Overview

overview

10

Static

static

10

b88ea99a57...9e.exe

windows7-x64

10

b88ea99a57...9e.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b88ea99a578d819000485da4b80ee871488088804481dc91698986c0c90f7c9e

  • Size

    24KB

  • Sample

    241208-cxhahsxmgz

  • MD5

    9cf8c4a53d5e1c1646b07fd9a20f3df5

  • SHA1

    5b6bf82acb11421e90cede493d99931b750f23cd

  • SHA256

    b88ea99a578d819000485da4b80ee871488088804481dc91698986c0c90f7c9e

  • SHA512

    f21bcb90dfb9db76e09323152ad8bf5bee9f3a07c403e05e4f99efc557a318782a04af2140d73cef0c54f8fc9b3680b4881a2867470ff4fafd1b2f726cab9851

  • SSDEEP

    384:HcqbCK0l4h7o9SVyDGvENuh46/gJkOmMSW38mRvR6JZlbw8hqIusZzZt6bR:830py6vhxaRpcnun1

Score
10/10
njratnesckdiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

nesck

C2

gfknoux.localto.net:3435

Mutex

fda26501f9b381c7e35e3965cc3cee82

Attributes
  • reg_key

    fda26501f9b381c7e35e3965cc3cee82

  • splitter

    |'|'|

Targets

    • Target

      b88ea99a578d819000485da4b80ee871488088804481dc91698986c0c90f7c9e

    • Size

      24KB

    • MD5

      9cf8c4a53d5e1c1646b07fd9a20f3df5

    • SHA1

      5b6bf82acb11421e90cede493d99931b750f23cd

    • SHA256

      b88ea99a578d819000485da4b80ee871488088804481dc91698986c0c90f7c9e

    • SHA512

      f21bcb90dfb9db76e09323152ad8bf5bee9f3a07c403e05e4f99efc557a318782a04af2140d73cef0c54f8fc9b3680b4881a2867470ff4fafd1b2f726cab9851

    • SSDEEP

      384:HcqbCK0l4h7o9SVyDGvENuh46/gJkOmMSW38mRvR6JZlbw8hqIusZzZt6bR:830py6vhxaRpcnun1

    Score
    10/10
    njratnesckdiscoveryevasionpersistenceprivilege_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
    behavioral1behavioral2

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