njrat | 62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/01/2025, 03:04

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General

Target

62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51N.exe
Size

288KB
MD5

6e75f0291147c694689bfec9afd67240
SHA1

90e1d7f3fafb8d22aea7236d1b58f8c0a79c84c2
SHA256

62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51
SHA512

3f734d44ee93b50f4e7f14dfec45d1963804767e29bbadbf35836bde66f89a3ebfdef2e369227b471415feab231c583f1f7974054c9be0207949b5349ea2fc3e
SSDEEP

6144:swn0V1pukGg2CMIBAAgBNGWyv6oh7e5t:Ny1DsgAAX2o

Score

10^/10

njrat defense_evasion persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2692	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\server.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\server.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2644	62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51N.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\def9b6cd3f2b0c43097dfbc918862b82 = "C:\\Users\\Admin\\AppData\\Roaming\\server.exe"	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\def9b6cd3f2b0c43097dfbc918862b82 = "C:\\Users\\Admin\\AppData\\Roaming\\server.exe"	server.exe

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.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2772	2644	62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51N.exe	31
PID 2644 wrote to memory of 2772	2644	62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51N.exe	31
PID 2644 wrote to memory of 2772	2644	62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51N.exe	31
PID 2772 wrote to memory of 2692	2772	server.exe	33
PID 2772 wrote to memory of 2692	2772	server.exe	33
PID 2772 wrote to memory of 2692	2772	server.exe	33

C:\Users\Admin\AppData\Local\Temp\62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51N.exe
"C:\Users\Admin\AppData\Local\Temp\62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51N.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Users\Admin\AppData\Roaming\server.exe
  C:\Users\Admin\AppData\Roaming\server.exe
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2772
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram C:\Users\Admin\AppData\Roaming\server.exe "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\server.exe

Filesize
288KB

MD5
6e75f0291147c694689bfec9afd67240

SHA1
90e1d7f3fafb8d22aea7236d1b58f8c0a79c84c2

SHA256
62af3932f71be7c5b9e66513db818c230999323a36c1967cfb6ee72414c4ba51

SHA512
3f734d44ee93b50f4e7f14dfec45d1963804767e29bbadbf35836bde66f89a3ebfdef2e369227b471415feab231c583f1f7974054c9be0207949b5349ea2fc3e

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads