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Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/02/2025, 01:07

General

  • Target

    748f6be55670e72814b65bbb4a99ac927b747191624b899e8aec9991e6c7508e.exe

  • Size

    924KB

  • MD5

    65b8b0a4be160758714c0a5844f720b7

  • SHA1

    9221f71daa2045ce35bc615a2595852d41984fa6

  • SHA256

    748f6be55670e72814b65bbb4a99ac927b747191624b899e8aec9991e6c7508e

  • SHA512

    24bb5964acf9c000ead37f1329410d2e26fb0da8054ca782a104404aea199c4bbaf213b08e6f4906d560558ee6d49ec11b6df9fa0c51acfd057d6db364071a27

  • SSDEEP

    24576:Nzra4MROxnFE3KrXperZlI0AilFEvxHiHj:Nz1MiuQperZlI0AilFEvxHi

Malware Config

Extracted

Family

orcus

C2

loss-justin.gl.at.ply.gg:48331

Mutex

27edce0e1a134e88b505ddd0fd2d2ad7

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    true

  • install_path

    %programfiles%\NotePad\NotePad.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    RobloxCrashHandler_19384

  • watchdog_path

    Temp\RobloxCrash.exe

Signatures

  • Orcus

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

  • Orcus family
  • 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 desktop.ini file(s) 2 IoCs
  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows 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 2 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 14 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\748f6be55670e72814b65bbb4a99ac927b747191624b899e8aec9991e6c7508e.exe
    "C:\Users\Admin\AppData\Local\Temp\748f6be55670e72814b65bbb4a99ac927b747191624b899e8aec9991e6c7508e.exe"
    1⤵
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:4080
    • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
      "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\mdjf3gic.cmdline"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3456
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
        C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES8686.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC8685.tmp"
        3⤵
          PID:3796
      • C:\Windows\SysWOW64\WindowsInput.exe
        "C:\Windows\SysWOW64\WindowsInput.exe" --install
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        PID:4616
      • C:\Program Files\NotePad\NotePad.exe
        "C:\Program Files\NotePad\NotePad.exe"
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Users\Admin\AppData\Local\Temp\RobloxCrash.exe
          "C:\Users\Admin\AppData\Local\Temp\RobloxCrash.exe" /launchSelfAndExit "C:\Program Files\NotePad\NotePad.exe" 1576 /protectFile
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4500
          • C:\Users\Admin\AppData\Local\Temp\RobloxCrash.exe
            "C:\Users\Admin\AppData\Local\Temp\RobloxCrash.exe" /watchProcess "C:\Program Files\NotePad\NotePad.exe" 1576 "/protectFile"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2920
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe"
      1⤵
      • Executes dropped EXE
      PID:1008
    • C:\Program Files\NotePad\NotePad.exe
      "C:\Program Files\NotePad\NotePad.exe"
      1⤵
      • Executes dropped EXE
      PID:3636

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\NotePad\NotePad.exe

      Filesize

      924KB

      MD5

      65b8b0a4be160758714c0a5844f720b7

      SHA1

      9221f71daa2045ce35bc615a2595852d41984fa6

      SHA256

      748f6be55670e72814b65bbb4a99ac927b747191624b899e8aec9991e6c7508e

      SHA512

      24bb5964acf9c000ead37f1329410d2e26fb0da8054ca782a104404aea199c4bbaf213b08e6f4906d560558ee6d49ec11b6df9fa0c51acfd057d6db364071a27

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

      Filesize

      425B

      MD5

      4eaca4566b22b01cd3bc115b9b0b2196

      SHA1

      e743e0792c19f71740416e7b3c061d9f1336bf94

      SHA256

      34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

      SHA512

      bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

    • C:\Users\Admin\AppData\Local\Temp\RES8686.tmp

      Filesize

      1KB

      MD5

      cc2622b3b617c7f5df4d6a90e736c816

      SHA1

      09a620943d0f8299ecb078444d3ae33d7c1b53f2

      SHA256

      4daac7d22d973c033c4bcb9f62cb7449e7e31cbfb0ae44506938cbb5000bc330

      SHA512

      9ca488e05429b79964b0de0cc00a454d811fb01bd40bf8f32b94619235bf979921c92890512f9d7843b1858ae3980cb265aa992c9a2c6216f28ace959d205cb3

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

      Filesize

      9KB

      MD5

      913967b216326e36a08010fb70f9dba3

      SHA1

      7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

      SHA256

      8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

      SHA512

      c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

    • C:\Users\Admin\AppData\Local\Temp\mdjf3gic.dll

      Filesize

      76KB

      MD5

      6fe1304893eb183a0f85b48d916a55a6

      SHA1

      60fc35ed6b23ea8adcf733e7b8d00d6cdbdeaf2d

      SHA256

      2b1942210973be77bdd00ee5e6ae075a4e12ff5b0d720e4a55ea9d2b45f4e6b3

      SHA512

      172cd08440ae1ac94360541372262bc6edf45e59af36d7988e192e79fb020fdeb65b8ef8a7997820668689d057c7fbe3b41ac7c5c9d0725c99e03f0f8324e9c2

    • 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

    • C:\Windows\System32\NotePad\err_27edce0e1a134e88b505ddd0fd2d2ad7.dat

      Filesize

      1KB

      MD5

      ec75389aafcd52ff638300d9828ecef2

      SHA1

      ec1c0e1503c1602dbab3e51504af77286524cd0b

      SHA256

      d4f9f6594cd8ec44276d4ddfc667965ca8746d54b35fb160d5cdf38485bf2355

      SHA512

      3619adc901addc7cc77d7fabdde8746c32742e763bd2201aefd14d24f560a7fccc7b3195ea152aff7161d7b2f21524c8c2aaa164fa7e74071c6d17a8922dabfe

    • \??\c:\Users\Admin\AppData\Local\Temp\CSC8685.tmp

      Filesize

      676B

      MD5

      3f8b8ad088e47220768345fa127b418b

      SHA1

      3f080b391dbc83de7b65e7484f9ecabf02d73fc2

      SHA256

      6eeafeaa7f03409b170f6fde33da67fd333dcba80ada2404b43c51626e91b0e4

      SHA512

      43d856de8e17d8decd189d21063ed6fbe8dd563f9f2f608cee03bf0c6073319e7264829f71baff0a67d80133de1b9a0dacebdb3bfb2afd8579dd4e2b43ba3fda

    • \??\c:\Users\Admin\AppData\Local\Temp\mdjf3gic.0.cs

      Filesize

      208KB

      MD5

      7123c636673439fd40dfced63b0c4687

      SHA1

      90c2aba8746cc49dab01d99ca69d20b4a592524d

      SHA256

      bdca079b093684558750c954de971b3ccec9316a7427209aece1e29f127b0bef

      SHA512

      1266e9dafa72dd3f6314c1a9429a09f035a5367b7e01b2f99e6642f84461b16b20c69e9387d402778ded32220f641f4e4868854e346da8b225895979c6f1e0b8

    • \??\c:\Users\Admin\AppData\Local\Temp\mdjf3gic.cmdline

      Filesize

      349B

      MD5

      0fb0584f4f17ae67de811055c7bc214f

      SHA1

      6d79422528bc2fb62d5f17d9832bef898e2313e3

      SHA256

      0d29155d6f63bab8082052829cefdb009674f2a69fa7db59effc8aebc4e10d46

      SHA512

      099d89a1a787fbbb77d19982b7a21e1436c636e6d251dc3011b150e901a2393f58b66628fce733f06cd7e67f53731ab3743a9f0f7fe9dc2e555522e7fb0fe8e6

    • memory/1008-59-0x000000001A0D0000-0x000000001A1DA000-memory.dmp

      Filesize

      1.0MB

    • memory/1576-84-0x000000001BDC0000-0x000000001BF82000-memory.dmp

      Filesize

      1.8MB

    • memory/1576-85-0x000000001B140000-0x000000001B150000-memory.dmp

      Filesize

      64KB

    • memory/1576-83-0x000000001B120000-0x000000001B138000-memory.dmp

      Filesize

      96KB

    • memory/1576-81-0x000000001B0D0000-0x000000001B11E000-memory.dmp

      Filesize

      312KB

    • memory/1576-78-0x0000000002500000-0x0000000002512000-memory.dmp

      Filesize

      72KB

    • memory/1576-76-0x00000000002A0000-0x000000000038E000-memory.dmp

      Filesize

      952KB

    • memory/3456-21-0x00007FF82BF70000-0x00007FF82C911000-memory.dmp

      Filesize

      9.6MB

    • memory/3456-17-0x00007FF82BF70000-0x00007FF82C911000-memory.dmp

      Filesize

      9.6MB

    • memory/4080-7-0x000000001BAD0000-0x000000001BF9E000-memory.dmp

      Filesize

      4.8MB

    • memory/4080-0-0x00007FF82C225000-0x00007FF82C226000-memory.dmp

      Filesize

      4KB

    • memory/4080-32-0x000000001DB10000-0x000000001DB59000-memory.dmp

      Filesize

      292KB

    • memory/4080-33-0x00007FF82BF70000-0x00007FF82C911000-memory.dmp

      Filesize

      9.6MB

    • memory/4080-34-0x000000001DBF0000-0x000000001DC60000-memory.dmp

      Filesize

      448KB

    • memory/4080-35-0x00007FF82BF70000-0x00007FF82C911000-memory.dmp

      Filesize

      9.6MB

    • memory/4080-37-0x000000001DEC0000-0x000000001DEE0000-memory.dmp

      Filesize

      128KB

    • memory/4080-8-0x000000001C040000-0x000000001C0DC000-memory.dmp

      Filesize

      624KB

    • memory/4080-30-0x000000001DA10000-0x000000001DB00000-memory.dmp

      Filesize

      960KB

    • memory/4080-1-0x00007FF82BF70000-0x00007FF82C911000-memory.dmp

      Filesize

      9.6MB

    • memory/4080-2-0x000000001B3F0000-0x000000001B44C000-memory.dmp

      Filesize

      368KB

    • memory/4080-23-0x000000001C700000-0x000000001C716000-memory.dmp

      Filesize

      88KB

    • memory/4080-25-0x0000000000E10000-0x0000000000E22000-memory.dmp

      Filesize

      72KB

    • memory/4080-31-0x000000001CC40000-0x000000001CC5E000-memory.dmp

      Filesize

      120KB

    • memory/4080-6-0x00007FF82BF70000-0x00007FF82C911000-memory.dmp

      Filesize

      9.6MB

    • memory/4080-29-0x000000001D450000-0x000000001DA0A000-memory.dmp

      Filesize

      5.7MB

    • memory/4080-77-0x00007FF82BF70000-0x00007FF82C911000-memory.dmp

      Filesize

      9.6MB

    • memory/4080-28-0x000000001CAE0000-0x000000001CB42000-memory.dmp

      Filesize

      392KB

    • memory/4080-5-0x000000001B5F0000-0x000000001B5FE000-memory.dmp

      Filesize

      56KB

    • memory/4080-27-0x000000001B3E0000-0x000000001B3E8000-memory.dmp

      Filesize

      32KB

    • memory/4080-26-0x0000000000DF0000-0x0000000000DF8000-memory.dmp

      Filesize

      32KB

    • memory/4500-99-0x0000000000940000-0x0000000000948000-memory.dmp

      Filesize

      32KB

    • memory/4616-54-0x0000000003130000-0x000000000316C000-memory.dmp

      Filesize

      240KB

    • memory/4616-53-0x00000000030D0000-0x00000000030E2000-memory.dmp

      Filesize

      72KB

    • memory/4616-51-0x0000000000F10000-0x0000000000F1C000-memory.dmp

      Filesize

      48KB

    • memory/4616-52-0x00007FF829153000-0x00007FF829155000-memory.dmp

      Filesize

      8KB