Overview

overview

10

Static

static

10

6239834a0e...8a.exe

windows7-x64

10

6239834a0e...8a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    190s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2022 14:32

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General

  • Target

    6239834a0e304149f87467947df4575fc775733d81caa5fe048d9f99d8db298a.exe

  • Size

    37KB

  • MD5

    a11c07b41dceb5d7cbb10c857b0fe48c

  • SHA1

    fa438d9f035df2d11d0a485006c99b3939b48eb1

  • SHA256

    6239834a0e304149f87467947df4575fc775733d81caa5fe048d9f99d8db298a

  • SHA512

    cdadb362cb71d638063cd47a2b2979b9a53368c15f2df63c5b53e713efb66938ee5acf325e84c933619e5ff0b6574a92b39a6568d297d8ba74b60546a47a2554

  • SSDEEP

    384:IJXzkit6Zf5W9cTYXyc/xDMiwzXhqn/KVFrAF+rMRTyN/0L+EcoinblneHQM3ep:yXSjjTYic/xw8/KnrM+rMRa8NuIPt

Score
10/10
njrathackerevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

hacker

C2

hacker228.ddns.net:7777

Mutex

d65b7ae301f2c83d267d8f3480777d2e

Attributes
  • reg_key

    d65b7ae301f2c83d267d8f3480777d2e

  • 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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6239834a0e304149f87467947df4575fc775733d81caa5fe048d9f99d8db298a.exe
    "C:\Users\Admin\AppData\Local\Temp\6239834a0e304149f87467947df4575fc775733d81caa5fe048d9f99d8db298a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3132
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3376
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:228

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

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

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

    37KB

    MD5

    a11c07b41dceb5d7cbb10c857b0fe48c

    SHA1

    fa438d9f035df2d11d0a485006c99b3939b48eb1

    SHA256

    6239834a0e304149f87467947df4575fc775733d81caa5fe048d9f99d8db298a

    SHA512

    cdadb362cb71d638063cd47a2b2979b9a53368c15f2df63c5b53e713efb66938ee5acf325e84c933619e5ff0b6574a92b39a6568d297d8ba74b60546a47a2554

    Download Submit
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    Filesize

    37KB

    MD5

    a11c07b41dceb5d7cbb10c857b0fe48c

    SHA1

    fa438d9f035df2d11d0a485006c99b3939b48eb1

    SHA256

    6239834a0e304149f87467947df4575fc775733d81caa5fe048d9f99d8db298a

    SHA512

    cdadb362cb71d638063cd47a2b2979b9a53368c15f2df63c5b53e713efb66938ee5acf325e84c933619e5ff0b6574a92b39a6568d297d8ba74b60546a47a2554

    Download Submit
  • memory/228-140-0x0000000000000000-mapping.dmp
    Download
  • memory/3132-132-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3132-133-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3132-137-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3376-134-0x0000000000000000-mapping.dmp
    Download
  • memory/3376-138-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3376-139-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

    Download