njrat | c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326

General

Target

c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe
Size

43KB
MD5

2f83c5577880a80f07a337b5ac707939
SHA1

2be3aceb27e29972da3e9310b28d74e07efaa362
SHA256

c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326
SHA512

0c47458e7078a8d5b123a2c5477de5ac22a060deb07255726ab61808f68d730fdc996174f79c39231e5732d66edea5e04d111cb146f1eef65dfe49691c67f072

Score

10^/10

njrat system persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

system

C2

192.168.0.104:25565

Mutex

Windows Update2

Attributes

reg_key
Windows Update2
splitter
|Hassan|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

system32t.exe

pid process

1540 system32t.exe

pid	process
1540	system32t.exe

Drops startup file 2 IoCs

Processes:

system32t.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update2.exe	system32t.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update2.exe	system32t.exe

Loads dropped DLL 1 IoCs

Processes:

c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe

pid process

776 c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe

pid	process
776	c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

system32t.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\system32t.exe\" .."	system32t.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\system32t.exe\" .."	system32t.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 1 IoCs

Processes:

system32t.exe

pid process

1540 system32t.exe

pid	process
1540	system32t.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

system32t.exe

description	pid	process
Token: SeDebugPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe
Token: 33	1540	system32t.exe
Token: SeIncBasePriorityPrivilege	1540	system32t.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe

description	pid	process	target process
PID 776 wrote to memory of 1540	776	c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe	system32t.exe
PID 776 wrote to memory of 1540	776	c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe	system32t.exe
PID 776 wrote to memory of 1540	776	c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe	system32t.exe
PID 776 wrote to memory of 1540	776	c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe	system32t.exe

C:\Users\Admin\AppData\Local\Temp\c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe
"C:\Users\Admin\AppData\Local\Temp\c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:776

C:\Users\Admin\AppData\Roaming\system32t.exe
"C:\Users\Admin\AppData\Roaming\system32t.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1540

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\system32t.exe
Filesize
43KB

MD5
2f83c5577880a80f07a337b5ac707939

SHA1
2be3aceb27e29972da3e9310b28d74e07efaa362

SHA256
c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326

SHA512
0c47458e7078a8d5b123a2c5477de5ac22a060deb07255726ab61808f68d730fdc996174f79c39231e5732d66edea5e04d111cb146f1eef65dfe49691c67f072

Download Submit
C:\Users\Admin\AppData\Roaming\system32t.exe
Filesize
43KB

MD5
2f83c5577880a80f07a337b5ac707939

SHA1
2be3aceb27e29972da3e9310b28d74e07efaa362

SHA256
c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326

SHA512
0c47458e7078a8d5b123a2c5477de5ac22a060deb07255726ab61808f68d730fdc996174f79c39231e5732d66edea5e04d111cb146f1eef65dfe49691c67f072

Download Submit
\Users\Admin\AppData\Roaming\system32t.exe
Filesize
43KB

MD5
2f83c5577880a80f07a337b5ac707939

SHA1
2be3aceb27e29972da3e9310b28d74e07efaa362

SHA256
c0b321906f39b60c7505ced31ba18bc4f69605ca593b1dbda96959a26c462326

SHA512
0c47458e7078a8d5b123a2c5477de5ac22a060deb07255726ab61808f68d730fdc996174f79c39231e5732d66edea5e04d111cb146f1eef65dfe49691c67f072

Download Submit
memory/776-54-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/776-55-0x0000000074460000-0x0000000074A0B000-memory.dmp

Filesize
5.7MB

Download
memory/1540-57-0x0000000000000000-mapping.dmp

Download
memory/1540-61-0x0000000074460000-0x0000000074A0B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads