njrat | db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e

General

Target

db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe
Size

43KB
MD5

71152f3b9a20b6bdf15451f7fefceeb5
SHA1

f1bfb4bbf23866b97cee0fb39895f365377003e9
SHA256

db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e
SHA512

1efcb54168dd7abeefd5fd74147d86d8131ccb75c70b4c24673af88df4781577d31278ea8148ad061fc1177e5f9f71bdbc31e5528b7b5067ced19467bce36fb7

Score

10^/10

njrat ???persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

???

C2

127.0.0.1:6626

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 3 IoCs

Processes:

Dllhost.exeServer.exeServer.exe

pid process

856 Dllhost.exe
4348 Server.exe
4376 Server.exe

pid	process
856	Dllhost.exe
4348	Server.exe
4376	Server.exe

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

Processes:

db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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
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

3368 schtasks.exe
Suspicious behavior: GetForegroundWindowSpam 3 IoCs

Processes:

db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exeDllhost.exeServer.exe

pid process

4160 db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe
856 Dllhost.exe
4348 Server.exe

pid	process
3368	schtasks.exe

pid	process
4160	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe
856	Dllhost.exe
4348	Server.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

Dllhost.exe

description	pid	process
Token: SeDebugPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe
Token: 33	856	Dllhost.exe
Token: SeIncBasePriorityPrivilege	856	Dllhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exeDllhost.exe

description	pid	process	target process
PID 4160 wrote to memory of 856	4160	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe	Dllhost.exe
PID 4160 wrote to memory of 856	4160	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe	Dllhost.exe
PID 4160 wrote to memory of 856	4160	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe	Dllhost.exe
PID 856 wrote to memory of 3368	856	Dllhost.exe	schtasks.exe
PID 856 wrote to memory of 3368	856	Dllhost.exe	schtasks.exe
PID 856 wrote to memory of 3368	856	Dllhost.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe
"C:\Users\Admin\AppData\Local\Temp\db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:4160

C:\Users\Admin\AppData\Roaming\Dllhost.exe
"C:\Users\Admin\AppData\Roaming\Dllhost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:856

C:\Windows\SysWOW64\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:3368

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
PID:4348

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:4376

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Server.exe.log
Filesize
408B

MD5
42157868488d3ef98c00e3fa12f064be

SHA1
aad391be9ac3f6ce1ced49583690486a5f4186fb

SHA256
b9520170e84597186ba5cc223b9c2773f70d0cda088950bae2182e3b2237995c

SHA512
8f4a4bd63ceefc34158ea23f3a73dcc2848eeacdba8355d1251a96b4e0c18e2f3b0c4939be359f874f81fe4ee63283b8be43a70fe2dbaa2e64784333d10a2471

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
43KB

MD5
71152f3b9a20b6bdf15451f7fefceeb5

SHA1
f1bfb4bbf23866b97cee0fb39895f365377003e9

SHA256
db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e

SHA512
1efcb54168dd7abeefd5fd74147d86d8131ccb75c70b4c24673af88df4781577d31278ea8148ad061fc1177e5f9f71bdbc31e5528b7b5067ced19467bce36fb7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
43KB

MD5
71152f3b9a20b6bdf15451f7fefceeb5

SHA1
f1bfb4bbf23866b97cee0fb39895f365377003e9

SHA256
db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e

SHA512
1efcb54168dd7abeefd5fd74147d86d8131ccb75c70b4c24673af88df4781577d31278ea8148ad061fc1177e5f9f71bdbc31e5528b7b5067ced19467bce36fb7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
43KB

MD5
71152f3b9a20b6bdf15451f7fefceeb5

SHA1
f1bfb4bbf23866b97cee0fb39895f365377003e9

SHA256
db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e

SHA512
1efcb54168dd7abeefd5fd74147d86d8131ccb75c70b4c24673af88df4781577d31278ea8148ad061fc1177e5f9f71bdbc31e5528b7b5067ced19467bce36fb7

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

MD5
71152f3b9a20b6bdf15451f7fefceeb5

SHA1
f1bfb4bbf23866b97cee0fb39895f365377003e9

SHA256
db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e

SHA512
1efcb54168dd7abeefd5fd74147d86d8131ccb75c70b4c24673af88df4781577d31278ea8148ad061fc1177e5f9f71bdbc31e5528b7b5067ced19467bce36fb7

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

MD5
71152f3b9a20b6bdf15451f7fefceeb5

SHA1
f1bfb4bbf23866b97cee0fb39895f365377003e9

SHA256
db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e

SHA512
1efcb54168dd7abeefd5fd74147d86d8131ccb75c70b4c24673af88df4781577d31278ea8148ad061fc1177e5f9f71bdbc31e5528b7b5067ced19467bce36fb7

Download Submit
memory/856-131-0x0000000000000000-mapping.dmp

Download
memory/856-134-0x00000000752A0000-0x0000000075851000-memory.dmp

Filesize
5.7MB

Download
memory/3368-135-0x0000000000000000-mapping.dmp

Download
memory/4160-130-0x00000000752A0000-0x0000000075851000-memory.dmp

Filesize
5.7MB

Download
memory/4348-138-0x00000000752A0000-0x0000000075851000-memory.dmp

Filesize
5.7MB

Download
memory/4376-141-0x00000000752A0000-0x0000000075851000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads