njrat | e0f6b466d18506eb16846285e03c050fe0f72dfcaaf55809c717ebc0c38de4f3

General

Target

4ff6f79a49a97dc667f24ba8cda3a576.exe
Size

43KB
MD5

4ff6f79a49a97dc667f24ba8cda3a576
SHA1

58b180568f77a147d272b46fa68789624b1cdd23
SHA256

e0f6b466d18506eb16846285e03c050fe0f72dfcaaf55809c717ebc0c38de4f3
SHA512

a52d861995e405f5ea4a3727a74d39c35ec92cd0659e1ea0af95267d2bb2db8519d394a240ec9abfa5ade1912dc4393d8828916a636c514202b2404a3e827a29
SSDEEP

384:YZyd4g98NaIyrRBb3yw+IEJiE7azsIij+ZsNO3PlpJKkkjh/TzF7pWnd/greT0pO:u8ywFrjb3ynRwuXQ/oo/+L

Score

10^/10

njrat hacked persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

4.tcp.eu.ngrok.io:18018

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:

Server.exe

pid process

1720 Server.exe

pid	process
1720	Server.exe

Drops startup file 2 IoCs

Processes:

Server.exe

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

Loads dropped DLL 1 IoCs

Processes:

4ff6f79a49a97dc667f24ba8cda3a576.exe

pid process

1552 4ff6f79a49a97dc667f24ba8cda3a576.exe

pid	process
1552	4ff6f79a49a97dc667f24ba8cda3a576.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.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:

Server.exe

pid process

1720 Server.exe

pid	process
1720	Server.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

Server.exe

description	pid	process
Token: SeDebugPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe
Token: 33	1720	Server.exe
Token: SeIncBasePriorityPrivilege	1720	Server.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4ff6f79a49a97dc667f24ba8cda3a576.exe

description	pid	process	target process
PID 1552 wrote to memory of 1720	1552	4ff6f79a49a97dc667f24ba8cda3a576.exe	Server.exe
PID 1552 wrote to memory of 1720	1552	4ff6f79a49a97dc667f24ba8cda3a576.exe	Server.exe
PID 1552 wrote to memory of 1720	1552	4ff6f79a49a97dc667f24ba8cda3a576.exe	Server.exe
PID 1552 wrote to memory of 1720	1552	4ff6f79a49a97dc667f24ba8cda3a576.exe	Server.exe

C:\Users\Admin\AppData\Local\Temp\4ff6f79a49a97dc667f24ba8cda3a576.exe
"C:\Users\Admin\AppData\Local\Temp\4ff6f79a49a97dc667f24ba8cda3a576.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1552

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1720

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

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Downloads

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

MD5
4ff6f79a49a97dc667f24ba8cda3a576

SHA1
58b180568f77a147d272b46fa68789624b1cdd23

SHA256
e0f6b466d18506eb16846285e03c050fe0f72dfcaaf55809c717ebc0c38de4f3

SHA512
a52d861995e405f5ea4a3727a74d39c35ec92cd0659e1ea0af95267d2bb2db8519d394a240ec9abfa5ade1912dc4393d8828916a636c514202b2404a3e827a29

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

MD5
4ff6f79a49a97dc667f24ba8cda3a576

SHA1
58b180568f77a147d272b46fa68789624b1cdd23

SHA256
e0f6b466d18506eb16846285e03c050fe0f72dfcaaf55809c717ebc0c38de4f3

SHA512
a52d861995e405f5ea4a3727a74d39c35ec92cd0659e1ea0af95267d2bb2db8519d394a240ec9abfa5ade1912dc4393d8828916a636c514202b2404a3e827a29

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

MD5
4ff6f79a49a97dc667f24ba8cda3a576

SHA1
58b180568f77a147d272b46fa68789624b1cdd23

SHA256
e0f6b466d18506eb16846285e03c050fe0f72dfcaaf55809c717ebc0c38de4f3

SHA512
a52d861995e405f5ea4a3727a74d39c35ec92cd0659e1ea0af95267d2bb2db8519d394a240ec9abfa5ade1912dc4393d8828916a636c514202b2404a3e827a29

Download Submit
memory/1552-54-0x0000000000EB0000-0x0000000000EC2000-memory.dmp

Filesize
72KB

Download
memory/1552-55-0x0000000075681000-0x0000000075683000-memory.dmp

Filesize
8KB

Download
memory/1720-57-0x0000000000000000-mapping.dmp

Download
memory/1720-60-0x0000000000280000-0x0000000000292000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads