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

624 Dllhost.exe
1488 Server.exe
340 Server.exe

pid	process
624	Dllhost.exe
1488	Server.exe
340	Server.exe

Drops startup file 2 IoCs

Processes:

Dllhost.exe

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

Loads dropped DLL 1 IoCs

Processes:

db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe

pid process

1680 db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe

pid	process
1680	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\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

2024 schtasks.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Dllhost.exe

pid process

624 Dllhost.exe

pid	process
2024	schtasks.exe

pid	process
624	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes:

Dllhost.exe

description	pid	process
Token: SeDebugPrivilege	624	Dllhost.exe
Token: 33	624	Dllhost.exe
Token: SeIncBasePriorityPrivilege	624	Dllhost.exe
Token: 33	624	Dllhost.exe
Token: SeIncBasePriorityPrivilege	624	Dllhost.exe
Token: 33	624	Dllhost.exe
Token: SeIncBasePriorityPrivilege	624	Dllhost.exe
Token: 33	624	Dllhost.exe
Token: SeIncBasePriorityPrivilege	624	Dllhost.exe
Token: 33	624	Dllhost.exe
Token: SeIncBasePriorityPrivilege	624	Dllhost.exe
Token: 33	624	Dllhost.exe
Token: SeIncBasePriorityPrivilege	624	Dllhost.exe
Token: 33	624	Dllhost.exe
Token: SeIncBasePriorityPrivilege	624	Dllhost.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exeDllhost.exetaskeng.exe

description	pid	process	target process
PID 1680 wrote to memory of 624	1680	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe	Dllhost.exe
PID 1680 wrote to memory of 624	1680	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe	Dllhost.exe
PID 1680 wrote to memory of 624	1680	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe	Dllhost.exe
PID 1680 wrote to memory of 624	1680	db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe	Dllhost.exe
PID 624 wrote to memory of 2024	624	Dllhost.exe	schtasks.exe
PID 624 wrote to memory of 2024	624	Dllhost.exe	schtasks.exe
PID 624 wrote to memory of 2024	624	Dllhost.exe	schtasks.exe
PID 624 wrote to memory of 2024	624	Dllhost.exe	schtasks.exe
PID 1120 wrote to memory of 1488	1120	taskeng.exe	Server.exe
PID 1120 wrote to memory of 1488	1120	taskeng.exe	Server.exe
PID 1120 wrote to memory of 1488	1120	taskeng.exe	Server.exe
PID 1120 wrote to memory of 1488	1120	taskeng.exe	Server.exe
PID 1120 wrote to memory of 340	1120	taskeng.exe	Server.exe
PID 1120 wrote to memory of 340	1120	taskeng.exe	Server.exe
PID 1120 wrote to memory of 340	1120	taskeng.exe	Server.exe
PID 1120 wrote to memory of 340	1120	taskeng.exe	Server.exe

C:\Users\Admin\AppData\Local\Temp\db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe
"C:\Users\Admin\AppData\Local\Temp\db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1680

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:624

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:2024

C:\Windows\system32\taskeng.exe
taskeng.exe {71407404-F90B-44C5-BDD7-FFCA38B573B9} S-1-5-21-2277218442-1199762539-2004043321-1000:AUVQQRRF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1120

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
2⤵
- Executes dropped EXE
PID:1488

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
2⤵
- Executes dropped EXE
PID:340

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
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
\Users\Admin\AppData\Roaming\Dllhost.exe
Filesize
43KB

MD5
71152f3b9a20b6bdf15451f7fefceeb5

SHA1
f1bfb4bbf23866b97cee0fb39895f365377003e9

SHA256
db7e41ad958ee52cb6257330e55b25f8e9314d89719c78b524e8b76025d2252e

SHA512
1efcb54168dd7abeefd5fd74147d86d8131ccb75c70b4c24673af88df4781577d31278ea8148ad061fc1177e5f9f71bdbc31e5528b7b5067ced19467bce36fb7

Download Submit
memory/340-71-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/340-68-0x0000000000000000-mapping.dmp

Download
memory/624-61-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/624-57-0x0000000000000000-mapping.dmp

Download
memory/1488-64-0x0000000000000000-mapping.dmp

Download
memory/1488-67-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/1680-54-0x0000000075761000-0x0000000075763000-memory.dmp

Filesize
8KB

Download
memory/1680-55-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2024-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads