njrat | a40626fbe1122175c403f8510e1f6ad41cee213a87ce8252305e32e5071a170a

Analysis

max time kernel
149s
max time network
124s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:15

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General

Target

bcf1af9a5a93ae74ea1c79da9951c5be.exe
Size

29KB
MD5

bcf1af9a5a93ae74ea1c79da9951c5be
SHA1

6b0d2a1cea799118ad12980772242aba94011551
SHA256

9f99c298e78e35b51cb5dc56285be2a26c80b9388f179927d3d5ac90829bbafb
SHA512

7b2df96ccd09c5b3234019f23135a2f44651b89d88b7b6bf107d0710ee79466ceeda0f20f1bd4b1374a50018e2761d42e47b131a22836c990be06a96cedde025
SSDEEP

768:2Y7bXEI+Ge1gFaYqwzLeiBKh0p29SgRw1:l7bXh7RznKhG29jw1

Score

10^/10

njrat hacked defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HACKED

mrtorrent32.ddns.net:1177

Mutex

12ce4e06a81e8d54fd01d9b762f1b1bb

Attributes

reg_key
12ce4e06a81e8d54fd01d9b762f1b1bb
splitter
|'|'|

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
800	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\12ce4e06a81e8d54fd01d9b762f1b1bb.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\12ce4e06a81e8d54fd01d9b762f1b1bb.exe	system.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	system.exe

Loads dropped DLL 1 IoCs

pid	Process
2064	bcf1af9a5a93ae74ea1c79da9951c5be.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

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

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bcf1af9a5a93ae74ea1c79da9951c5be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe
2640	system.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2640	system.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 2640	2064	bcf1af9a5a93ae74ea1c79da9951c5be.exe	31
PID 2064 wrote to memory of 2640	2064	bcf1af9a5a93ae74ea1c79da9951c5be.exe	31
PID 2064 wrote to memory of 2640	2064	bcf1af9a5a93ae74ea1c79da9951c5be.exe	31
PID 2064 wrote to memory of 2640	2064	bcf1af9a5a93ae74ea1c79da9951c5be.exe	31
PID 2640 wrote to memory of 800	2640	system.exe	32
PID 2640 wrote to memory of 800	2640	system.exe	32
PID 2640 wrote to memory of 800	2640	system.exe	32
PID 2640 wrote to memory of 800	2640	system.exe	32

C:\Users\Admin\AppData\Local\Temp\bcf1af9a5a93ae74ea1c79da9951c5be.exe
"C:\Users\Admin\AppData\Local\Temp\bcf1af9a5a93ae74ea1c79da9951c5be.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2064
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2640
- - 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:800

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\system.exe

Filesize
29KB

MD5
bcf1af9a5a93ae74ea1c79da9951c5be

SHA1
6b0d2a1cea799118ad12980772242aba94011551

SHA256
9f99c298e78e35b51cb5dc56285be2a26c80b9388f179927d3d5ac90829bbafb

SHA512
7b2df96ccd09c5b3234019f23135a2f44651b89d88b7b6bf107d0710ee79466ceeda0f20f1bd4b1374a50018e2761d42e47b131a22836c990be06a96cedde025

Download Submit
memory/2064-0-0x0000000074171000-0x0000000074172000-memory.dmp

Filesize
4KB

Download
memory/2064-1-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/2064-2-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/2064-11-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-12-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-10-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-14-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-15-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download