njrat | eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659

General

Target

eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe
Size

1.3MB
MD5

65e4e35648c5e3420042efa9e030baca
SHA1

c1f807321a76dbe893d9f99c20e7934b19208490
SHA256

eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659
SHA512

fdfdfc8540af42861f301c1082bc168de264d74edb2897e2771ba011a0fd2b58af1358ece312670dcc1a00dbc78facb9056086225b8b07d0e6be01967b75e42d
SSDEEP

24576:n82orkRP/V1ep7sef8xffmTFOvr6Xiwf/PR8wsF42nSYLS/8WLl9:82o6/q1sef8xfWFOveLf/aFlSYO/3

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

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

Processes:

System.exe

pid process

1404 System.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4792 netsh.exe

pid	process
1404	System.exe

pid	process
4792	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe

Drops startup file 2 IoCs

Processes:

System.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b95c8175db0a4f1cc45b97312326391.exe	System.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b95c8175db0a4f1cc45b97312326391.exe	System.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

System.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8b95c8175db0a4f1cc45b97312326391 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .."	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8b95c8175db0a4f1cc45b97312326391 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .."	System.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 38 IoCs

Processes:

eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exeSystem.exe

description	pid	process
Token: SeDebugPrivilege	4584	eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe
Token: 33	4584	eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe
Token: SeIncBasePriorityPrivilege	4584	eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe
Token: SeDebugPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe
Token: 33	1404	System.exe
Token: SeIncBasePriorityPrivilege	1404	System.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exeSystem.exe

description	pid	process	target process
PID 4584 wrote to memory of 1404	4584	eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe	System.exe
PID 4584 wrote to memory of 1404	4584	eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe	System.exe
PID 1404 wrote to memory of 4792	1404	System.exe	netsh.exe
PID 1404 wrote to memory of 4792	1404	System.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe
"C:\Users\Admin\AppData\Local\Temp\eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4584

C:\Users\Admin\AppData\Local\Temp\System.exe
"C:\Users\Admin\AppData\Local\Temp\System.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1404

C:\Windows\SYSTEM32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4792

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\System.exe
Filesize
1.3MB

MD5
65e4e35648c5e3420042efa9e030baca

SHA1
c1f807321a76dbe893d9f99c20e7934b19208490

SHA256
eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659

SHA512
fdfdfc8540af42861f301c1082bc168de264d74edb2897e2771ba011a0fd2b58af1358ece312670dcc1a00dbc78facb9056086225b8b07d0e6be01967b75e42d

Download Submit
C:\Users\Admin\AppData\Local\Temp\System.exe
Filesize
1.3MB

MD5
65e4e35648c5e3420042efa9e030baca

SHA1
c1f807321a76dbe893d9f99c20e7934b19208490

SHA256
eb09b1428d18d3c19dfe2cd67a39aef3b56f9fdb26c103c1ac324cf6c32a5659

SHA512
fdfdfc8540af42861f301c1082bc168de264d74edb2897e2771ba011a0fd2b58af1358ece312670dcc1a00dbc78facb9056086225b8b07d0e6be01967b75e42d

Download Submit
memory/1404-134-0x0000000000000000-mapping.dmp

Download
memory/1404-139-0x00007FFDE5D10000-0x00007FFDE67D1000-memory.dmp

Filesize
10.8MB

Download
memory/1404-141-0x00007FFDE5D10000-0x00007FFDE67D1000-memory.dmp

Filesize
10.8MB

Download
memory/4584-132-0x0000000000630000-0x0000000000776000-memory.dmp

Filesize
1.3MB

Download
memory/4584-133-0x00007FFDE5D10000-0x00007FFDE67D1000-memory.dmp

Filesize
10.8MB

Download
memory/4584-135-0x00007FFDE5D10000-0x00007FFDE67D1000-memory.dmp

Filesize
10.8MB

Download
memory/4584-138-0x00007FFDE5D10000-0x00007FFDE67D1000-memory.dmp

Filesize
10.8MB

Download
memory/4792-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads