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Overview

overview

10

Static

static

10

b15046e6f0...e6.exe

windows7-x64

10

b15046e6f0...e6.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2022, 23:17

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General

  • Target

    b15046e6f034f055047ad07a4ebde3a83364e5cc936f6823fb4b1b076deb1ae6.exe

  • Size

    23KB

  • MD5

    9db5a2b9971fe8d959bd02fd6d22e522

  • SHA1

    bbe109eae47f18f11dd6f338bfa745a009763b4e

  • SHA256

    b15046e6f034f055047ad07a4ebde3a83364e5cc936f6823fb4b1b076deb1ae6

  • SHA512

    d675831dcbd1578bd6a8286ed885ff844896cc0467aa07b226d265f85c9a15ba867969f0666d3c111c0b0e26f2b1485eb9570c41f2320aba37494aac5fbd4717

  • SSDEEP

    384:JoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZ1j:e7O89p2rRpcnuG

Score
10/10
njratnewevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

new

C2

174.127.99.136:200

Mutex

23dbefa9b4e28174ecb7bdfd4a7be0f4

Attributes
  • reg_key

    23dbefa9b4e28174ecb7bdfd4a7be0f4

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    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\b15046e6f034f055047ad07a4ebde3a83364e5cc936f6823fb4b1b076deb1ae6.exe
    "C:\Users\Admin\AppData\Local\Temp\b15046e6f034f055047ad07a4ebde3a83364e5cc936f6823fb4b1b076deb1ae6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1608
    • C:\Users\Admin\AppData\Local\Temp\Explore.exe
      "C:\Users\Admin\AppData\Local\Temp\Explore.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4872
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Explore.exe" "Explore.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2412

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Explore.exe
    Filesize

    23KB

    MD5

    9db5a2b9971fe8d959bd02fd6d22e522

    SHA1

    bbe109eae47f18f11dd6f338bfa745a009763b4e

    SHA256

    b15046e6f034f055047ad07a4ebde3a83364e5cc936f6823fb4b1b076deb1ae6

    SHA512

    d675831dcbd1578bd6a8286ed885ff844896cc0467aa07b226d265f85c9a15ba867969f0666d3c111c0b0e26f2b1485eb9570c41f2320aba37494aac5fbd4717

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\Explore.exe
    Filesize

    23KB

    MD5

    9db5a2b9971fe8d959bd02fd6d22e522

    SHA1

    bbe109eae47f18f11dd6f338bfa745a009763b4e

    SHA256

    b15046e6f034f055047ad07a4ebde3a83364e5cc936f6823fb4b1b076deb1ae6

    SHA512

    d675831dcbd1578bd6a8286ed885ff844896cc0467aa07b226d265f85c9a15ba867969f0666d3c111c0b0e26f2b1485eb9570c41f2320aba37494aac5fbd4717

    Download Submit

  • memory/1608-132-0x0000000075310000-0x00000000758C1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1608-136-0x0000000075310000-0x00000000758C1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4872-137-0x0000000075310000-0x00000000758C1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4872-139-0x0000000075310000-0x00000000758C1000-memory.dmp

    Filesize

    5.7MB

    Download