Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24/03/2025, 01:04

General

  • Target

    ded649aab619195cd663469dcb4078dcf02c1e1aebd42cdc5e189fb8242a463bN.exe

  • Size

    1.1MB

  • MD5

    7f99ce9b97f5e577b97470637c426ee0

  • SHA1

    c16808d9fc554b1d04ab03d52d83efeabd2cba6c

  • SHA256

    ded649aab619195cd663469dcb4078dcf02c1e1aebd42cdc5e189fb8242a463b

  • SHA512

    f13faf3eb02b844dfa2c78c7f84aecc13721d3fc9632ba25c14e69b59af7c78910a084007c857510859a5e08f4fa8ab177bdf13aa9e2be205df5756d5aa0daeb

  • SSDEEP

    24576:f7R4MROxnFl3czErrcI0AilFEvxHPgook/IRx1FPDRyRAVy5p:fSMir1rrcI0AilFEvxHP7/IRx1FPDRyZ

Malware Config

Extracted

Family

orcus

C2

h0metowgh0svi3ws.servequake.com:10114

Mutex

f4a241c2356f470581f678498d8553bb

Attributes
  • autostart_method

    Disable

  • enable_keylogger

    true

  • install_path

    %programfiles%\winupdate\Winupdates.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\WinupdateWatchdog.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 3 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 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 5 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ded649aab619195cd663469dcb4078dcf02c1e1aebd42cdc5e189fb8242a463bN.exe
    "C:\Users\Admin\AppData\Local\Temp\ded649aab619195cd663469dcb4078dcf02c1e1aebd42cdc5e189fb8242a463bN.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2892
    • C:\Program Files (x86)\winupdate\Winupdates.exe
      "C:\Program Files (x86)\winupdate\Winupdates.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2852
      • C:\Users\Admin\AppData\Roaming\WinupdateWatchdog.exe
        "C:\Users\Admin\AppData\Roaming\WinupdateWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\winupdate\Winupdates.exe" 2852 /protectFile
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:984
        • C:\Users\Admin\AppData\Roaming\WinupdateWatchdog.exe
          "C:\Users\Admin\AppData\Roaming\WinupdateWatchdog.exe" /watchProcess "C:\Program Files (x86)\winupdate\Winupdates.exe" 2852 "/protectFile"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2640
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {845CCB74-761E-4E38-A01D-303C8F7DD2D9} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2780
    • C:\Program Files (x86)\winupdate\Winupdates.exe
      "C:\Program Files (x86)\winupdate\Winupdates.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\winupdate\Winupdates.exe.config

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

  • \Program Files (x86)\winupdate\Winupdates.exe

    Filesize

    1.1MB

    MD5

    7f99ce9b97f5e577b97470637c426ee0

    SHA1

    c16808d9fc554b1d04ab03d52d83efeabd2cba6c

    SHA256

    ded649aab619195cd663469dcb4078dcf02c1e1aebd42cdc5e189fb8242a463b

    SHA512

    f13faf3eb02b844dfa2c78c7f84aecc13721d3fc9632ba25c14e69b59af7c78910a084007c857510859a5e08f4fa8ab177bdf13aa9e2be205df5756d5aa0daeb

  • \Users\Admin\AppData\Roaming\WinupdateWatchdog.exe

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • memory/984-33-0x00000000001D0000-0x00000000001D8000-memory.dmp

    Filesize

    32KB

  • memory/2852-22-0x0000000004790000-0x00000000047A0000-memory.dmp

    Filesize

    64KB

  • memory/2852-21-0x00000000042F0000-0x0000000004308000-memory.dmp

    Filesize

    96KB

  • memory/2852-37-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2852-16-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2852-36-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2852-17-0x00000000002F0000-0x0000000000416000-memory.dmp

    Filesize

    1.1MB

  • memory/2852-20-0x0000000004230000-0x000000000427E000-memory.dmp

    Filesize

    312KB

  • memory/2852-18-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2852-19-0x0000000000510000-0x0000000000522000-memory.dmp

    Filesize

    72KB

  • memory/2892-3-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2892-5-0x00000000003C0000-0x00000000003D2000-memory.dmp

    Filesize

    72KB

  • memory/2892-0-0x0000000073DCE000-0x0000000073DCF000-memory.dmp

    Filesize

    4KB

  • memory/2892-2-0x0000000000270000-0x000000000027E000-memory.dmp

    Filesize

    56KB

  • memory/2892-1-0x0000000000BA0000-0x0000000000CC6000-memory.dmp

    Filesize

    1.1MB

  • memory/2892-15-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2892-4-0x0000000002170000-0x00000000021CC000-memory.dmp

    Filesize

    368KB