njrat | b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c

General

Target

b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe
Size

23KB
MD5

b4fe61383938df9253137268d7f43cbf
SHA1

0b67e79550db6ac17da2cc5ac803cafc6ac43b82
SHA256

b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c
SHA512

c9731e9a9aa17cb81f0a92906845033acf55710deb4ac4d86abef369f8aa55650253e6ce1635c08560f44bea43dc05a51bababf5dc44ec05251172f89c9ee802
SSDEEP

384:n+4Q+SAN7uprgvM5OSUswZXg6ngbm4hfpFmRvR6JZlbw8hqIusZzZmn:n8OaxVUVRpcnuf

Score

10^/10

njrat system evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

system

C2

mstafa-king1.ddns.net:1177

Mutex

fbcdb3cbc5958cd8f7e96a3b01acbd45

Attributes

reg_key
fbcdb3cbc5958cd8f7e96a3b01acbd45
splitter
|'|'|

Signatures

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

Processes:

systemini.exe

pid process

1680 systemini.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

332 netsh.exe
Loads dropped DLL 1 IoCs

Processes:

b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe

pid process

1204 b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe

pid	process
1680	systemini.exe

pid	process
332	netsh.exe

pid	process
1204	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

systemini.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbcdb3cbc5958cd8f7e96a3b01acbd45 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\systemini.exe\" .."	systemini.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fbcdb3cbc5958cd8f7e96a3b01acbd45 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\systemini.exe\" .."	systemini.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:

systemini.exe

description	pid	process
Token: SeDebugPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe
Token: 33	1680	systemini.exe
Token: SeIncBasePriorityPrivilege	1680	systemini.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exesystemini.exe

description	pid	process	target process
PID 1204 wrote to memory of 1680	1204	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe	systemini.exe
PID 1204 wrote to memory of 1680	1204	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe	systemini.exe
PID 1204 wrote to memory of 1680	1204	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe	systemini.exe
PID 1204 wrote to memory of 1680	1204	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe	systemini.exe
PID 1680 wrote to memory of 332	1680	systemini.exe	netsh.exe
PID 1680 wrote to memory of 332	1680	systemini.exe	netsh.exe
PID 1680 wrote to memory of 332	1680	systemini.exe	netsh.exe
PID 1680 wrote to memory of 332	1680	systemini.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe
"C:\Users\Admin\AppData\Local\Temp\b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1204

C:\Users\Admin\AppData\Local\Temp\systemini.exe
"C:\Users\Admin\AppData\Local\Temp\systemini.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\systemini.exe" "systemini.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:332

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\systemini.exe
Filesize
23KB

MD5
b4fe61383938df9253137268d7f43cbf

SHA1
0b67e79550db6ac17da2cc5ac803cafc6ac43b82

SHA256
b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c

SHA512
c9731e9a9aa17cb81f0a92906845033acf55710deb4ac4d86abef369f8aa55650253e6ce1635c08560f44bea43dc05a51bababf5dc44ec05251172f89c9ee802

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

MD5
b4fe61383938df9253137268d7f43cbf

SHA1
0b67e79550db6ac17da2cc5ac803cafc6ac43b82

SHA256
b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c

SHA512
c9731e9a9aa17cb81f0a92906845033acf55710deb4ac4d86abef369f8aa55650253e6ce1635c08560f44bea43dc05a51bababf5dc44ec05251172f89c9ee802

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

MD5
b4fe61383938df9253137268d7f43cbf

SHA1
0b67e79550db6ac17da2cc5ac803cafc6ac43b82

SHA256
b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c

SHA512
c9731e9a9aa17cb81f0a92906845033acf55710deb4ac4d86abef369f8aa55650253e6ce1635c08560f44bea43dc05a51bababf5dc44ec05251172f89c9ee802

Download Submit
memory/332-63-0x0000000000000000-mapping.dmp

Download
memory/1204-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

Filesize
8KB

Download
memory/1204-55-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/1204-61-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/1680-57-0x0000000000000000-mapping.dmp

Download
memory/1680-62-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/1680-65-0x0000000074030000-0x00000000745DB000-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