njrat | a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8

Analysis

max time kernel
174s
max time network
427s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 19:38

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General

Target

a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe
Size

29KB
MD5

3490a3125771a2ddd8d9d633be4201b0
SHA1

134db4d28672703ca6670b3f8d8823b1b1f877fe
SHA256

a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8
SHA512

96ecf261d86f97cc0b091cc01ff109ece03bbbbbf20cdf00fb50b6f1024ffc966602bf20b1ada0f802c616c0797276e5afbfe0e6a488391d787e10a0fa15f0d2
SSDEEP

384:CPqvANl7TxTD+VF2dbofPauxnaIuN15708COmqDk9jeHqGBsbh0w4wlAokw9Ohgd:5u75oa4fuTC8cqojeVBKh0p29SgRTn

Score

10^/10

njrat stiva trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Stiva

stivadns.zapto.org:1177

Mutex

c628feb012b1a51cfd51ff0ba11260eb

Attributes

reg_key
c628feb012b1a51cfd51ff0ba11260eb
splitter
|'|'|

Signatures

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

Processes:

Java.exe

pid process

2356 Java.exe

pid	process
2356	Java.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:

a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.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:

a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe

description	pid	process	target process
PID 1856 wrote to memory of 2356	1856	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1856 wrote to memory of 2356	1856	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1856 wrote to memory of 2356	1856	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe

C:\Users\Admin\AppData\Local\Temp\a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe
"C:\Users\Admin\AppData\Local\Temp\a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1856

C:\ProgramData\Java.exe
"C:\ProgramData\Java.exe"
2⤵
- Executes dropped EXE
PID:2356

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:\ProgramData\Java.exe
Filesize
29KB

MD5
3490a3125771a2ddd8d9d633be4201b0

SHA1
134db4d28672703ca6670b3f8d8823b1b1f877fe

SHA256
a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8

SHA512
96ecf261d86f97cc0b091cc01ff109ece03bbbbbf20cdf00fb50b6f1024ffc966602bf20b1ada0f802c616c0797276e5afbfe0e6a488391d787e10a0fa15f0d2

Download Submit
C:\ProgramData\Java.exe
Filesize
29KB

MD5
3490a3125771a2ddd8d9d633be4201b0

SHA1
134db4d28672703ca6670b3f8d8823b1b1f877fe

SHA256
a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8

SHA512
96ecf261d86f97cc0b091cc01ff109ece03bbbbbf20cdf00fb50b6f1024ffc966602bf20b1ada0f802c616c0797276e5afbfe0e6a488391d787e10a0fa15f0d2

Download Submit
memory/1856-132-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-133-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-139-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/2356-134-0x0000000000000000-mapping.dmp

Download
memory/2356-137-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/2356-138-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download