njrat | 089c68cc6ef6d1af0201f210b0e88935e6756540aba5521969022b581e1a52e6

General

Target

m4c050.exe
Size

43KB
MD5

104fe8e80032d42e1ba1118fd2049e8e
SHA1

d6e6695f27fdbce964983f611fc2f09534ea5a9d
SHA256

089c68cc6ef6d1af0201f210b0e88935e6756540aba5521969022b581e1a52e6
SHA512

d04f996e9399c0ab6b4a4f231e9307c37ea00f75e8c59a6072bfba159733f79cc90bb540c55508afffce0b00c6253f21846cfb6b3a759b89a6852c10fff7fe0a
SSDEEP

384:NZyUiFIB+oyitVv0O0EHafIuZzQIij+ZsNO3PlpJKkkjh/TzF7pWnp/greT0pqf7:nO+IliLvDW3uXQ/o0/+L

Score

10^/10

njrat hacked persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

212.ip.ply.gg:16355

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	m4c050.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe

Executes dropped EXE 1 IoCs

pid	Process
4588	Dllhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1464	m4c050.exe
4588	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe
Token: 33	4588	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4588	Dllhost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 4588	1464	m4c050.exe	90
PID 1464 wrote to memory of 4588	1464	m4c050.exe	90
PID 1464 wrote to memory of 4588	1464	m4c050.exe	90

C:\Users\Admin\AppData\Local\Temp\m4c050.exe
"C:\Users\Admin\AppData\Local\Temp\m4c050.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1464
- C:\Users\Admin\AppData\Roaming\Dllhost.exe
  "C:\Users\Admin\AppData\Roaming\Dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Dllhost.exe

Filesize
43KB

MD5
104fe8e80032d42e1ba1118fd2049e8e

SHA1
d6e6695f27fdbce964983f611fc2f09534ea5a9d

SHA256
089c68cc6ef6d1af0201f210b0e88935e6756540aba5521969022b581e1a52e6

SHA512
d04f996e9399c0ab6b4a4f231e9307c37ea00f75e8c59a6072bfba159733f79cc90bb540c55508afffce0b00c6253f21846cfb6b3a759b89a6852c10fff7fe0a

Download Submit
C:\Users\Admin\AppData\Roaming\Dllhost.exe

Filesize
43KB

MD5
104fe8e80032d42e1ba1118fd2049e8e

SHA1
d6e6695f27fdbce964983f611fc2f09534ea5a9d

SHA256
089c68cc6ef6d1af0201f210b0e88935e6756540aba5521969022b581e1a52e6

SHA512
d04f996e9399c0ab6b4a4f231e9307c37ea00f75e8c59a6072bfba159733f79cc90bb540c55508afffce0b00c6253f21846cfb6b3a759b89a6852c10fff7fe0a

Download Submit
C:\Users\Admin\AppData\Roaming\Dllhost.exe

Filesize
43KB

MD5
104fe8e80032d42e1ba1118fd2049e8e

SHA1
d6e6695f27fdbce964983f611fc2f09534ea5a9d

SHA256
089c68cc6ef6d1af0201f210b0e88935e6756540aba5521969022b581e1a52e6

SHA512
d04f996e9399c0ab6b4a4f231e9307c37ea00f75e8c59a6072bfba159733f79cc90bb540c55508afffce0b00c6253f21846cfb6b3a759b89a6852c10fff7fe0a

Download Submit
memory/1464-133-0x0000000000170000-0x0000000000182000-memory.dmp

Filesize
72KB

Download
memory/1464-134-0x0000000004AF0000-0x0000000004B8C000-memory.dmp

Filesize
624KB

Download
memory/1464-135-0x00000000053E0000-0x0000000005984000-memory.dmp

Filesize
5.6MB

Download
memory/1464-136-0x0000000004C20000-0x0000000004C30000-memory.dmp

Filesize
64KB

Download
memory/1464-137-0x0000000004F20000-0x0000000004FB2000-memory.dmp

Filesize
584KB

Download
memory/4588-147-0x0000000004C30000-0x0000000004C40000-memory.dmp

Filesize
64KB

Download
memory/4588-149-0x0000000004E50000-0x0000000004E5A000-memory.dmp

Filesize
40KB

Download
memory/4588-150-0x0000000004C30000-0x0000000004C40000-memory.dmp

Filesize
64KB

Download

Analysis

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