njrat | 7237dd5e4e0c1f2bb79a3ede0919cddf1cac7f1095deb1070275ac4669691c65

General

Target

иуеr.exe
Size

25KB
MD5

ae72c198c0825712f203e258571c0e87
SHA1

066ef64d5f5bb96e1714247c97aaf291907a7b3f
SHA256

7237dd5e4e0c1f2bb79a3ede0919cddf1cac7f1095deb1070275ac4669691c65
SHA512

a48c90badd2346df3e8f1cb1807b9f22177835aba52f2718ed8bc0c00fd4f5020958fe6e8b02c23c1c7380b68c96b1ad17dee51a536a0a26e4f98598354604a1

Score

10^/10

njrat gay persistence suricata trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

gay

C2

7.tcp.eu.ngrok.io:14345

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata
Executes dropped EXE 3 IoCs

Processes:

Dllhost.exeServer.exeServer.exe

pid process

1088 Dllhost.exe
1248 Server.exe
1972 Server.exe

pid	process
1088	Dllhost.exe
1248	Server.exe
1972	Server.exe

Drops startup file 2 IoCs

Processes:

Dllhost.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Dllhost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .."	Dllhost.exe

Drops file in Windows directory 2 IoCs

Processes:

иуеr.exeDllhost.exe

description ioc process

File created C:\Windows\Dllhost.exe иуеr.exe
File opened for modification C:\Windows\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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1332 schtasks.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Dllhost.exe

pid process

1088 Dllhost.exe

description	ioc	process
File created	C:\Windows\Dllhost.exe	иуеr.exe
File opened for modification	C:\Windows\Dllhost.exe	Dllhost.exe

pid	process
1332	schtasks.exe

pid	process
1088	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

Dllhost.exe

description	pid	process
Token: SeDebugPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe
Token: 33	1088	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1088	Dllhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

иуеr.exeDllhost.exetaskeng.exe

description	pid	process	target process
PID 1944 wrote to memory of 1088	1944	иуеr.exe	Dllhost.exe
PID 1944 wrote to memory of 1088	1944	иуеr.exe	Dllhost.exe
PID 1944 wrote to memory of 1088	1944	иуеr.exe	Dllhost.exe
PID 1088 wrote to memory of 1332	1088	Dllhost.exe	schtasks.exe
PID 1088 wrote to memory of 1332	1088	Dllhost.exe	schtasks.exe
PID 1088 wrote to memory of 1332	1088	Dllhost.exe	schtasks.exe
PID 548 wrote to memory of 1248	548	taskeng.exe	Server.exe
PID 548 wrote to memory of 1248	548	taskeng.exe	Server.exe
PID 548 wrote to memory of 1248	548	taskeng.exe	Server.exe
PID 548 wrote to memory of 1972	548	taskeng.exe	Server.exe
PID 548 wrote to memory of 1972	548	taskeng.exe	Server.exe
PID 548 wrote to memory of 1972	548	taskeng.exe	Server.exe

C:\Users\Admin\AppData\Local\Temp\иуеr.exe
"C:\Users\Admin\AppData\Local\Temp\иуеr.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\Dllhost.exe
"C:\Windows\Dllhost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1088

C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
3⤵
- Creates scheduled task(s)
PID:1332

C:\Windows\system32\taskeng.exe
taskeng.exe {1B9D5FB8-9EC8-4154-833E-8D0C67F61B24} S-1-5-21-1083475884-596052423-1669053738-1000:WYZSGDWS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:548

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
2⤵
- Executes dropped EXE
PID:1248

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
2⤵
- Executes dropped EXE
PID:1972

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
25KB

MD5
ae72c198c0825712f203e258571c0e87

SHA1
066ef64d5f5bb96e1714247c97aaf291907a7b3f

SHA256
7237dd5e4e0c1f2bb79a3ede0919cddf1cac7f1095deb1070275ac4669691c65

SHA512
a48c90badd2346df3e8f1cb1807b9f22177835aba52f2718ed8bc0c00fd4f5020958fe6e8b02c23c1c7380b68c96b1ad17dee51a536a0a26e4f98598354604a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
25KB

MD5
ae72c198c0825712f203e258571c0e87

SHA1
066ef64d5f5bb96e1714247c97aaf291907a7b3f

SHA256
7237dd5e4e0c1f2bb79a3ede0919cddf1cac7f1095deb1070275ac4669691c65

SHA512
a48c90badd2346df3e8f1cb1807b9f22177835aba52f2718ed8bc0c00fd4f5020958fe6e8b02c23c1c7380b68c96b1ad17dee51a536a0a26e4f98598354604a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
25KB

MD5
ae72c198c0825712f203e258571c0e87

SHA1
066ef64d5f5bb96e1714247c97aaf291907a7b3f

SHA256
7237dd5e4e0c1f2bb79a3ede0919cddf1cac7f1095deb1070275ac4669691c65

SHA512
a48c90badd2346df3e8f1cb1807b9f22177835aba52f2718ed8bc0c00fd4f5020958fe6e8b02c23c1c7380b68c96b1ad17dee51a536a0a26e4f98598354604a1

Download Submit
C:\Windows\Dllhost.exe
Filesize
25KB

MD5
ae72c198c0825712f203e258571c0e87

SHA1
066ef64d5f5bb96e1714247c97aaf291907a7b3f

SHA256
7237dd5e4e0c1f2bb79a3ede0919cddf1cac7f1095deb1070275ac4669691c65

SHA512
a48c90badd2346df3e8f1cb1807b9f22177835aba52f2718ed8bc0c00fd4f5020958fe6e8b02c23c1c7380b68c96b1ad17dee51a536a0a26e4f98598354604a1

Download Submit
C:\Windows\Dllhost.exe
Filesize
25KB

MD5
ae72c198c0825712f203e258571c0e87

SHA1
066ef64d5f5bb96e1714247c97aaf291907a7b3f

SHA256
7237dd5e4e0c1f2bb79a3ede0919cddf1cac7f1095deb1070275ac4669691c65

SHA512
a48c90badd2346df3e8f1cb1807b9f22177835aba52f2718ed8bc0c00fd4f5020958fe6e8b02c23c1c7380b68c96b1ad17dee51a536a0a26e4f98598354604a1

Download Submit
memory/1088-60-0x0000000000390000-0x0000000000398000-memory.dmp

Filesize
32KB

Download
memory/1088-62-0x0000000001D20000-0x0000000001D2A000-memory.dmp

Filesize
40KB

Download
memory/1088-57-0x0000000000000000-mapping.dmp

Download
memory/1248-63-0x0000000000000000-mapping.dmp

Download
memory/1248-66-0x0000000000F40000-0x0000000000F48000-memory.dmp

Filesize
32KB

Download
memory/1332-61-0x0000000000000000-mapping.dmp

Download
memory/1944-54-0x0000000000D20000-0x0000000000D28000-memory.dmp

Filesize
32KB

Download
memory/1944-56-0x000007FEFBA81000-0x000007FEFBA83000-memory.dmp

Filesize
8KB

Download
memory/1944-55-0x0000000000270000-0x0000000000282000-memory.dmp

Filesize
72KB

Download
memory/1972-67-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads