Analysis

  • max time kernel
    101s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2024 06:13

General

  • Target

    5aa54b79bb6bc959592bd0d44072aa20N.exe

  • Size

    146KB

  • MD5

    5aa54b79bb6bc959592bd0d44072aa20

  • SHA1

    394f4699e128e7eb94a83159f207c544c1225a2a

  • SHA256

    f931c3d38402a25748eae9af54bb639e33d9b318f26550eb2ebd56abac3cf30e

  • SHA512

    4081583e7a27d0c889048acab00f692d0a8eda031aae3e6dd7a36e1f81e6c0a3d016ba421f1184670853829d398c20d86c4acda7d5bf70fa2f925ade2b88ef9f

  • SSDEEP

    3072:9FXJCIuvvEyaoQdOLBB9jO/BK0h7KcdxrgKaQG5IPKOFwXhc0brb:9FXJ9uvvRUOLBOJscnrgKa75IyOFwRc+

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

An0nym0us

C2

faizich.noip.me:100

Mutex

526da8c3cf38c27132d513f653a25a62

Attributes
  • reg_key

    526da8c3cf38c27132d513f653a25a62

  • 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 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.

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5aa54b79bb6bc959592bd0d44072aa20N.exe
    "C:\Users\Admin\AppData\Local\Temp\5aa54b79bb6bc959592bd0d44072aa20N.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1720
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe

    Filesize

    146KB

    MD5

    5aa54b79bb6bc959592bd0d44072aa20

    SHA1

    394f4699e128e7eb94a83159f207c544c1225a2a

    SHA256

    f931c3d38402a25748eae9af54bb639e33d9b318f26550eb2ebd56abac3cf30e

    SHA512

    4081583e7a27d0c889048acab00f692d0a8eda031aae3e6dd7a36e1f81e6c0a3d016ba421f1184670853829d398c20d86c4acda7d5bf70fa2f925ade2b88ef9f

  • memory/1720-19-0x00007FFE87600000-0x00007FFE880C1000-memory.dmp

    Filesize

    10.8MB

  • memory/1720-21-0x00007FFE87600000-0x00007FFE880C1000-memory.dmp

    Filesize

    10.8MB

  • memory/1732-0-0x00007FFE87603000-0x00007FFE87605000-memory.dmp

    Filesize

    8KB

  • memory/1732-1-0x0000000000EB0000-0x0000000000EDA000-memory.dmp

    Filesize

    168KB

  • memory/1732-2-0x0000000001680000-0x00000000016A4000-memory.dmp

    Filesize

    144KB

  • memory/1732-3-0x00000000016B0000-0x00000000016D6000-memory.dmp

    Filesize

    152KB

  • memory/1732-4-0x0000000003130000-0x0000000003154000-memory.dmp

    Filesize

    144KB

  • memory/1732-5-0x00007FFE87600000-0x00007FFE880C1000-memory.dmp

    Filesize

    10.8MB

  • memory/1732-18-0x00007FFE87600000-0x00007FFE880C1000-memory.dmp

    Filesize

    10.8MB