Analysis

  • max time kernel
    150s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    05-01-2025 01:13

General

  • Target

    JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe

  • Size

    32KB

  • MD5

    81db08af2e45902dd126c2bb0b2742ec

  • SHA1

    3b089636bdbed115573f66e37040272e818243e2

  • SHA256

    813797b7a9acf4262cf567f0cbe09ebd6be5d5c446ebe4fa5c147e7b94bf5ad4

  • SHA512

    97f464e63e907cb47f967cf9a99bffec34163fcb97d34530e6fcaebaac298a6d16a414960bf3aac54bd957c5490b0ec3cbcd6ab6041e53c9c6f998fc3914ee41

  • SSDEEP

    768:lRSDnewcKNVi4wbNF51jT3rFHkKbBgqpMxgP9CKl:P+nM4ivbNFnXrxki34gP9CKl

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

Mutex

6987755f146a62fa584d2a8a43dc9fe3

Attributes
  • reg_key

    6987755f146a62fa584d2a8a43dc9fe3

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 29 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2596
    • C:\Users\Admin\AppData\Local\Temp\explorer.DLL.exe
      "C:\Users\Admin\AppData\Local\Temp\explorer.DLL.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:2856
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explorer.DLL.exe" "explorer.DLL.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\explorer.DLL.exe

    Filesize

    32KB

    MD5

    81db08af2e45902dd126c2bb0b2742ec

    SHA1

    3b089636bdbed115573f66e37040272e818243e2

    SHA256

    813797b7a9acf4262cf567f0cbe09ebd6be5d5c446ebe4fa5c147e7b94bf5ad4

    SHA512

    97f464e63e907cb47f967cf9a99bffec34163fcb97d34530e6fcaebaac298a6d16a414960bf3aac54bd957c5490b0ec3cbcd6ab6041e53c9c6f998fc3914ee41

  • memory/2596-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

    Filesize

    4KB

  • memory/2596-1-0x0000000001050000-0x000000000105E000-memory.dmp

    Filesize

    56KB

  • memory/2596-2-0x00000000744DE000-0x00000000744DF000-memory.dmp

    Filesize

    4KB

  • memory/2596-3-0x0000000000350000-0x000000000035C000-memory.dmp

    Filesize

    48KB

  • memory/2596-4-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2596-13-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2856-12-0x0000000000AE0000-0x0000000000AEE000-memory.dmp

    Filesize

    56KB

  • memory/2856-14-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2856-15-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2856-16-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2856-18-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB