Overview

overview

10

Static

static

10

sample.exe

windows7-x64

10

sample.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-01-2025 16:10

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General

  • Target

    sample.exe

  • Size

    23KB

  • MD5

    6ab8a935e837a6560daa6ef33ee08c29

  • SHA1

    6fc0308bc5f99c5f919f6c11dfe22646f6b5b0f3

  • SHA256

    043863c269881fc835c4128cdb9c7ffe8687ee8dbe628bece027ed14a37695a3

  • SHA512

    f7da46bff61ffe59f53a2b12c07918a9f6d7ad921f2e6e440dcfc79fd97f98732c00a542d371bf5c60ded3d239f8bcf67937e53b98912cb8cbd46a0fe69db497

  • SSDEEP

    384:o8aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZ8kr:nXcwt3tRpcnuJy

Score
10/10
njrathackeddiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

279f6960ed84a752570aca7fb2dc1552

Attributes
  • reg_key

    279f6960ed84a752570aca7fb2dc1552

  • splitter

    |'|'|

Signatures

  • Njrat family
    njrat
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\sample.exe
    "C:\Users\Admin\AppData\Local\Temp\sample.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1924
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2576

Network

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

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\server.exe
    Filesize

    23KB

    MD5

    6ab8a935e837a6560daa6ef33ee08c29

    SHA1

    6fc0308bc5f99c5f919f6c11dfe22646f6b5b0f3

    SHA256

    043863c269881fc835c4128cdb9c7ffe8687ee8dbe628bece027ed14a37695a3

    SHA512

    f7da46bff61ffe59f53a2b12c07918a9f6d7ad921f2e6e440dcfc79fd97f98732c00a542d371bf5c60ded3d239f8bcf67937e53b98912cb8cbd46a0fe69db497

    Download Submit

  • memory/1924-0-0x0000000074561000-0x0000000074562000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1924-1-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1924-2-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1924-10-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2776-11-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2776-12-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2776-13-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download