Overview

overview

10

Static

static

10

Server.exe

windows10-1703-x64

10

Server.exe

windows7-x64

10

Server.exe

windows10-2004-x64

8

Server.exe

windows11-21h2-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28-09-2024 16:32

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General

  • Target

    Server.exe

  • Size

    37KB

  • MD5

    1017e5b6de8a0c5b1dba9df5e897cd61

  • SHA1

    562ca58caaa643bd5de025a8f776f0ae02befc1c

  • SHA256

    94835feda11875acad5156be4e5415324de8d5565c0655a5a8466cc89bd62914

  • SHA512

    1b351487495d646b14b22ccf965c608e8faa7ee1c56394b717ed31c137f90d6fc748e9494cb32ed6ae88d6e6784d320fbebde2db1ae5e7ad10757bdd84f31275

  • SSDEEP

    384:Hv5Zjj6icFri5Z7JAyk/G4OvhRZea6FwrAF+rMRTyN/0L+EcoinblneHQM3epzXP:P5LHJ7k/G4ObZr6GrM+rMRa8Nu6g9vt

Score
10/10
njratضحايا repodiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

ضحايا Repo

C2

147.185.221.21:49795

Mutex

f291972a40b718fa583ad65b4ccb4602

Attributes
  • reg_key

    f291972a40b718fa583ad65b4ccb4602

  • 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
  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • 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 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Users\Admin\AppData\Local\Temp\System.exe
      "C:\Users\Admin\AppData\Local\Temp\System.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2760
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1
T1091

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

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

    37KB

    MD5

    1017e5b6de8a0c5b1dba9df5e897cd61

    SHA1

    562ca58caaa643bd5de025a8f776f0ae02befc1c

    SHA256

    94835feda11875acad5156be4e5415324de8d5565c0655a5a8466cc89bd62914

    SHA512

    1b351487495d646b14b22ccf965c608e8faa7ee1c56394b717ed31c137f90d6fc748e9494cb32ed6ae88d6e6784d320fbebde2db1ae5e7ad10757bdd84f31275

    Download Submit

  • memory/2440-0-0x0000000074561000-0x0000000074562000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2440-1-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2440-2-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2440-10-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2760-12-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2760-11-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2760-22-0x0000000074560000-0x0000000074B0B000-memory.dmp

    Filesize

    5.7MB

    Download