Resubmissions

28/01/2024, 01:50

240128-b9mv4aghe910

28/01/2024, 01:47

240128-b7msbagha310

Analysis

  • max time kernel
    440s
  • max time network
    1166s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231215-en
  • resource tags

    arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    28/01/2024, 01:47

General

  • Target
    chromelulz.exe
  • Size 25KB
  • Sample240128-b7msbagha3
  • SHA256 bb7ede5a2cff1bdbab9330a40cf3d44d7bfac7e1ec2675a7232b8b6702a9330d
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • njrat

Version
  • Njrat 0.7 Golden By Hassan Amiri

Botnet
  • lulz

C2
  • /0.tcp.us-cal-1.ngrok.io:9000

Mutex
  • Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\chromelulz.exe
    "C:\Users\Admin\AppData\Local\Temp\chromelulz.exe"
    1⤵
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    PID:1064
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:568

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        memory/1064-1-0x000000001C330000-0x000000001C7FE000-memory.dmp

        memory/1064-0-0x00007FFC9F100000-0x00007FFC9FAA1000-memory.dmp

        memory/1064-2-0x0000000001810000-0x0000000001822000-memory.dmp

        memory/1064-4-0x00007FFC9F100000-0x00007FFC9FAA1000-memory.dmp

        memory/1064-3-0x000000001C8C0000-0x000000001C966000-memory.dmp

        memory/1064-5-0x0000000001880000-0x0000000001890000-memory.dmp

        memory/1064-6-0x000000001CC80000-0x000000001CD1C000-memory.dmp

        memory/1064-10-0x00007FFC9F100000-0x00007FFC9FAA1000-memory.dmp