njrat | 4c9b1b4db3fd9b0cd9b7163cdbee3c321cd2046516f65443345d34eeaba05b05

General

Target

HEUR-Trojan.MSIL.Gorgon.gen-4c9b1b4db3fd9b0cd.exe
Size

275KB
MD5

23fa40a66b8c641f8324c2b659c341be
SHA1

8eeea57eb2af7bb571f023b29d59202e97eaab59
SHA256

4c9b1b4db3fd9b0cd9b7163cdbee3c321cd2046516f65443345d34eeaba05b05
SHA512

ad47eb6357936125ebb8d10a1dea5c42357178fc0e7243adf50a4a9677fb78ca49912fae43d0a0f86cdc0c1215a43dd60f194f7ebcd5cea9ad438d8f5f8eea58
SSDEEP

3072:UYH88y9uczJx44Dolo4fFSpTjP17qWyW3zbx2vyE7S1M2Q:Ply9uczJxRDolZgV1dnbkORQ

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

2.tcp.eu.ngrok.io:13002

Mutex

2806cdb1ef67986308064d5873a67ad7

Attributes

reg_key
2806cdb1ef67986308064d5873a67ad7
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

1660 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1512 netsh.exe

pid	process
1660	server.exe

pid	process
1512	netsh.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2806cdb1ef67986308064d5873a67ad7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\2806cdb1ef67986308064d5873a67ad7 = "\"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 19 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe
Token: 33	1660	server.exe
Token: SeIncBasePriorityPrivilege	1660	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

HEUR-Trojan.MSIL.Gorgon.gen-4c9b1b4db3fd9b0cd.exeserver.exe

description	pid	process	target process
PID 1764 wrote to memory of 1660	1764	HEUR-Trojan.MSIL.Gorgon.gen-4c9b1b4db3fd9b0cd.exe	server.exe
PID 1764 wrote to memory of 1660	1764	HEUR-Trojan.MSIL.Gorgon.gen-4c9b1b4db3fd9b0cd.exe	server.exe
PID 1764 wrote to memory of 1660	1764	HEUR-Trojan.MSIL.Gorgon.gen-4c9b1b4db3fd9b0cd.exe	server.exe
PID 1660 wrote to memory of 1512	1660	server.exe	netsh.exe
PID 1660 wrote to memory of 1512	1660	server.exe	netsh.exe
PID 1660 wrote to memory of 1512	1660	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.Gorgon.gen-4c9b1b4db3fd9b0cd.exe
"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.Gorgon.gen-4c9b1b4db3fd9b0cd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1764

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1660

C:\Windows\system32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1512

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
275KB

MD5
23fa40a66b8c641f8324c2b659c341be

SHA1
8eeea57eb2af7bb571f023b29d59202e97eaab59

SHA256
4c9b1b4db3fd9b0cd9b7163cdbee3c321cd2046516f65443345d34eeaba05b05

SHA512
ad47eb6357936125ebb8d10a1dea5c42357178fc0e7243adf50a4a9677fb78ca49912fae43d0a0f86cdc0c1215a43dd60f194f7ebcd5cea9ad438d8f5f8eea58

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
275KB

MD5
23fa40a66b8c641f8324c2b659c341be

SHA1
8eeea57eb2af7bb571f023b29d59202e97eaab59

SHA256
4c9b1b4db3fd9b0cd9b7163cdbee3c321cd2046516f65443345d34eeaba05b05

SHA512
ad47eb6357936125ebb8d10a1dea5c42357178fc0e7243adf50a4a9677fb78ca49912fae43d0a0f86cdc0c1215a43dd60f194f7ebcd5cea9ad438d8f5f8eea58

Download Submit
memory/1512-64-0x0000000000000000-mapping.dmp

Download
memory/1660-58-0x0000000000000000-mapping.dmp

Download
memory/1660-61-0x0000000000960000-0x00000000009A2000-memory.dmp

Filesize
264KB

Download
memory/1660-63-0x000000001B1A6000-0x000000001B1C5000-memory.dmp

Filesize
124KB

Download
memory/1660-66-0x000000001B1A6000-0x000000001B1C5000-memory.dmp

Filesize
124KB

Download
memory/1764-54-0x0000000000D80000-0x0000000000DC2000-memory.dmp

Filesize
264KB

Download
memory/1764-55-0x000007FEFC0D1000-0x000007FEFC0D3000-memory.dmp

Filesize
8KB

Download
memory/1764-56-0x0000000000990000-0x000000000099C000-memory.dmp

Filesize
48KB

Download
memory/1764-57-0x000000001AD86000-0x000000001ADA5000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads