njrat | b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c

Analysis

max time kernel
309s
max time network
330s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2022 00:28

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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 trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

system

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

4636 systemini.exe

pid	process
4636	systemini.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:

b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.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 WriteProcessMemory 3 IoCs

Processes:

b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe

description	pid	process	target process
PID 744 wrote to memory of 4636	744	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe	systemini.exe
PID 744 wrote to memory of 4636	744	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe	systemini.exe
PID 744 wrote to memory of 4636	744	b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe	systemini.exe

C:\Users\Admin\AppData\Local\Temp\b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe
"C:\Users\Admin\AppData\Local\Temp\b806fb9e82114d10baa1a1447b071819ad66d6db039f80fe9a501e7fa9ce4f8c.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:744

C:\Users\Admin\AppData\Local\Temp\systemini.exe
"C:\Users\Admin\AppData\Local\Temp\systemini.exe"
2⤵
- Executes dropped EXE
PID:4636

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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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
memory/744-132-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/744-133-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/744-137-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/4636-134-0x0000000000000000-mapping.dmp

Download
memory/4636-138-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download