njrat | 35916e8b40ec27b8f3a931566a94f5a464dc9e5783c7fca1bdd194e7193bf0d7

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:17

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General

Target

d61b23d4acf185dc6322a40c7f0f56e0.exe
Size

23KB
MD5

d61b23d4acf185dc6322a40c7f0f56e0
SHA1

90f6f4fa60866f3704511f12b6453e4104572336
SHA256

d7322f0f7be2eee421ed79fd2be0d8a01d38b0b8663b6c6a1eb29afe4d63f6e0
SHA512

a72d51948bae56df0bab442b5b8a8e04f8eba03cb102a9962cd5582830af157d961844d2918390dc1ee74fb6814996ccd76ba4ac23a57d0cd6a8c2db11562e86
SSDEEP

384:rweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZuf:MLq411eRpcnuf

Score

10^/10

njrat defense_evasion discovery 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
5032	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	d61b23d4acf185dc6322a40c7f0f56e0.exe

Executes dropped EXE 1 IoCs

pid	Process
2244	server.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-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0f281b12f603c40d203a8a7911c030da = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0f281b12f603c40d203a8a7911c030da = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d61b23d4acf185dc6322a40c7f0f56e0.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe
Token: 33	2244	server.exe
Token: SeIncBasePriorityPrivilege	2244	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 2244	1388	d61b23d4acf185dc6322a40c7f0f56e0.exe	94
PID 1388 wrote to memory of 2244	1388	d61b23d4acf185dc6322a40c7f0f56e0.exe	94
PID 1388 wrote to memory of 2244	1388	d61b23d4acf185dc6322a40c7f0f56e0.exe	94
PID 2244 wrote to memory of 5032	2244	server.exe	97
PID 2244 wrote to memory of 5032	2244	server.exe	97
PID 2244 wrote to memory of 5032	2244	server.exe	97

C:\Users\Admin\AppData\Local\Temp\d61b23d4acf185dc6322a40c7f0f56e0.exe
"C:\Users\Admin\AppData\Local\Temp\d61b23d4acf185dc6322a40c7f0f56e0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2244
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:5032

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

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
23KB

MD5
d61b23d4acf185dc6322a40c7f0f56e0

SHA1
90f6f4fa60866f3704511f12b6453e4104572336

SHA256
d7322f0f7be2eee421ed79fd2be0d8a01d38b0b8663b6c6a1eb29afe4d63f6e0

SHA512
a72d51948bae56df0bab442b5b8a8e04f8eba03cb102a9962cd5582830af157d961844d2918390dc1ee74fb6814996ccd76ba4ac23a57d0cd6a8c2db11562e86

Download Submit
memory/1388-0-0x0000000074B82000-0x0000000074B83000-memory.dmp

Filesize
4KB

Download
memory/1388-1-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/1388-2-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/1388-3-0x0000000074B82000-0x0000000074B83000-memory.dmp

Filesize
4KB

Download
memory/1388-4-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/1388-15-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/1388-14-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/2244-16-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/2244-17-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/2244-18-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads