njrat | 1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202

General

Target

1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe
Size

132KB
MD5

7a5141d5681b79d64e8b0c7a19785881
SHA1

c85ee9fd78fce19b5418bd1a65b5697ccf0d0217
SHA256

1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202
SHA512

2ae457093a18d3427804f36b21377e5f2fc5529a4e00e74b97ef106fae4783247c7b97b02808b089baeb5bda6252fca4cdf72ef66141f6269ceb97b1cbf6a321

Score

10^/10

njrat public evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Public

C2

ddns81.airdns.org:18681

Mutex

a319f91b31a91d1c47b040e22bd78fcd

Attributes

reg_key
a319f91b31a91d1c47b040e22bd78fcd
splitter
|'|'|

Signatures

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

Processes:

NJRAT.exe

pid process

828 NJRAT.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1120 netsh.exe

pid	process
828	NJRAT.exe

pid	process
1120	netsh.exe

Drops startup file 2 IoCs

Processes:

NJRAT.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a319f91b31a91d1c47b040e22bd78fcd.exe	NJRAT.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a319f91b31a91d1c47b040e22bd78fcd.exe	NJRAT.exe

Loads dropped DLL 1 IoCs

Processes:

1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe

pid process

1516 1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe

pid	process
1516	1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

NJRAT.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a319f91b31a91d1c47b040e22bd78fcd = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NJRAT.exe\" .."	NJRAT.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\a319f91b31a91d1c47b040e22bd78fcd = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NJRAT.exe\" .."	NJRAT.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:

NJRAT.exe

description	pid	process
Token: SeDebugPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe
Token: 33	828	NJRAT.exe
Token: SeIncBasePriorityPrivilege	828	NJRAT.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exeNJRAT.exe

description	pid	process	target process
PID 1516 wrote to memory of 828	1516	1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe	NJRAT.exe
PID 1516 wrote to memory of 828	1516	1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe	NJRAT.exe
PID 1516 wrote to memory of 828	1516	1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe	NJRAT.exe
PID 1516 wrote to memory of 828	1516	1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe	NJRAT.exe
PID 828 wrote to memory of 1120	828	NJRAT.exe	netsh.exe
PID 828 wrote to memory of 1120	828	NJRAT.exe	netsh.exe
PID 828 wrote to memory of 1120	828	NJRAT.exe	netsh.exe
PID 828 wrote to memory of 1120	828	NJRAT.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe
"C:\Users\Admin\AppData\Local\Temp\1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1516

C:\Users\Admin\AppData\Local\Temp\NJRAT.exe
"C:\Users\Admin\AppData\Local\Temp\NJRAT.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:828

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\NJRAT.exe" "NJRAT.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1120

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\NJRAT.exe
Filesize
132KB

MD5
7a5141d5681b79d64e8b0c7a19785881

SHA1
c85ee9fd78fce19b5418bd1a65b5697ccf0d0217

SHA256
1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202

SHA512
2ae457093a18d3427804f36b21377e5f2fc5529a4e00e74b97ef106fae4783247c7b97b02808b089baeb5bda6252fca4cdf72ef66141f6269ceb97b1cbf6a321

Download Submit
C:\Users\Admin\AppData\Local\Temp\NJRAT.exe
Filesize
132KB

MD5
7a5141d5681b79d64e8b0c7a19785881

SHA1
c85ee9fd78fce19b5418bd1a65b5697ccf0d0217

SHA256
1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202

SHA512
2ae457093a18d3427804f36b21377e5f2fc5529a4e00e74b97ef106fae4783247c7b97b02808b089baeb5bda6252fca4cdf72ef66141f6269ceb97b1cbf6a321

Download Submit
\Users\Admin\AppData\Local\Temp\NJRAT.exe
Filesize
132KB

MD5
7a5141d5681b79d64e8b0c7a19785881

SHA1
c85ee9fd78fce19b5418bd1a65b5697ccf0d0217

SHA256
1c77c5ee1ca58fcc263739ebb1912fd5ef3f234960123132695646f793e9c202

SHA512
2ae457093a18d3427804f36b21377e5f2fc5529a4e00e74b97ef106fae4783247c7b97b02808b089baeb5bda6252fca4cdf72ef66141f6269ceb97b1cbf6a321

Download Submit
memory/828-57-0x0000000000000000-mapping.dmp

Download
memory/828-61-0x0000000074230000-0x00000000747DB000-memory.dmp

Filesize
5.7MB

Download
memory/828-65-0x0000000074230000-0x00000000747DB000-memory.dmp

Filesize
5.7MB

Download
memory/1120-63-0x0000000000000000-mapping.dmp

Download
memory/1516-54-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1516-55-0x0000000074230000-0x00000000747DB000-memory.dmp

Filesize
5.7MB

Download
memory/1516-62-0x0000000074230000-0x00000000747DB000-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