njrat | 7559e6ca8b77400f88bf4e67208a1c32570a670068eccae9e3d226cc5471bd47

Resubmissions

03/02/2025, 21:57

250203-1t5hmsvmat 10

03/02/2025, 04:37

250203-e896saslgn 10

31/01/2025, 18:35

250131-w8gmxatmc1 10

Analysis

max time kernel
149s
max time network
95s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250128-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250128-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
03/02/2025, 21:57

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General

Target

bazaar.2020.02/Trojan.MSIL.Disfa.exe
Size

29KB
MD5

343f28d15f8853545992389029be1dca
SHA1

961f81167a3666055e770322ddb6950d728dbfa3
SHA256

7b864591a77a15197d9f25ed3e625b50576ffc061f2849ac6fcc245d296b7357
SHA512

21c78cf94855d3689fa6e79a10fd17196eec45304ab78c3720a330d74ef86575528cbcfc5a117cebcc2a516eb48758294eba7fabeddf9738363963ba441c13ca
SSDEEP

384:eos5l7l7EMrof6oyr/5NxrimmqDWD4IePUGBsbh0w4wlAokw9OhgOL1vYRGOZzmg:y7GMroynbprsq04IePBKh0p29SgRAM

Score

10^/10

njrat clienta defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

clienta

achraf4.ddns.net:4500

Mutex

59d56b3983b444c86e2da951d0302f3b

Attributes

reg_key
59d56b3983b444c86e2da951d0302f3b
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
4660	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-1-5-21-849517464-2021344836-54366720-1000\Control Panel\International\Geo\Nation	Trojan.MSIL.Disfa.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\59d56b3983b444c86e2da951d0302f3b.exe	imagedegai.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\59d56b3983b444c86e2da951d0302f3b.exe	imagedegai.exe

Executes dropped EXE 1 IoCs

pid	Process
5072	imagedegai.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-1-5-21-849517464-2021344836-54366720-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\59d56b3983b444c86e2da951d0302f3b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\imagedegai.exe\" .."	imagedegai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\59d56b3983b444c86e2da951d0302f3b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\imagedegai.exe\" .."	imagedegai.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	Trojan.MSIL.Disfa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	imagedegai.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe
5072	imagedegai.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5072	imagedegai.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 5072	1176	Trojan.MSIL.Disfa.exe	83
PID 1176 wrote to memory of 5072	1176	Trojan.MSIL.Disfa.exe	83
PID 1176 wrote to memory of 5072	1176	Trojan.MSIL.Disfa.exe	83
PID 5072 wrote to memory of 4660	5072	imagedegai.exe	84
PID 5072 wrote to memory of 4660	5072	imagedegai.exe	84
PID 5072 wrote to memory of 4660	5072	imagedegai.exe	84

C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Disfa.exe
"C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Disfa.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Local\Temp\imagedegai.exe
  "C:\Users\Admin\AppData\Local\Temp\imagedegai.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:5072
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\imagedegai.exe" "imagedegai.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4660

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

Replay Monitor

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Downloads

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

Filesize
29KB

MD5
343f28d15f8853545992389029be1dca

SHA1
961f81167a3666055e770322ddb6950d728dbfa3

SHA256
7b864591a77a15197d9f25ed3e625b50576ffc061f2849ac6fcc245d296b7357

SHA512
21c78cf94855d3689fa6e79a10fd17196eec45304ab78c3720a330d74ef86575528cbcfc5a117cebcc2a516eb48758294eba7fabeddf9738363963ba441c13ca

Download Submit
memory/1176-0-0x0000000075482000-0x0000000075483000-memory.dmp

Filesize
4KB

Download
memory/1176-1-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/1176-2-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/1176-6-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/5072-5-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/5072-7-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/5072-8-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/5072-9-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download