Overview

overview

10

Static

static

10

0f3e42fb7c...e4.exe

windows7_x64

10

0f3e42fb7c...e4.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:40

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    0f3e42fb7ccf59729182144c549df0fae6c8d4621472ea065dc43e8591fbd7e4.exe

  • Size

    37KB

  • MD5

    01229e4400d2df4ca9b21cdc6bdf60a4

  • SHA1

    812fbece57b82d8e562443b6c463018c1a5278a5

  • SHA256

    0f3e42fb7ccf59729182144c549df0fae6c8d4621472ea065dc43e8591fbd7e4

  • SHA512

    10277b769b6ade3be7150dc2899f546466177580ccb15eecb0d718d7deac881007a880d6f4899cd539f7849d3417e3aa6bd95663d13894c28b30079f1237571d

Score
10/10
njratclientevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Client

C2

5.197.225.140:5552

Mutex

bd4e3358aa8606bcbc3644c88301f908

Attributes
  • reg_key

    bd4e3358aa8606bcbc3644c88301f908

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f3e42fb7ccf59729182144c549df0fae6c8d4621472ea065dc43e8591fbd7e4.exe
    "C:\Users\Admin\AppData\Local\Temp\0f3e42fb7ccf59729182144c549df0fae6c8d4621472ea065dc43e8591fbd7e4.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Users\Admin\AppData\Roaming\hugerein.exe
      "C:\Users\Admin\AppData\Roaming\hugerein.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:828
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\hugerein.exe" "hugerein.exe" ENABLE
        3⤵
          PID:4884

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\hugerein.exe
      Filesize

      37KB

      MD5

      01229e4400d2df4ca9b21cdc6bdf60a4

      SHA1

      812fbece57b82d8e562443b6c463018c1a5278a5

      SHA256

      0f3e42fb7ccf59729182144c549df0fae6c8d4621472ea065dc43e8591fbd7e4

      SHA512

      10277b769b6ade3be7150dc2899f546466177580ccb15eecb0d718d7deac881007a880d6f4899cd539f7849d3417e3aa6bd95663d13894c28b30079f1237571d

      Download Submit

    • C:\Users\Admin\AppData\Roaming\hugerein.exe
      Filesize

      37KB

      MD5

      01229e4400d2df4ca9b21cdc6bdf60a4

      SHA1

      812fbece57b82d8e562443b6c463018c1a5278a5

      SHA256

      0f3e42fb7ccf59729182144c549df0fae6c8d4621472ea065dc43e8591fbd7e4

      SHA512

      10277b769b6ade3be7150dc2899f546466177580ccb15eecb0d718d7deac881007a880d6f4899cd539f7849d3417e3aa6bd95663d13894c28b30079f1237571d

      Download Submit

    • memory/828-131-0x0000000000000000-mapping.dmp

      Download

    • memory/828-134-0x0000000074BC0000-0x0000000075171000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/2300-130-0x0000000074BC0000-0x0000000075171000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/4884-135-0x0000000000000000-mapping.dmp

      Download