Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 08:55

General

  • Target

    83a46305d94b60075488f3137e7a0d2c_JaffaCakes118.exe

  • Size

    23KB

  • MD5

    83a46305d94b60075488f3137e7a0d2c

  • SHA1

    213199727785440d87e4d22f344f4114ea739a26

  • SHA256

    e3e9173202c735aec275bb41a1511c5ea586ec1e60a2d55f49fa6c2b9663d061

  • SHA512

    d6905881278283850308e2cb81f1e798f7cbb33bdb2c3b2315505be64c89239d232a1f23c0c84b707ceb2fc92082ef711ce5c6eb105706324b274217671f6cdd

  • SSDEEP

    384:BMKCWZ5xTAcZeMiO7k9zW067vgdTmZFDLRmRvR6JZlbw8hqIusZzZ7/:6aZrF77boRpcnu0

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

legend

C2

127.0.0.1:1177

Mutex

5acedeb8e640188ce371b7e8d44896b3

Attributes
  • reg_key

    5acedeb8e640188ce371b7e8d44896b3

  • splitter

    |'|'|

Signatures

  • 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).

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83a46305d94b60075488f3137e7a0d2c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\83a46305d94b60075488f3137e7a0d2c_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Users\Admin\AppData\Local\Temp\System.exe
      "C:\Users\Admin\AppData\Local\Temp\System.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\System.exe

    Filesize

    23KB

    MD5

    83a46305d94b60075488f3137e7a0d2c

    SHA1

    213199727785440d87e4d22f344f4114ea739a26

    SHA256

    e3e9173202c735aec275bb41a1511c5ea586ec1e60a2d55f49fa6c2b9663d061

    SHA512

    d6905881278283850308e2cb81f1e798f7cbb33bdb2c3b2315505be64c89239d232a1f23c0c84b707ceb2fc92082ef711ce5c6eb105706324b274217671f6cdd

  • memory/2964-0-0x0000000074D51000-0x0000000074D52000-memory.dmp

    Filesize

    4KB

  • memory/2964-1-0x0000000074D50000-0x00000000752FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2964-2-0x0000000074D50000-0x00000000752FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2964-11-0x0000000074D50000-0x00000000752FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3016-10-0x0000000074D50000-0x00000000752FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3016-13-0x0000000074D50000-0x00000000752FB000-memory.dmp

    Filesize

    5.7MB