e66ffc8536e29c5d941b6d97368ca067b4aa62ab334aada6f075694d7.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2892
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2536
    • C:\Program Files (x86)\Edge\Application\msruntime.exe
      "C:\Program Files (x86)\Edge\Application\msruntime.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Users\Admin\AppData\Roaming\tasklist.exe
        "C:\Users\Admin\AppData\Roaming\tasklist.exe" /launchSelfAndExit "C:\Program Files (x86)\Edge\Application\msruntime.exe" 2504 /protectFile
        3⤵
        • Executes dropped EXE
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2728
        • C:\Users\Admin\AppData\Roaming\tasklist.exe
          "C:\Users\Admin\AppData\Roaming\tasklist.exe" /watchProcess "C:\Program Files (x86)\Edge\Application\msruntime.exe" 2504 "/protectFile"
          4⤵
          • Executes dropped EXE
          • Enumerates processes with tasklist
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1488
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:2572
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {A0235872-CDA2-40CB-8C4B-20911F698855} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Program Files (x86)\Edge\Application\msruntime.exe
      "C:\Program Files (x86)\Edge\Application\msruntime.exe"
      2⤵
      • Executes dropped EXE
      PID:2664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Edge\Application\msruntime.exe

    Filesize

    917KB

    MD5

    668520daa3022bddaa770b23dc408d55

    SHA1

    a80280d6cf9b887bb1badc482f29e71f2ee7c45b

    SHA256

    0227339e66ffc8536e29c5d941b6d97368ca067b4aa62ab334aada6f075694d7

    SHA512

    2b5f132055ade2629e0e8eedcb8183b53662d9602f51d90da4dfed0b4a9635ef04897f3912d59ff886168ab04813c4e3967de2aeb067a5c0a1bcd622c4adfb95

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

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • 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/2504-36-0x00000000021D0000-0x00000000021E0000-memory.dmp

    Filesize

    64KB

  • memory/2504-35-0x0000000000930000-0x0000000000948000-memory.dmp

    Filesize

    96KB

  • memory/2504-34-0x0000000000810000-0x000000000085E000-memory.dmp

    Filesize

    312KB

  • memory/2504-33-0x00000000003C0000-0x00000000003D2000-memory.dmp

    Filesize

    72KB

  • memory/2504-31-0x0000000000180000-0x000000000026A000-memory.dmp

    Filesize

    936KB

  • memory/2536-16-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

    Filesize

    9.9MB

  • memory/2536-19-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

    Filesize

    9.9MB

  • memory/2536-15-0x0000000000070000-0x000000000007C000-memory.dmp

    Filesize

    48KB

  • memory/2536-13-0x000007FEF5C43000-0x000007FEF5C44000-memory.dmp

    Filesize

    4KB

  • memory/2572-21-0x0000000000B40000-0x0000000000B4C000-memory.dmp

    Filesize

    48KB

  • memory/2728-47-0x0000000000290000-0x0000000000298000-memory.dmp

    Filesize

    32KB

  • memory/2892-0-0x000000007494E000-0x000000007494F000-memory.dmp

    Filesize

    4KB

  • memory/2892-32-0x0000000074940000-0x000000007502E000-memory.dmp

    Filesize

    6.9MB

  • memory/2892-5-0x0000000000720000-0x0000000000732000-memory.dmp

    Filesize

    72KB

  • memory/2892-3-0x0000000074940000-0x000000007502E000-memory.dmp

    Filesize

    6.9MB

  • memory/2892-4-0x0000000000830000-0x000000000088C000-memory.dmp

    Filesize

    368KB

  • memory/2892-2-0x00000000005B0000-0x00000000005BE000-memory.dmp

    Filesize

    56KB

  • memory/2892-1-0x0000000000010000-0x00000000000FA000-memory.dmp

    Filesize

    936KB