Overview

overview

10

Static

static

10

Lammer.exe

windows10-ltsc 2021-x64

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General

  • Target

    Lammer.exe

  • Size

    23KB

  • Sample

    250122-szsr2asqfz

  • MD5

    8ef1c362e7a42893a331a657d021d665

  • SHA1

    fdfe06f05c2a51ef8968ddc1d9a7595d694c93f8

  • SHA256

    db27bc172a5de048b3514746a8d78bfda52828ac10bf929fc89839b2cdc9deab

  • SHA512

    978e8ea7504b32f1d4f18a34f7822c60593ea5bda821cd63d77b7e2e9b13f4fabfc5f89ec681cbcf88669138b2936394761e4da58e223d80c3948e28148ce299

  • SSDEEP

    384:hYmdk8XvCJrQLdRGSiEYH7Y65gPyx6BDXNRmRvR6JZlbw8hqIusZzZFP:WwWktitaeRpcnuS

Score
10/10
njratlammerdefense_evasiondiscoverypersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Lammer

C2

station-gps.gl.at.ply.gg:26933

Mutex

ded5a8703334377d83da00a864706211

Attributes
  • reg_key

    ded5a8703334377d83da00a864706211

  • splitter

    |'|'|

Targets

    • Target

      Lammer.exe

    • Size

      23KB

    • MD5

      8ef1c362e7a42893a331a657d021d665

    • SHA1

      fdfe06f05c2a51ef8968ddc1d9a7595d694c93f8

    • SHA256

      db27bc172a5de048b3514746a8d78bfda52828ac10bf929fc89839b2cdc9deab

    • SHA512

      978e8ea7504b32f1d4f18a34f7822c60593ea5bda821cd63d77b7e2e9b13f4fabfc5f89ec681cbcf88669138b2936394761e4da58e223d80c3948e28148ce299

    • SSDEEP

      384:hYmdk8XvCJrQLdRGSiEYH7Y65gPyx6BDXNRmRvR6JZlbw8hqIusZzZFP:WwWktitaeRpcnuS

    Score
    10/10
    njratdefense_evasiondiscoverypersistenceprivilege_escalationtrojan

    • Njrat family

      njrat

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Disables Task Manager via registry modification

      defense_evasion

    • Modifies Windows Firewall

      defense_evasion

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

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

Collection

Command and Control

Exfiltration

Impact

Tasks