Analysis

  • max time kernel
    119s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-09-2024 06:29

General

  • Target

    c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe

  • Size

    3.0MB

  • MD5

    5487d71c19c09ded835191e89feba640

  • SHA1

    6c13f1e61e8cf66ae728a53c49497899def41092

  • SHA256

    c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2

  • SHA512

    0d17303a9bc1903d298eb5d6cc8d1d36bfa1950c9fe14d8d03623381c5d4f75f5e6eb376474b4d67081906630459be4374a980992622515b3646170b8b8f6181

  • SSDEEP

    49152:dsFN8QFUwqYZeM9/ZzzBjMkPUayX82+YXAypQxb9ndo9JnCmwWncFf0I74gu3+SM:do0wGGzBjryX82uypSb9ndo9JCm

Malware Config

Extracted

Family

orcus

C2

voidsystems.duckdns.org:23210

Mutex

db2de9eb436a494988e51052087353b5

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    false

  • install_path

    %programfiles%\KernelGuard\SafeGuard.exe

  • reconnect_delay

    10000

  • registry_keyname

    KernelEncryptionProtocolKEP

  • taskscheduler_taskname

    SafeGuard

  • watchdog_path

    AppData\KernelAntiLoopGuard

Signatures

  • Orcus

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

  • Orcurs Rat Executable 3 IoCs
  • Executes dropped EXE 4 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).

  • System Location Discovery: System Language Discovery 1 TTPs 18 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 18 IoCs
  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 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\c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe
    "C:\Users\Admin\AppData\Local\Temp\c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2804
    • C:\Program Files\KernelGuard\SafeGuard.exe
      "C:\Program Files\KernelGuard\SafeGuard.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2608
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2340
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          PID:2756
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:1132
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2216
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2292
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2420
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2140
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1652
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:1624
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1616
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2236
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1696
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:1792
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2024
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:1104
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:468
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:856
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:576
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:1548
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1700
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:2168
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2692
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:2700
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2380
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:2552
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2452
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:2976
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1848
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:2672
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1872
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:2132
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2208
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:2200
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2368
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
        • Modifies registry class
        PID:2364
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1280
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard
        3⤵
          PID:964
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe"
      1⤵
      • Executes dropped EXE
      PID:2764
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {C6E1AD70-8246-4577-9071-1DF1E48BF373} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Program Files\KernelGuard\SafeGuard.exe
        "C:\Program Files\KernelGuard\SafeGuard.exe"
        2⤵
        • Executes dropped EXE
        PID:448

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files\KernelGuard\SafeGuard.exe

      Filesize

      3.0MB

      MD5

      5487d71c19c09ded835191e89feba640

      SHA1

      6c13f1e61e8cf66ae728a53c49497899def41092

      SHA256

      c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2

      SHA512

      0d17303a9bc1903d298eb5d6cc8d1d36bfa1950c9fe14d8d03623381c5d4f75f5e6eb376474b4d67081906630459be4374a980992622515b3646170b8b8f6181

    • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

      Filesize

      3KB

      MD5

      1c45404ccb4d2ffbd43294329ef60431

      SHA1

      31b8a8d860b823d3d76ca20da69e191bec075a71

      SHA256

      91bed08c31c1fa6a0865b799df1f384c335776964ce464218110d9dff98e6c03

      SHA512

      3df7a50ef987307d5a6ecaf46d6c8e4c0c138f5c168a500f7ad64d3200ee9d2fb6378dee088823391275900c7cd368e8227dc53964a0929299cc4b9364620772

    • C:\Users\Admin\AppData\Roaming\KernelAntiLoopGuard

      Filesize

      9KB

      MD5

      8ace06702ec59d170ca2b31f95812e0f

      SHA1

      de36712adf9b67d0b4c99d12eb59361adfc5473f

      SHA256

      f74d37fae8e3fb82eff8d6acf755687d9fb38403c38512ad794f16d5b471ce45

      SHA512

      5d4dc9ad439f66a17f286800559f1ad13f798cf633eaa7319f41691f2d11a519cccab568e0dd2cadebe4258f51d760fab9ca67e7ecb6c97ff496c9308de6cec5

    • C:\Windows\SysWOW64\WindowsInput.exe

      Filesize

      21KB

      MD5

      a80be96476032d2eaa901d180fe9fb73

      SHA1

      f378d0bc5fefb9ea0b5006f020091ffcbcd7acec

      SHA256

      d6075c1ed6f285f5de01ce0cc6a817b59054da8b19f20bc7081cfe7fb2b1af42

      SHA512

      210c0c4c845b416a601015fba5ccd2a3e8a4b81d3b4c5e0491b07bd0dcad938d9b118728bb1abc21eb73c5f9263a3c08e1822ece91002a2d1f0983857f0192ea

    • C:\Windows\SysWOW64\WindowsInput.exe.config

      Filesize

      357B

      MD5

      a2b76cea3a59fa9af5ea21ff68139c98

      SHA1

      35d76475e6a54c168f536e30206578babff58274

      SHA256

      f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

      SHA512

      b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

    • \??\PIPE\srvsvc

      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • memory/2032-4-0x000007FEF5E20000-0x000007FEF680C000-memory.dmp

      Filesize

      9.9MB

    • memory/2032-5-0x00000000001F0000-0x0000000000202000-memory.dmp

      Filesize

      72KB

    • memory/2032-30-0x000007FEF5E20000-0x000007FEF680C000-memory.dmp

      Filesize

      9.9MB

    • memory/2032-2-0x0000000000140000-0x000000000019C000-memory.dmp

      Filesize

      368KB

    • memory/2032-3-0x00000000001B0000-0x00000000001BE000-memory.dmp

      Filesize

      56KB

    • memory/2032-0-0x000007FEF5E23000-0x000007FEF5E24000-memory.dmp

      Filesize

      4KB

    • memory/2032-1-0x0000000001010000-0x000000000130C000-memory.dmp

      Filesize

      3.0MB

    • memory/2608-31-0x00000000024C0000-0x0000000002518000-memory.dmp

      Filesize

      352KB

    • memory/2608-29-0x0000000000CB0000-0x0000000000FAC000-memory.dmp

      Filesize

      3.0MB

    • memory/2608-32-0x0000000002550000-0x0000000002568000-memory.dmp

      Filesize

      96KB

    • memory/2608-33-0x0000000002570000-0x0000000002580000-memory.dmp

      Filesize

      64KB

    • memory/2804-18-0x000007FEF5E20000-0x000007FEF680C000-memory.dmp

      Filesize

      9.9MB

    • memory/2804-14-0x000007FEF5E20000-0x000007FEF680C000-memory.dmp

      Filesize

      9.9MB

    • memory/2804-15-0x000007FEF5E20000-0x000007FEF680C000-memory.dmp

      Filesize

      9.9MB

    • memory/2804-13-0x0000000001090000-0x000000000109C000-memory.dmp

      Filesize

      48KB