njrat | 30c6dca8d7298ad8b76d2b4fb29ba10778537df7552e5aeafaad63ffa7287807

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 13:34

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General

Target

Payload.exe
Size

55KB
MD5

411b64acfcc7f07971c630aa8d229dfa
SHA1

f8e02349ff1be29dfa98dc45a38077289670c1a6
SHA256

c5f77db7ad369d1ace046583b196f763465cd0692ffea635b8c036ba3ecda1bb
SHA512

63ec93dc64157e25a87346c9a7469be8ac367c099328525e4e6db70f7c696590d6fa46e9bf9dd3ef5c6ee60352f22390437cf1c17f537e6e4ca9f1ad9bf5d72e
SSDEEP

768:8mPpUKt1ManMr3Z2NaDyBmH3UekSNemwFvfu0YMDHPs4L7XJSxI3pmhm:8my4DnFNaDyByfDzwsNMD7XExI3pmhm

Score

10^/10

njrat discovery persistence trojan

Malware Config

Signatures

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

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	Payload.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6480365a57ae304293b6250c39f9b34b.exe	dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6480365a57ae304293b6250c39f9b34b.exe	dllhost.exe

Executes dropped EXE 1 IoCs

pid	Process
1704	dllhost.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6480365a57ae304293b6250c39f9b34b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .."	dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\6480365a57ae304293b6250c39f9b34b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .."	dllhost.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	Payload.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dllhost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe
Token: 33	1704	dllhost.exe
Token: SeIncBasePriorityPrivilege	1704	dllhost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 1704	5112	Payload.exe	84
PID 5112 wrote to memory of 1704	5112	Payload.exe	84
PID 5112 wrote to memory of 1704	5112	Payload.exe	84

C:\Users\Admin\AppData\Local\Temp\Payload.exe
"C:\Users\Admin\AppData\Local\Temp\Payload.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Users\Admin\AppData\Local\Temp\dllhost.exe
  "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1704

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

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\dllhost.exe

Filesize
55KB

MD5
411b64acfcc7f07971c630aa8d229dfa

SHA1
f8e02349ff1be29dfa98dc45a38077289670c1a6

SHA256
c5f77db7ad369d1ace046583b196f763465cd0692ffea635b8c036ba3ecda1bb

SHA512
63ec93dc64157e25a87346c9a7469be8ac367c099328525e4e6db70f7c696590d6fa46e9bf9dd3ef5c6ee60352f22390437cf1c17f537e6e4ca9f1ad9bf5d72e

Download Submit
memory/1704-12-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/1704-15-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/1704-14-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/1704-17-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/5112-0-0x0000000074E92000-0x0000000074E93000-memory.dmp

Filesize
4KB

Download
memory/5112-1-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/5112-2-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/5112-13-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads