njrat | 30c6dca8d7298ad8b76d2b4fb29ba10778537df7552e5aeafaad63ffa7287807

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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 victim discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

<- NjRAT 0.7d Horror Edition ->

Botnet

Victim

eu-west-36307.packetriot.net:22281

Mutex

6480365a57ae304293b6250c39f9b34b

Attributes

reg_key
6480365a57ae304293b6250c39f9b34b
splitter
Y262SUCZ4UJJ

Signatures

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

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
1084	dllhost.exe

Loads dropped DLL 1 IoCs

pid	Process
1300	Payload.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-1-5-21-3551809350-4263495960-1443967649-1000\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	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe
Token: 33	1084	dllhost.exe
Token: SeIncBasePriorityPrivilege	1084	dllhost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 1084	1300	Payload.exe	30
PID 1300 wrote to memory of 1084	1300	Payload.exe	30
PID 1300 wrote to memory of 1084	1300	Payload.exe	30
PID 1300 wrote to memory of 1084	1300	Payload.exe	30

C:\Users\Admin\AppData\Local\Temp\Payload.exe
"C:\Users\Admin\AppData\Local\Temp\Payload.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1300
- 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:1084

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

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\dllhost.exe

Filesize
55KB

MD5
411b64acfcc7f07971c630aa8d229dfa

SHA1
f8e02349ff1be29dfa98dc45a38077289670c1a6

SHA256
c5f77db7ad369d1ace046583b196f763465cd0692ffea635b8c036ba3ecda1bb

SHA512
63ec93dc64157e25a87346c9a7469be8ac367c099328525e4e6db70f7c696590d6fa46e9bf9dd3ef5c6ee60352f22390437cf1c17f537e6e4ca9f1ad9bf5d72e

Download Submit
memory/1084-11-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/1084-12-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/1084-14-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/1300-0-0x0000000074131000-0x0000000074132000-memory.dmp

Filesize
4KB

Download
memory/1300-1-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/1300-2-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/1300-10-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads