Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-09-2024 23:39

General

  • Target

    ce2a5974ae17e9d7c140f7ea0d4eecce_JaffaCakes118.exe

  • Size

    93KB

  • MD5

    ce2a5974ae17e9d7c140f7ea0d4eecce

  • SHA1

    d8782bb7b6440950b691b0d040bf90492abcd651

  • SHA256

    981468e722ee2e24a8021f4acdd110bcfcb4086288acc873f180ec3a98c23524

  • SHA512

    87d4a4f30c5c0f171861f27f503f9a14eae49e81a462043e8aa4af98b07ef03274089afebcbf4f2a1ec262a212a7a5b87d66134b2320caa91f5853016efed382

  • SSDEEP

    1536:CsB6ybjYhYy+vQKZmnL9xoioKR/7yB5R4ShnIUDHjal/wy0Ja1Qp5:F6yfYB+IKuPH/7y2gD0wy0Ja1Qp

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

nj

C2

199.241.146.179:31922

Mutex

c5dbc4b5114eccb1261dfdb2194089a8

Attributes
  • reg_key

    c5dbc4b5114eccb1261dfdb2194089a8

  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 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 5 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 35 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ce2a5974ae17e9d7c140f7ea0d4eecce_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ce2a5974ae17e9d7c140f7ea0d4eecce_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1328
    • C:\Users\Admin\AppData\Local\Temp\ce2a5974ae17e9d7c140f7ea0d4eecce_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\ce2a5974ae17e9d7c140f7ea0d4eecce_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:824
      • C:\Users\Admin\AppData\Roaming\winsec.exe
        "C:\Users\Admin\AppData\Roaming\winsec.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:828
        • C:\Users\Admin\AppData\Roaming\winsec.exe
          "C:\Users\Admin\AppData\Roaming\winsec.exe"
          4⤵
          • 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:2128
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\winsec.exe" "winsec.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            • Event Triggered Execution: Netsh Helper DLL
            • System Location Discovery: System Language Discovery
            PID:676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\ce2a5974ae17e9d7c140f7ea0d4eecce_JaffaCakes118.exe.log

    Filesize

    400B

    MD5

    0a9b4592cd49c3c21f6767c2dabda92f

    SHA1

    f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

    SHA256

    c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

    SHA512

    6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

  • C:\Users\Admin\AppData\Roaming\winsec.exe

    Filesize

    93KB

    MD5

    ce2a5974ae17e9d7c140f7ea0d4eecce

    SHA1

    d8782bb7b6440950b691b0d040bf90492abcd651

    SHA256

    981468e722ee2e24a8021f4acdd110bcfcb4086288acc873f180ec3a98c23524

    SHA512

    87d4a4f30c5c0f171861f27f503f9a14eae49e81a462043e8aa4af98b07ef03274089afebcbf4f2a1ec262a212a7a5b87d66134b2320caa91f5853016efed382

  • memory/824-5-0x0000000000740000-0x000000000074C000-memory.dmp

    Filesize

    48KB

  • memory/824-4-0x0000000000740000-0x000000000074C000-memory.dmp

    Filesize

    48KB

  • memory/824-7-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/824-8-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/824-3-0x0000000000740000-0x000000000074C000-memory.dmp

    Filesize

    48KB

  • memory/824-25-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/828-26-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/828-35-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/828-34-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/828-27-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/1328-11-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/1328-1-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/1328-2-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/1328-12-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/1328-10-0x0000000074620000-0x0000000074BD1000-memory.dmp

    Filesize

    5.7MB

  • memory/1328-0-0x0000000074622000-0x0000000074623000-memory.dmp

    Filesize

    4KB