njrat | 0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74

General

Target

HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe
Size

23KB
MD5

3a698ce6d6a5431236be52b04b49a054
SHA1

cdd747af7b5e2e77a8a3e5c43147f7c4a4cf7179
SHA256

0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74
SHA512

8d0a2bd1b2f7b40d5b47be60fb014fd7cf9a1f6bf0e8dbcb970c61d8568365005d5ac1620c9035441d5c153a43eb0d5c69a128a5d4b918757fe89b6c080b4b7b
SSDEEP

384:BHsqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZzaqm:Bcf65K2Yf1jKRpcnub

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

109.0.221.45:7006

Mutex

4b7f5fbef052312fadb4d8fe15ed0ebe

Attributes

reg_key
4b7f5fbef052312fadb4d8fe15ed0ebe
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

1952 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1004 netsh.exe

pid	process
1952	server.exe

pid	process
1004	netsh.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\4b7f5fbef052312fadb4d8fe15ed0ebe.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4b7f5fbef052312fadb4d8fe15ed0ebe.exe	server.exe

Loads dropped DLL 1 IoCs

Processes:

HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe

pid process

1512 HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe

pid	process
1512	HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\4b7f5fbef052312fadb4d8fe15ed0ebe = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\4b7f5fbef052312fadb4d8fe15ed0ebe = "\"C:\\Users\\Admin\\AppData\\Roaming\\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 use of AdjustPrivilegeToken 17 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	1952	server.exe
Token: 33	1952	server.exe
Token: SeIncBasePriorityPrivilege	1952	server.exe
Token: 33	1952	server.exe
Token: SeIncBasePriorityPrivilege	1952	server.exe
Token: 33	1952	server.exe
Token: SeIncBasePriorityPrivilege	1952	server.exe
Token: 33	1952	server.exe
Token: SeIncBasePriorityPrivilege	1952	server.exe
Token: 33	1952	server.exe
Token: SeIncBasePriorityPrivilege	1952	server.exe
Token: 33	1952	server.exe
Token: SeIncBasePriorityPrivilege	1952	server.exe
Token: 33	1952	server.exe
Token: SeIncBasePriorityPrivilege	1952	server.exe
Token: 33	1952	server.exe
Token: SeIncBasePriorityPrivilege	1952	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exeserver.exe

description	pid	process	target process
PID 1512 wrote to memory of 1952	1512	HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe	server.exe
PID 1512 wrote to memory of 1952	1512	HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe	server.exe
PID 1512 wrote to memory of 1952	1512	HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe	server.exe
PID 1512 wrote to memory of 1952	1512	HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe	server.exe
PID 1952 wrote to memory of 1004	1952	server.exe	netsh.exe
PID 1952 wrote to memory of 1004	1952	server.exe	netsh.exe
PID 1952 wrote to memory of 1004	1952	server.exe	netsh.exe
PID 1952 wrote to memory of 1004	1952	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe
"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.Win32.Generic-0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1512

C:\Users\Admin\AppData\Roaming\server.exe
"C:\Users\Admin\AppData\Roaming\server.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1952

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1004

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\server.exe
Filesize
23KB

MD5
3a698ce6d6a5431236be52b04b49a054

SHA1
cdd747af7b5e2e77a8a3e5c43147f7c4a4cf7179

SHA256
0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74

SHA512
8d0a2bd1b2f7b40d5b47be60fb014fd7cf9a1f6bf0e8dbcb970c61d8568365005d5ac1620c9035441d5c153a43eb0d5c69a128a5d4b918757fe89b6c080b4b7b

Download Submit
C:\Users\Admin\AppData\Roaming\server.exe
Filesize
23KB

MD5
3a698ce6d6a5431236be52b04b49a054

SHA1
cdd747af7b5e2e77a8a3e5c43147f7c4a4cf7179

SHA256
0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74

SHA512
8d0a2bd1b2f7b40d5b47be60fb014fd7cf9a1f6bf0e8dbcb970c61d8568365005d5ac1620c9035441d5c153a43eb0d5c69a128a5d4b918757fe89b6c080b4b7b

Download Submit
\Users\Admin\AppData\Roaming\server.exe
Filesize
23KB

MD5
3a698ce6d6a5431236be52b04b49a054

SHA1
cdd747af7b5e2e77a8a3e5c43147f7c4a4cf7179

SHA256
0604c39eba575b6dde644df71e79c9f09bad8a4f3229a4d16f50ac5362387d74

SHA512
8d0a2bd1b2f7b40d5b47be60fb014fd7cf9a1f6bf0e8dbcb970c61d8568365005d5ac1620c9035441d5c153a43eb0d5c69a128a5d4b918757fe89b6c080b4b7b

Download Submit
memory/1004-63-0x0000000000000000-mapping.dmp

Download
memory/1512-54-0x00000000756A1000-0x00000000756A3000-memory.dmp

Filesize
8KB

Download
memory/1512-55-0x00000000748C0000-0x0000000074E6B000-memory.dmp

Filesize
5.7MB

Download
memory/1512-61-0x00000000748C0000-0x0000000074E6B000-memory.dmp

Filesize
5.7MB

Download
memory/1952-57-0x0000000000000000-mapping.dmp

Download
memory/1952-62-0x00000000748C0000-0x0000000074E6B000-memory.dmp

Filesize
5.7MB

Download
memory/1952-65-0x00000000748C0000-0x0000000074E6B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads