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

23KB
MD5

27725ba2001158dcad12407e7bd40e6f
SHA1

0c9330a50afd2fcd69886631fc3828a0703b22e7
SHA256

bb42676345c8aed263ed1e32c7ce22c5e6a9838a92c21d376e39356db0dbd940
SHA512

e8f6112588f1ed24c39f07df9ff3bedcf7d2f5a991ed3752d0fa1fa886d02e2ab378a7cfdb5996bbb900d6b5881957398e510d775ddd16b9e949e3526435ffb0
SSDEEP

384:cluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZOaP:LOmhtIiRpcnuB8

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
3204	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-1-5-21-2839013668-2276131261-2828740280-1000\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\3d79ec31008ac64ce62e03840dc4007e.exe	micro.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3d79ec31008ac64ce62e03840dc4007e.exe	micro.exe

Executes dropped EXE 1 IoCs

pid	Process
1280	micro.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-1-5-21-2839013668-2276131261-2828740280-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3d79ec31008ac64ce62e03840dc4007e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\micro.exe\" .."	micro.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\3d79ec31008ac64ce62e03840dc4007e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\micro.exe\" .."	micro.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	micro.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe
Token: 33	1280	micro.exe
Token: SeIncBasePriorityPrivilege	1280	micro.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 1280	4960	Trojan.MSIL.Disfa.exe	83
PID 4960 wrote to memory of 1280	4960	Trojan.MSIL.Disfa.exe	83
PID 4960 wrote to memory of 1280	4960	Trojan.MSIL.Disfa.exe	83
PID 1280 wrote to memory of 3204	1280	micro.exe	84
PID 1280 wrote to memory of 3204	1280	micro.exe	84
PID 1280 wrote to memory of 3204	1280	micro.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:4960
- C:\Users\Admin\AppData\Local\Temp\micro.exe
  "C:\Users\Admin\AppData\Local\Temp\micro.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\micro.exe" "micro.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3204

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\micro.exe

Filesize
23KB

MD5
27725ba2001158dcad12407e7bd40e6f

SHA1
0c9330a50afd2fcd69886631fc3828a0703b22e7

SHA256
bb42676345c8aed263ed1e32c7ce22c5e6a9838a92c21d376e39356db0dbd940

SHA512
e8f6112588f1ed24c39f07df9ff3bedcf7d2f5a991ed3752d0fa1fa886d02e2ab378a7cfdb5996bbb900d6b5881957398e510d775ddd16b9e949e3526435ffb0

Download Submit
memory/1280-15-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1280-16-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1280-18-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1280-19-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-0-0x0000000075242000-0x0000000075243000-memory.dmp

Filesize
4KB

Download
memory/4960-1-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-2-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-17-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads