njrat | 141ebbc7f1ba7e845bffec372dd0fd6deb19827ab5f165b80800ba5d13db3599

General

Target

28412b0f3a3010be0e140bcd1843ae8a.exe
Size

23KB
MD5

28412b0f3a3010be0e140bcd1843ae8a
SHA1

713ba709aa3639683f3b694e5f39cc70ae64bfc8
SHA256

141ebbc7f1ba7e845bffec372dd0fd6deb19827ab5f165b80800ba5d13db3599
SHA512

f8630601534848f3b2208773550d2575566441242b310ba314ad4403e4cdb43a6e6b5dc89ee02d896569a6a7221f7c71b6bd2ab5f931e8d3fc6d63cdfee78744

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

138.199.47.194:8080

Mutex

e175a5480e706552178dc58079e250f8

Attributes

reg_key
e175a5480e706552178dc58079e250f8
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

2984 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4720 netsh.exe

pid	process
2984	server.exe

pid	process
4720	netsh.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:

28412b0f3a3010be0e140bcd1843ae8a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	28412b0f3a3010be0e140bcd1843ae8a.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\e175a5480e706552178dc58079e250f8.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e175a5480e706552178dc58079e250f8.exe	server.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-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e175a5480e706552178dc58079e250f8 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e175a5480e706552178dc58079e250f8 = "\"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 use of AdjustPrivilegeToken 31 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe
Token: 33	2984	server.exe
Token: SeIncBasePriorityPrivilege	2984	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

28412b0f3a3010be0e140bcd1843ae8a.exeserver.exe

description	pid	process	target process
PID 648 wrote to memory of 2984	648	28412b0f3a3010be0e140bcd1843ae8a.exe	server.exe
PID 648 wrote to memory of 2984	648	28412b0f3a3010be0e140bcd1843ae8a.exe	server.exe
PID 648 wrote to memory of 2984	648	28412b0f3a3010be0e140bcd1843ae8a.exe	server.exe
PID 2984 wrote to memory of 4720	2984	server.exe	netsh.exe
PID 2984 wrote to memory of 4720	2984	server.exe	netsh.exe
PID 2984 wrote to memory of 4720	2984	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\28412b0f3a3010be0e140bcd1843ae8a.exe
"C:\Users\Admin\AppData\Local\Temp\28412b0f3a3010be0e140bcd1843ae8a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:648

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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2984

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4720

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

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\Temp\server.exe
Filesize
23KB

MD5
28412b0f3a3010be0e140bcd1843ae8a

SHA1
713ba709aa3639683f3b694e5f39cc70ae64bfc8

SHA256
141ebbc7f1ba7e845bffec372dd0fd6deb19827ab5f165b80800ba5d13db3599

SHA512
f8630601534848f3b2208773550d2575566441242b310ba314ad4403e4cdb43a6e6b5dc89ee02d896569a6a7221f7c71b6bd2ab5f931e8d3fc6d63cdfee78744

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

MD5
28412b0f3a3010be0e140bcd1843ae8a

SHA1
713ba709aa3639683f3b694e5f39cc70ae64bfc8

SHA256
141ebbc7f1ba7e845bffec372dd0fd6deb19827ab5f165b80800ba5d13db3599

SHA512
f8630601534848f3b2208773550d2575566441242b310ba314ad4403e4cdb43a6e6b5dc89ee02d896569a6a7221f7c71b6bd2ab5f931e8d3fc6d63cdfee78744

Download Submit
memory/648-130-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/648-134-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/2984-131-0x0000000000000000-mapping.dmp

Download
memory/2984-135-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/2984-137-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/4720-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads