Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 02:00

General

  • Target
    9032963d4238d2e00a795579141d263a_JaffaCakes118.exe
  • Size 43KB
  • Sample240603-ce8dzsfc91
  • SHA256 a04628d5c6c97eec5c31aa85706b40e171038c118f27fedf7aa093bad43cc363
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • njrat

Version
  • Njrat 0.7 Golden By Hassan Amiri

Botnet
  • HacKed

C2
  • 0.tcp.ngrok.io:16424

Mutex
  • Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • 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 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9032963d4238d2e00a795579141d263a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9032963d4238d2e00a795579141d263a_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Users\Admin\AppData\Roaming\Dllhost.exe
      "C:\Users\Admin\AppData\Roaming\Dllhost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1580
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • Creates scheduled task(s)
        PID:5104
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:4792
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:5096
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:3252

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Server.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Server.exe.log
        • Size 507B
        • SHA256 650faa13e983c9046c9030f63a5fa1c33900432ec7cb3762e015da2e7c5b34a5
        • MD5 SHA1 SHA512

        Dllhost.exe

        • Path C:\Users\Admin\AppData\Roaming\Dllhost.exe
        • Size 43KB
        • SHA256 a04628d5c6c97eec5c31aa85706b40e171038c118f27fedf7aa093bad43cc363
        • MD5 SHA1 SHA512 SSDEEP

        memory/1580-22-0x0000000006DF0000-0x0000000006E08000-memory.dmp

        memory/1580-17-0x00000000749D0000-0x0000000075180000-memory.dmp

        memory/1580-26-0x00000000749D0000-0x0000000075180000-memory.dmp

        memory/1580-23-0x00000000749D0000-0x0000000075180000-memory.dmp

        memory/1580-21-0x0000000005E30000-0x0000000005E96000-memory.dmp

        memory/1580-20-0x0000000005A80000-0x0000000005A8A000-memory.dmp

        memory/1580-16-0x00000000749D0000-0x0000000075180000-memory.dmp

        memory/1644-2-0x0000000005200000-0x000000000529C000-memory.dmp

        memory/1644-15-0x00000000749D0000-0x0000000075180000-memory.dmp

        memory/1644-3-0x0000000005A50000-0x0000000005FF4000-memory.dmp

        memory/1644-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

        memory/1644-5-0x00000000055A0000-0x0000000005632000-memory.dmp

        memory/1644-4-0x00000000749D0000-0x0000000075180000-memory.dmp

        memory/1644-1-0x0000000000800000-0x0000000000812000-memory.dmp

        memory/4792-27-0x00000000749D0000-0x0000000075180000-memory.dmp

        memory/4792-29-0x00000000749D0000-0x0000000075180000-memory.dmp