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Analysis

  • max time kernel
    149s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2024, 03:18

General

  • Target

    58dae216d7e872a5ac859cb6990165c8a1b6c10b7d39498b3b38327bf8500ae5N.exe

  • Size

    1.2MB

  • MD5

    42a97cec33e8c8e987d5739fbd3c9f00

  • SHA1

    1704e208451006c59a246e65fce67860f9c76c2f

  • SHA256

    58dae216d7e872a5ac859cb6990165c8a1b6c10b7d39498b3b38327bf8500ae5

  • SHA512

    4dcba032583dc5cd7415f2f2407c658e304a06f081e596534e6b1f5b602730777404db8ab563c34ecaefbfdca6d727ccdec81036a47544ddf1ae54b76ed12b8c

  • SSDEEP

    24576:SAqPpaQKsfCB1DSkIP619ot0IN46qu6I9lMMGwTX3EuAjjv5tJPVUVF4j6:SAq3JCz1IPQiqu6I9KMNTX3EuQFtJPVU

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

KARLA 1998

C2

seznam.hopto.org:1177

Mutex

36db42ed563b740681ec3918ded7c343

Attributes
  • reg_key

    36db42ed563b740681ec3918ded7c343

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 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 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58dae216d7e872a5ac859cb6990165c8a1b6c10b7d39498b3b38327bf8500ae5N.exe
    "C:\Users\Admin\AppData\Local\Temp\58dae216d7e872a5ac859cb6990165c8a1b6c10b7d39498b3b38327bf8500ae5N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Users\Admin\AppData\Local\Temp\facebok.exe
      "C:\Users\Admin\AppData\Local\Temp\facebok.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\facebok.exe" "facebok.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:4484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1.2MB

    MD5

    42a97cec33e8c8e987d5739fbd3c9f00

    SHA1

    1704e208451006c59a246e65fce67860f9c76c2f

    SHA256

    58dae216d7e872a5ac859cb6990165c8a1b6c10b7d39498b3b38327bf8500ae5

    SHA512

    4dcba032583dc5cd7415f2f2407c658e304a06f081e596534e6b1f5b602730777404db8ab563c34ecaefbfdca6d727ccdec81036a47544ddf1ae54b76ed12b8c

  • memory/2232-8-0x0000000005260000-0x000000000533C000-memory.dmp

    Filesize

    880KB

  • memory/2232-1-0x00000000003D0000-0x0000000000504000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-3-0x0000000004DD0000-0x0000000004E62000-memory.dmp

    Filesize

    584KB

  • memory/2232-4-0x0000000004E90000-0x0000000004F2C000-memory.dmp

    Filesize

    624KB

  • memory/2232-5-0x0000000004DA0000-0x0000000004DAA000-memory.dmp

    Filesize

    40KB

  • memory/2232-6-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2232-2-0x0000000005440000-0x00000000059E4000-memory.dmp

    Filesize

    5.6MB

  • memory/2232-7-0x00000000050B0000-0x0000000005106000-memory.dmp

    Filesize

    344KB

  • memory/2232-9-0x0000000005B60000-0x0000000005B6C000-memory.dmp

    Filesize

    48KB

  • memory/2232-0-0x000000007494E000-0x000000007494F000-memory.dmp

    Filesize

    4KB

  • memory/2232-23-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2612-22-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2612-24-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2612-26-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2612-27-0x00000000060A0000-0x0000000006106000-memory.dmp

    Filesize

    408KB

  • memory/2612-28-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB