njrat | 5c4644f3f478085f4731a7cb10da859599837a8f5315be6d9e549029bc5c5892

General

Target

a31e6ca5620db4da55f0ad19e6ce16ef.exe
Size

37KB
MD5

a31e6ca5620db4da55f0ad19e6ce16ef
SHA1

76977e85c771c15beb0e68054d372528013544fd
SHA256

5c4644f3f478085f4731a7cb10da859599837a8f5315be6d9e549029bc5c5892
SHA512

7d767df06e4df25af4cdee1526d8bc5e158748a7bd9ca56e6af571f06e1508e616b274f996a23e242f8ec6c42dab06663e5d1a341596d5fd84804d526dc6de08

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

4.tcp.ngrok.io:12732

Mutex

9e02680d81daa6109823601d69f471c3

Attributes

reg_key
9e02680d81daa6109823601d69f471c3
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

1484 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1484	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\9e02680d81daa6109823601d69f471c3.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9e02680d81daa6109823601d69f471c3.exe	server.exe

Loads dropped DLL 1 IoCs

Processes:

a31e6ca5620db4da55f0ad19e6ce16ef.exe

pid process

2040 a31e6ca5620db4da55f0ad19e6ce16ef.exe

pid	process
2040	a31e6ca5620db4da55f0ad19e6ce16ef.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-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run\9e02680d81daa6109823601d69f471c3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\9e02680d81daa6109823601d69f471c3 = "\"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	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe
Token: 33	1484	server.exe
Token: SeIncBasePriorityPrivilege	1484	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a31e6ca5620db4da55f0ad19e6ce16ef.exeserver.exe

description	pid	process	target process
PID 2040 wrote to memory of 1484	2040	a31e6ca5620db4da55f0ad19e6ce16ef.exe	server.exe
PID 2040 wrote to memory of 1484	2040	a31e6ca5620db4da55f0ad19e6ce16ef.exe	server.exe
PID 2040 wrote to memory of 1484	2040	a31e6ca5620db4da55f0ad19e6ce16ef.exe	server.exe
PID 2040 wrote to memory of 1484	2040	a31e6ca5620db4da55f0ad19e6ce16ef.exe	server.exe
PID 1484 wrote to memory of 924	1484	server.exe	netsh.exe
PID 1484 wrote to memory of 924	1484	server.exe	netsh.exe
PID 1484 wrote to memory of 924	1484	server.exe	netsh.exe
PID 1484 wrote to memory of 924	1484	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a31e6ca5620db4da55f0ad19e6ce16ef.exe
"C:\Users\Admin\AppData\Local\Temp\a31e6ca5620db4da55f0ad19e6ce16ef.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2040

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:1484

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
PID:924

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
a31e6ca5620db4da55f0ad19e6ce16ef

SHA1
76977e85c771c15beb0e68054d372528013544fd

SHA256
5c4644f3f478085f4731a7cb10da859599837a8f5315be6d9e549029bc5c5892

SHA512
7d767df06e4df25af4cdee1526d8bc5e158748a7bd9ca56e6af571f06e1508e616b274f996a23e242f8ec6c42dab06663e5d1a341596d5fd84804d526dc6de08

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
a31e6ca5620db4da55f0ad19e6ce16ef

SHA1
76977e85c771c15beb0e68054d372528013544fd

SHA256
5c4644f3f478085f4731a7cb10da859599837a8f5315be6d9e549029bc5c5892

SHA512
7d767df06e4df25af4cdee1526d8bc5e158748a7bd9ca56e6af571f06e1508e616b274f996a23e242f8ec6c42dab06663e5d1a341596d5fd84804d526dc6de08

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe
MD5
a31e6ca5620db4da55f0ad19e6ce16ef

SHA1
76977e85c771c15beb0e68054d372528013544fd

SHA256
5c4644f3f478085f4731a7cb10da859599837a8f5315be6d9e549029bc5c5892

SHA512
7d767df06e4df25af4cdee1526d8bc5e158748a7bd9ca56e6af571f06e1508e616b274f996a23e242f8ec6c42dab06663e5d1a341596d5fd84804d526dc6de08

Download Submit
memory/924-63-0x0000000000000000-mapping.dmp

Download
memory/1484-58-0x0000000000000000-mapping.dmp

Download
memory/1484-62-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2040-55-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

Filesize
4KB

Download
memory/2040-56-0x0000000076761000-0x0000000076763000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads