Overview

overview

10

Static

static

10

DangerousPayload.exe

windows7-x64

10

DangerousPayload.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    04-08-2022 21:27

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General

  • Target

    DangerousPayload.exe

  • Size

    37KB

  • MD5

    9bbb2f1dc80afe6ecf27b31794a02d32

  • SHA1

    bac66f84175fe186c478a340c2f31fde5f57d980

  • SHA256

    7aa11361505f0ea1e8bf02e1529a5104f8186da3d52f26409281f6d4783bc77f

  • SHA512

    341ff7add58a74c3aef78340e6c44ae05b8c8b0ba16c0d3d20a668f2923550faee171563bc8541ff0ef956002609bdda4337a484d470fca6528237bc170aac3e

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

susiahat24199a.ddns.net:5552

Mutex

b94fe95343d85bb18dd50d099af4eb73

Attributes
  • reg_key

    b94fe95343d85bb18dd50d099af4eb73

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DangerousPayload.exe
    "C:\Users\Admin\AppData\Local\Temp\DangerousPayload.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Users\Admin\server.exe
      "C:\Users\Admin\server.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1908
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1400
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM System32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1536

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\server.exe
    Filesize

    37KB

    MD5

    9bbb2f1dc80afe6ecf27b31794a02d32

    SHA1

    bac66f84175fe186c478a340c2f31fde5f57d980

    SHA256

    7aa11361505f0ea1e8bf02e1529a5104f8186da3d52f26409281f6d4783bc77f

    SHA512

    341ff7add58a74c3aef78340e6c44ae05b8c8b0ba16c0d3d20a668f2923550faee171563bc8541ff0ef956002609bdda4337a484d470fca6528237bc170aac3e

    Download Submit
  • C:\Users\Admin\server.exe
    Filesize

    37KB

    MD5

    9bbb2f1dc80afe6ecf27b31794a02d32

    SHA1

    bac66f84175fe186c478a340c2f31fde5f57d980

    SHA256

    7aa11361505f0ea1e8bf02e1529a5104f8186da3d52f26409281f6d4783bc77f

    SHA512

    341ff7add58a74c3aef78340e6c44ae05b8c8b0ba16c0d3d20a668f2923550faee171563bc8541ff0ef956002609bdda4337a484d470fca6528237bc170aac3e

    Download Submit
  • \Users\Admin\server.exe
    Filesize

    37KB

    MD5

    9bbb2f1dc80afe6ecf27b31794a02d32

    SHA1

    bac66f84175fe186c478a340c2f31fde5f57d980

    SHA256

    7aa11361505f0ea1e8bf02e1529a5104f8186da3d52f26409281f6d4783bc77f

    SHA512

    341ff7add58a74c3aef78340e6c44ae05b8c8b0ba16c0d3d20a668f2923550faee171563bc8541ff0ef956002609bdda4337a484d470fca6528237bc170aac3e

    Download Submit
  • memory/1096-54-0x0000000075321000-0x0000000075323000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1096-55-0x0000000074770000-0x0000000074D1B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1096-61-0x0000000074770000-0x0000000074D1B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1400-63-0x0000000000000000-mapping.dmp
    Download
  • memory/1536-64-0x0000000000000000-mapping.dmp
    Download
  • memory/1908-57-0x0000000000000000-mapping.dmp
    Download
  • memory/1908-62-0x0000000074770000-0x0000000074D1B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1908-66-0x0000000074770000-0x0000000074D1B000-memory.dmp
    Filesize

    5.7MB

    Download