Overview

overview

10

Static

static

3

81b43cfc12...00.exe

windows7-x64

10

81b43cfc12...00.exe

windows10-2004-x64

8

Sharing

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General

  • Target

    81b43cfc12c88b2f8ff2f863bafe928a806bc6d80f5b30d16825daead2652800

  • Size

    3.2MB

  • Sample

    250326-en7vxsxtb1

  • MD5

    54ec3c82ae67489ce74cd85e69b5a8a5

  • SHA1

    674b4165c9679ea3626a7aeb3f4791e8869f4b7f

  • SHA256

    81b43cfc12c88b2f8ff2f863bafe928a806bc6d80f5b30d16825daead2652800

  • SHA512

    7407ff58c4808472f14c5d529dff1f276beb1ff6b1a3852c891fa37f8222f65a29b5f18bd6e0c029d08dc39996f6352e4007e13be6c61d628c45b41165f1dc47

  • SSDEEP

    98304:Gviz/27qWGq/TzuqCDl2Ptao7jA4nWm33Ns:Gviq75/TzufZhsNs

Score
10/10
njratndefense_evasiondiscoverypersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

N

C2

azrail.myftp.biz:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Targets

    • Target

      81b43cfc12c88b2f8ff2f863bafe928a806bc6d80f5b30d16825daead2652800

    • Size

      3.2MB

    • MD5

      54ec3c82ae67489ce74cd85e69b5a8a5

    • SHA1

      674b4165c9679ea3626a7aeb3f4791e8869f4b7f

    • SHA256

      81b43cfc12c88b2f8ff2f863bafe928a806bc6d80f5b30d16825daead2652800

    • SHA512

      7407ff58c4808472f14c5d529dff1f276beb1ff6b1a3852c891fa37f8222f65a29b5f18bd6e0c029d08dc39996f6352e4007e13be6c61d628c45b41165f1dc47

    • SSDEEP

      98304:Gviz/27qWGq/TzuqCDl2Ptao7jA4nWm33Ns:Gviq75/TzufZhsNs

    Score
    10/10
    njratndefense_evasiondiscoverypersistenceprivilege_escalationtrojan

    • Njrat family

      njrat

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Modifies Windows Firewall

      defense_evasion

    • Checks computer location settings

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

    • 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