Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2024, 14:04

General

  • Target

    a25673d120384ef69c9e5837d8d04995_JaffaCakes118.exe

  • Size

    398KB

  • MD5

    a25673d120384ef69c9e5837d8d04995

  • SHA1

    8f33b1fdad76d0d75fa9dd47c1cc938662950b81

  • SHA256

    dcd9736647b75c8840d97a840ccd5d7074aaa38f48a640b15c5172378cce3825

  • SHA512

    58b0fd3dbd3167c586ba66d885acefae4394ea7cc2bedd9dbccca76688e75038de00f450c91e62d3fc33afa58cf992b694fb4bda3a9d803afab852c10d5fabaf

  • SSDEEP

    1536:3vZfWsbvJP/LoZ8WIfk3qprPJ1owCU1M9wtLtt/:fVWsjRjg3qpzFo

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

keep.zapto.org:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • Njrat family
  • 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.

  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a25673d120384ef69c9e5837d8d04995_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a25673d120384ef69c9e5837d8d04995_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2124
    • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3184
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:1984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    398KB

    MD5

    a25673d120384ef69c9e5837d8d04995

    SHA1

    8f33b1fdad76d0d75fa9dd47c1cc938662950b81

    SHA256

    dcd9736647b75c8840d97a840ccd5d7074aaa38f48a640b15c5172378cce3825

    SHA512

    58b0fd3dbd3167c586ba66d885acefae4394ea7cc2bedd9dbccca76688e75038de00f450c91e62d3fc33afa58cf992b694fb4bda3a9d803afab852c10d5fabaf

  • memory/2124-3-0x000000001BFA0000-0x000000001C46E000-memory.dmp

    Filesize

    4.8MB

  • memory/2124-1-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/2124-0-0x00007FFD9A925000-0x00007FFD9A926000-memory.dmp

    Filesize

    4KB

  • memory/2124-4-0x000000001C520000-0x000000001C5C6000-memory.dmp

    Filesize

    664KB

  • memory/2124-6-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/2124-2-0x0000000001570000-0x000000000157E000-memory.dmp

    Filesize

    56KB

  • memory/2124-19-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3184-18-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3184-21-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB

  • memory/3184-22-0x000000001C320000-0x000000001C3BC000-memory.dmp

    Filesize

    624KB

  • memory/3184-23-0x00000000010E0000-0x00000000010E8000-memory.dmp

    Filesize

    32KB

  • memory/3184-24-0x00007FFD9A670000-0x00007FFD9B011000-memory.dmp

    Filesize

    9.6MB