Overview

overview

10

Static

static

10

Server.exe

windows10-2004-x64

10

Server.exe

windows10-ltsc_2021-x64

10

Server.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    Server.exe
  • Size 37KB
  • Sample260807-wh1yvs1bmb
  • SHA256 5b0b08de1583ed32f6510b0736a614fc5f5f39a823438a48f6aad2f743793f08
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
njrathackedbyviperdefense_evasiondiscoverypersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

  • njrat

Version

  • im523

Botnet

  • HacKedByViper

C2

  • viperalza7fgg-40476.portmap.host:40476

Mutex

  • 761a42b39d90bfdd9fb9f57269c50a4d

Attributes
  • reg_key

    761a42b39d90bfdd9fb9f57269c50a4d

  • splitter

    |'|'|

Targets

    • Target
      Server.exe
    • Size 37KB
    • SHA256 5b0b08de1583ed32f6510b0736a614fc5f5f39a823438a48f6aad2f743793f08
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    hackedbyviperdefense_evasiondiscoverynjratpersistenceprivilege_escalationtrojan

    • Family: njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Modifies Windows Firewall

      defense_evasion

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops autorun.inf file

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

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
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

2
T1547

Registry Run Keys / Startup Folder

2
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

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