Overview

overview

10

Static

static

10

cnct.exe

windows7-x64

10

cnct.exe

windows10-2004-x64

8

Sharing

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General

  • Target

    cnct.exe

  • Size

    37KB

  • Sample

    241216-g3rtcsyrgk

  • MD5

    cbc4f2b569739e02f228eb0b3552e6d4

  • SHA1

    16311eee886788bf935b1cc262677c911720dd67

  • SHA256

    d4b85844f374cf0fc56326afea865c2b9c773c60bfffe0870795a7a4e8b0201f

  • SHA512

    abb9bb78ded6dd5f2583466628b4c64515ff1941d6f39f232a380bb207358fcb99c50e019614bd8d95ca152442fcd8796605d1aa5db365e168645804c1e58ab7

  • SSDEEP

    768:g20DwODZX8f22s9aVIrM+rMRa8NuSNvt:g/TZM+2sEVT+gRJNVN

Score
10/10
njratdock.exediscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

dock.exe

C2

pool-tournaments.gl.at.ply.gg:7445

Mutex

ec1d783eda90ea4f1a73218af4fd58aa

Attributes
  • reg_key

    ec1d783eda90ea4f1a73218af4fd58aa

  • splitter

    |'|'|

Targets

    • Target

      cnct.exe

    • Size

      37KB

    • MD5

      cbc4f2b569739e02f228eb0b3552e6d4

    • SHA1

      16311eee886788bf935b1cc262677c911720dd67

    • SHA256

      d4b85844f374cf0fc56326afea865c2b9c773c60bfffe0870795a7a4e8b0201f

    • SHA512

      abb9bb78ded6dd5f2583466628b4c64515ff1941d6f39f232a380bb207358fcb99c50e019614bd8d95ca152442fcd8796605d1aa5db365e168645804c1e58ab7

    • SSDEEP

      768:g20DwODZX8f22s9aVIrM+rMRa8NuSNvt:g/TZM+2sEVT+gRJNVN

    Score
    10/10
    njratdock.exediscoveryevasionpersistenceprivilege_escalationtrojan

    • Njrat family

      njrat

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops autorun.inf file

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Tasks