Analysis

  • max time kernel
    150s
  • max time network
    96s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    01-12-2024 13:40

General

  • Target

    HWID Spoofer.exe

  • Size

    357KB

  • MD5

    c9b25c1bc4eb54124dad046b3b9e4241

  • SHA1

    9e075389a2f34e224a68f84a1c5bb4d665077180

  • SHA256

    620b80bcb9f45c4f6f8a0f2c503b4c639deb22c8b2d46d53261f695b51c2b0be

  • SHA512

    75daa5a302e7faa1bca08b5f3101b757c07fe844945557b656143b85d37cf1fb0c45e51592d41a50827c0a2871bb9dfeaed502b5971efa4a307f7ade39bdd52d

  • SSDEEP

    6144:XYn5fNz3b/DKgUff6zxXINL8AlskBgw+uAVJK25HZ56Bk:XYn5fBGn6z9CABkG

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

hakim32.ddns.net:2000

127.0.0.1:5552

Mutex

c3deeffb05c4fa7f233694e4990d7e74

Attributes
  • reg_key

    c3deeffb05c4fa7f233694e4990d7e74

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Disables Task Manager via registry modification
  • Modifies Windows Firewall 2 TTPs 3 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HWID Spoofer.exe
    "C:\Users\Admin\AppData\Local\Temp\HWID Spoofer.exe"
    1⤵
    • Drops startup file
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4392
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\HWID Spoofer.exe" "HWID Spoofer.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:2848
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\HWID Spoofer.exe"
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:6128
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\HWID Spoofer.exe" "HWID Spoofer.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:4656
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2536
  • C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
    C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3024
  • C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
    C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\StUpdate.exe.log

    Filesize

    408B

    MD5

    593f806d2255a76afcad5d4a8395781b

    SHA1

    3990edff12ef61875bb4206b25a97a9440a8998c

    SHA256

    beb8b3a764b3e94cc547be84090345e833be03d95d680ad4d75734ccd6485757

    SHA512

    97440ebd7f8aac1030fe83c7f32a40a986d0fa6faec2c8b8cfbce093a3f27e7626c0b6e768ce6c753ac4dddc4227057b3a6e1d5a652d1f4a9cf64fa8efbad017

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

    Filesize

    357KB

    MD5

    c9b25c1bc4eb54124dad046b3b9e4241

    SHA1

    9e075389a2f34e224a68f84a1c5bb4d665077180

    SHA256

    620b80bcb9f45c4f6f8a0f2c503b4c639deb22c8b2d46d53261f695b51c2b0be

    SHA512

    75daa5a302e7faa1bca08b5f3101b757c07fe844945557b656143b85d37cf1fb0c45e51592d41a50827c0a2871bb9dfeaed502b5971efa4a307f7ade39bdd52d

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

    Filesize

    4B

    MD5

    4d853d9c7197ee7fa81c6535b1f7d655

    SHA1

    eac3d866e991967b385f3dd22da25e410d8f7f49

    SHA256

    5abdb6175f820f0ac3d8647fbb1f7a0bcc91757a782a8a145570944ca6a00c96

    SHA512

    dc5a09d8586eb9f591f6e00187817c19f693e9328a1b2e5838c61c0b234e9608eecc45bbf7f4a90912e9a456d0ab469ed2503bafb4988b276cec8d5f0b18fda7

  • memory/4392-0-0x0000000074E11000-0x0000000074E12000-memory.dmp

    Filesize

    4KB

  • memory/4392-1-0x0000000074E10000-0x00000000753C1000-memory.dmp

    Filesize

    5.7MB

  • memory/4392-2-0x0000000074E10000-0x00000000753C1000-memory.dmp

    Filesize

    5.7MB

  • memory/4392-8-0x0000000074E10000-0x00000000753C1000-memory.dmp

    Filesize

    5.7MB

  • memory/4392-9-0x0000000074E10000-0x00000000753C1000-memory.dmp

    Filesize

    5.7MB

  • memory/4392-10-0x0000000074E10000-0x00000000753C1000-memory.dmp

    Filesize

    5.7MB