njrat | db62cd044da6120e08c11b7cc41f9ac0fb160adedd1f7a3a6380713d3a305357

General

Target

tmp.exe
Size

23KB
MD5

4cc52b12b15e02c96fed275defa813af
SHA1

a35a727745e25e1b71119968d3f090dfc4c07c18
SHA256

db62cd044da6120e08c11b7cc41f9ac0fb160adedd1f7a3a6380713d3a305357
SHA512

addaa15db05d0eee7f43715406fc41ebd1dd0dc1b626d473c85c302ff541f7033dd77585912e1630e10474db212aa5d9122bb8527d9383437fba9d56e90c3676
SSDEEP

384:9oWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZug:i7O89p2rRpcnu4

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

20.7.14.99:5552

Mutex

9636f5e673cfb8069e1ef3d1f8bc784b

Attributes

reg_key
9636f5e673cfb8069e1ef3d1f8bc784b
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

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

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1512 netsh.exe

pid	process
892	server.exe

pid	process
1512	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\9636f5e673cfb8069e1ef3d1f8bc784b.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9636f5e673cfb8069e1ef3d1f8bc784b.exe	server.exe

Loads dropped DLL 1 IoCs

Processes:

tmp.exe

pid process

1972 tmp.exe

pid	process
1972	tmp.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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\9636f5e673cfb8069e1ef3d1f8bc784b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\9636f5e673cfb8069e1ef3d1f8bc784b = "\"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	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe
Token: 33	892	server.exe
Token: SeIncBasePriorityPrivilege	892	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

tmp.exeserver.exe

description	pid	process	target process
PID 1972 wrote to memory of 892	1972	tmp.exe	server.exe
PID 1972 wrote to memory of 892	1972	tmp.exe	server.exe
PID 1972 wrote to memory of 892	1972	tmp.exe	server.exe
PID 1972 wrote to memory of 892	1972	tmp.exe	server.exe
PID 892 wrote to memory of 1512	892	server.exe	netsh.exe
PID 892 wrote to memory of 1512	892	server.exe	netsh.exe
PID 892 wrote to memory of 1512	892	server.exe	netsh.exe
PID 892 wrote to memory of 1512	892	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1972

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:892

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: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

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Downloads

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

MD5
4cc52b12b15e02c96fed275defa813af

SHA1
a35a727745e25e1b71119968d3f090dfc4c07c18

SHA256
db62cd044da6120e08c11b7cc41f9ac0fb160adedd1f7a3a6380713d3a305357

SHA512
addaa15db05d0eee7f43715406fc41ebd1dd0dc1b626d473c85c302ff541f7033dd77585912e1630e10474db212aa5d9122bb8527d9383437fba9d56e90c3676

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

MD5
4cc52b12b15e02c96fed275defa813af

SHA1
a35a727745e25e1b71119968d3f090dfc4c07c18

SHA256
db62cd044da6120e08c11b7cc41f9ac0fb160adedd1f7a3a6380713d3a305357

SHA512
addaa15db05d0eee7f43715406fc41ebd1dd0dc1b626d473c85c302ff541f7033dd77585912e1630e10474db212aa5d9122bb8527d9383437fba9d56e90c3676

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

MD5
4cc52b12b15e02c96fed275defa813af

SHA1
a35a727745e25e1b71119968d3f090dfc4c07c18

SHA256
db62cd044da6120e08c11b7cc41f9ac0fb160adedd1f7a3a6380713d3a305357

SHA512
addaa15db05d0eee7f43715406fc41ebd1dd0dc1b626d473c85c302ff541f7033dd77585912e1630e10474db212aa5d9122bb8527d9383437fba9d56e90c3676

Download Submit
memory/892-57-0x0000000000000000-mapping.dmp

Download
memory/892-62-0x0000000074690000-0x0000000074C3B000-memory.dmp

Filesize
5.7MB

Download
memory/892-65-0x0000000074690000-0x0000000074C3B000-memory.dmp

Filesize
5.7MB

Download
memory/1512-63-0x0000000000000000-mapping.dmp

Download
memory/1972-54-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download
memory/1972-55-0x0000000074690000-0x0000000074C3B000-memory.dmp

Filesize
5.7MB

Download
memory/1972-61-0x0000000074690000-0x0000000074C3B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads