njrat | f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b

General

Target

f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe
Size

43KB
MD5

a2d178df7c63562f930f089abbd6c79c
SHA1

f320ed2f191f281f0727fbfb128e2c562884d51c
SHA256

f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b
SHA512

8ab6efb73a597ae8ab0659eb8dbaea2336104b9ccbf35ccb623abdb98c8f6abcf627b36ca9306fec049f3300f10fe8ebb68b3bc3b763785dacd4414bdbe5b64d

Score

10^/10

njrat hacker persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

hacker

C2

192.168.0.108:5522

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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

Processes:

system32t.exe

pid process

1208 system32t.exe

pid	process
1208	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 update.exe	system32t.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	system32t.exe

Loads dropped DLL 1 IoCs

Processes:

f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe

pid process

1524 f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe

pid	process
1524	f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.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 Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\system32t.exe\" .."	system32t.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"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

1208 system32t.exe

pid	process
1208	system32t.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

system32t.exe

description	pid	process
Token: SeDebugPrivilege	1208	system32t.exe
Token: 33	1208	system32t.exe
Token: SeIncBasePriorityPrivilege	1208	system32t.exe
Token: 33	1208	system32t.exe
Token: SeIncBasePriorityPrivilege	1208	system32t.exe
Token: 33	1208	system32t.exe
Token: SeIncBasePriorityPrivilege	1208	system32t.exe
Token: 33	1208	system32t.exe
Token: SeIncBasePriorityPrivilege	1208	system32t.exe
Token: 33	1208	system32t.exe
Token: SeIncBasePriorityPrivilege	1208	system32t.exe
Token: 33	1208	system32t.exe
Token: SeIncBasePriorityPrivilege	1208	system32t.exe
Token: 33	1208	system32t.exe
Token: SeIncBasePriorityPrivilege	1208	system32t.exe
Token: 33	1208	system32t.exe
Token: SeIncBasePriorityPrivilege	1208	system32t.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe

description	pid	process	target process
PID 1524 wrote to memory of 1208	1524	f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe	system32t.exe
PID 1524 wrote to memory of 1208	1524	f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe	system32t.exe
PID 1524 wrote to memory of 1208	1524	f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe	system32t.exe
PID 1524 wrote to memory of 1208	1524	f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe	system32t.exe

C:\Users\Admin\AppData\Local\Temp\f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe
"C:\Users\Admin\AppData\Local\Temp\f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1524

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:1208

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

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Downloads

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

MD5
a2d178df7c63562f930f089abbd6c79c

SHA1
f320ed2f191f281f0727fbfb128e2c562884d51c

SHA256
f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b

SHA512
8ab6efb73a597ae8ab0659eb8dbaea2336104b9ccbf35ccb623abdb98c8f6abcf627b36ca9306fec049f3300f10fe8ebb68b3bc3b763785dacd4414bdbe5b64d

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

MD5
a2d178df7c63562f930f089abbd6c79c

SHA1
f320ed2f191f281f0727fbfb128e2c562884d51c

SHA256
f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b

SHA512
8ab6efb73a597ae8ab0659eb8dbaea2336104b9ccbf35ccb623abdb98c8f6abcf627b36ca9306fec049f3300f10fe8ebb68b3bc3b763785dacd4414bdbe5b64d

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

MD5
a2d178df7c63562f930f089abbd6c79c

SHA1
f320ed2f191f281f0727fbfb128e2c562884d51c

SHA256
f86acc6df5e420b789a906972716d90f1dde00931fb08e0d6b4eed2e9278df5b

SHA512
8ab6efb73a597ae8ab0659eb8dbaea2336104b9ccbf35ccb623abdb98c8f6abcf627b36ca9306fec049f3300f10fe8ebb68b3bc3b763785dacd4414bdbe5b64d

Download Submit
memory/1208-57-0x0000000000000000-mapping.dmp

Download
memory/1208-61-0x0000000075000000-0x00000000755AB000-memory.dmp

Filesize
5.7MB

Download
memory/1524-54-0x0000000076851000-0x0000000076853000-memory.dmp

Filesize
8KB

Download
memory/1524-55-0x0000000075000000-0x00000000755AB000-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