Overview

overview

10

Static

static

10

4c0f695c40...b9.exe

windows7-x64

10

4c0f695c40...b9.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    164s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2022 23:16

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    4c0f695c4024706da28de651915101981018d3100856d421fb76f6d78b8adab9.exe

  • Size

    29KB

  • MD5

    cc1527601b9652935e9056cb92446af4

  • SHA1

    aae8b36b18e40a006ce13e64b02c85e46e22f458

  • SHA256

    4c0f695c4024706da28de651915101981018d3100856d421fb76f6d78b8adab9

  • SHA512

    77d34263df5ef22f99c176020d5163b19b1392c6833da14d864e9762a6b9e4d11e3613a2a161937871150c80df0dd43d9edea1cee1e621c0d45a2047839172a5

  • SSDEEP

    768:4Qv/27NYsDkfZPoIqlHepBKh0p29SgRcr:tm7N143wEKhG29jcr

Score
10/10
njratsystemevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

system

C2

saadk.no-ip.biz:1177

Mutex

12ce4e06a81e8d54fd01d9b762f1b1bb

Attributes
  • reg_key

    12ce4e06a81e8d54fd01d9b762f1b1bb

  • 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.

  • 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 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4c0f695c4024706da28de651915101981018d3100856d421fb76f6d78b8adab9.exe
    "C:\Users\Admin\AppData\Local\Temp\4c0f695c4024706da28de651915101981018d3100856d421fb76f6d78b8adab9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4348
    • C:\Users\Admin\AppData\Local\Temp\system.exe
      "C:\Users\Admin\AppData\Local\Temp\system.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2108

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

Loading Replay Monitor...

Downloads

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

    29KB

    MD5

    cc1527601b9652935e9056cb92446af4

    SHA1

    aae8b36b18e40a006ce13e64b02c85e46e22f458

    SHA256

    4c0f695c4024706da28de651915101981018d3100856d421fb76f6d78b8adab9

    SHA512

    77d34263df5ef22f99c176020d5163b19b1392c6833da14d864e9762a6b9e4d11e3613a2a161937871150c80df0dd43d9edea1cee1e621c0d45a2047839172a5

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\system.exe
    Filesize

    29KB

    MD5

    cc1527601b9652935e9056cb92446af4

    SHA1

    aae8b36b18e40a006ce13e64b02c85e46e22f458

    SHA256

    4c0f695c4024706da28de651915101981018d3100856d421fb76f6d78b8adab9

    SHA512

    77d34263df5ef22f99c176020d5163b19b1392c6833da14d864e9762a6b9e4d11e3613a2a161937871150c80df0dd43d9edea1cee1e621c0d45a2047839172a5

    Download Submit
  • memory/2108-136-0x0000000000000000-mapping.dmp
    Download
  • memory/4268-133-0x0000000000000000-mapping.dmp
    Download
  • memory/4268-138-0x00000000750D0000-0x0000000075681000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4268-139-0x00000000750D0000-0x0000000075681000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4348-132-0x00000000750D0000-0x0000000075681000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4348-137-0x00000000750D0000-0x0000000075681000-memory.dmp
    Filesize

    5.7MB

    Download