Overview

overview

10

Static

static

10

5b31c351ae...0N.exe

windows7-x64

10

5b31c351ae...0N.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    120s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-09-2024 18:16

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General

  • Target

    5b31c351ae35eff5d1db9feab78aa530N.exe

  • Size

    37KB

  • MD5

    5b31c351ae35eff5d1db9feab78aa530

  • SHA1

    c1056ae6320d74ff2f7c68e0163847ee61f64322

  • SHA256

    208981bbfc13638805c65b2b38f160866ef96f73089f10358172960742879f49

  • SHA512

    b906104290708dd4c22c718552492cd59efa7e6ef1d5e8692d7a013f05bed62dee360837f491b7ebac0c9e13716889afaf64a70989996a65e19330cbf16634ac

  • SSDEEP

    384:U/NqiUx54NLHdayszfhen9XsWiXFrAF+rMRTyN/0L+EcoinblneHQM3epzX0QNr8:ArZdJszfhex9i1rM+rMRa8NuyQmt

Score
10/10
njrathackeddiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

netalant-45354.portmap.io:45354

Mutex

a381333f28d6355f51765e61000056f1

Attributes
  • reg_key

    a381333f28d6355f51765e61000056f1

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • 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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe
    "C:\Users\Admin\AppData\Local\Temp\5b31c351ae35eff5d1db9feab78aa530N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:236
    • C:\Users\Admin\AppData\Local\Temp\dllhost.exe
      "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2396
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\dllhost.exe" "dllhost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2744

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

  • C:\Users\Admin\AppData\Local\Temp\dllhost.exe
    Filesize

    37KB

    MD5

    5b31c351ae35eff5d1db9feab78aa530

    SHA1

    c1056ae6320d74ff2f7c68e0163847ee61f64322

    SHA256

    208981bbfc13638805c65b2b38f160866ef96f73089f10358172960742879f49

    SHA512

    b906104290708dd4c22c718552492cd59efa7e6ef1d5e8692d7a013f05bed62dee360837f491b7ebac0c9e13716889afaf64a70989996a65e19330cbf16634ac

    Download Submit

  • memory/236-0-0x0000000074D11000-0x0000000074D12000-memory.dmp

    Filesize

    4KB

    Download

  • memory/236-1-0x0000000074D10000-0x00000000752BB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/236-2-0x0000000074D10000-0x00000000752BB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/236-10-0x0000000074D10000-0x00000000752BB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2396-11-0x0000000074D10000-0x00000000752BB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2396-12-0x0000000074D10000-0x00000000752BB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2396-14-0x0000000074D10000-0x00000000752BB000-memory.dmp

    Filesize

    5.7MB

    Download