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
    209s
  • max time network
    210s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    28-09-2024 16:34

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General

  • Target

    Server.exe

  • Size

    37KB

  • MD5

    0c598f2b2f1ae3f98fa4b71bb5e0054e

  • SHA1

    37dff49aab529fca2a2369a363edee32534079ff

  • SHA256

    9414d6a46eb57856af3756f18c6393a2192d1bd83c7ca0d8c99787379e4a3199

  • SHA512

    ee5b91744f487b4003bb140767a8b99e1db96605de6a5026aaab2e71c3e00243a8191efd4dc33f43a5c4f8b17c52397cc4ad76c85b1b66abc56cdf0f2b289aed

  • SSDEEP

    384:xv5Zjj6icFri5Z7JAyk/G4OvhRZea6FwrAF+rMRTyN/0L+EcoinblneHQM3epzXi:t5LHJ7k/G4ObZr6GrM+rMRa8Nu6g9gt

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
  • 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 49 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4676
    • 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:2784
      • 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:4860

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

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

    37KB

    MD5

    0c598f2b2f1ae3f98fa4b71bb5e0054e

    SHA1

    37dff49aab529fca2a2369a363edee32534079ff

    SHA256

    9414d6a46eb57856af3756f18c6393a2192d1bd83c7ca0d8c99787379e4a3199

    SHA512

    ee5b91744f487b4003bb140767a8b99e1db96605de6a5026aaab2e71c3e00243a8191efd4dc33f43a5c4f8b17c52397cc4ad76c85b1b66abc56cdf0f2b289aed

    Download Submit

  • memory/2784-10-0x0000000073830000-0x0000000073DE0000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2784-11-0x0000000073830000-0x0000000073DE0000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2784-21-0x0000000073830000-0x0000000073DE0000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2784-22-0x0000000073830000-0x0000000073DE0000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4676-0-0x0000000073831000-0x0000000073832000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4676-1-0x0000000073830000-0x0000000073DE0000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4676-2-0x0000000073830000-0x0000000073DE0000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4676-9-0x0000000073830000-0x0000000073DE0000-memory.dmp

    Filesize

    5.7MB

    Download