njrat | 556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11

Analysis

max time kernel
210s
max time network
236s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 17:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.exe
Size

41KB
MD5

ac4cefd985abf452eb08bdfb8a2f77c7
SHA1

fe77f66e7a2202e586bbfc45153f9c54c4d15a4b
SHA256

556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11
SHA512

e706a6ab561aeb18f37e37a56a761249d3a0a3709e77077d8f2aee6a309f0d5e9a6c33ef92e96d97101467b90ee3177b0f4b7c8a93d618cd4586bde3f73819cc
SSDEEP

768:nZq4YO4rJjDcmhQ0L1bbC2VLL60Mjtur:nINrJUmhHbC+SM

Score

10^/10

njrat trojan

Malware Config

Signatures

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

Processes:

csrss.exe

pid process

2568 csrss.exe

pid	process
2568	csrss.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:

556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.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:

556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.exe

description	pid	process	target process
PID 428 wrote to memory of 2568	428	556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.exe	csrss.exe
PID 428 wrote to memory of 2568	428	556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.exe	csrss.exe
PID 428 wrote to memory of 2568	428	556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.exe	csrss.exe

C:\Users\Admin\AppData\Local\Temp\556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.exe
"C:\Users\Admin\AppData\Local\Temp\556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:428

C:\Users\Admin\AppData\Roaming\csrss.exe
"C:\Users\Admin\AppData\Roaming\csrss.exe"
2⤵
- Executes dropped EXE
PID:2568

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\csrss.exe
Filesize
41KB

MD5
ac4cefd985abf452eb08bdfb8a2f77c7

SHA1
fe77f66e7a2202e586bbfc45153f9c54c4d15a4b

SHA256
556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11

SHA512
e706a6ab561aeb18f37e37a56a761249d3a0a3709e77077d8f2aee6a309f0d5e9a6c33ef92e96d97101467b90ee3177b0f4b7c8a93d618cd4586bde3f73819cc

Download Submit
C:\Users\Admin\AppData\Roaming\csrss.exe
Filesize
41KB

MD5
ac4cefd985abf452eb08bdfb8a2f77c7

SHA1
fe77f66e7a2202e586bbfc45153f9c54c4d15a4b

SHA256
556f30289be83a5c12777535bc1848b7b0966432500c14089d7340785f7eef11

SHA512
e706a6ab561aeb18f37e37a56a761249d3a0a3709e77077d8f2aee6a309f0d5e9a6c33ef92e96d97101467b90ee3177b0f4b7c8a93d618cd4586bde3f73819cc

Download Submit
memory/428-132-0x0000000074920000-0x0000000074ED1000-memory.dmp

Filesize
5.7MB

Download
memory/428-133-0x0000000074920000-0x0000000074ED1000-memory.dmp

Filesize
5.7MB

Download
memory/428-139-0x0000000074920000-0x0000000074ED1000-memory.dmp

Filesize
5.7MB

Download
memory/2568-134-0x0000000000000000-mapping.dmp

Download
memory/2568-137-0x0000000074920000-0x0000000074ED1000-memory.dmp

Filesize
5.7MB

Download
memory/2568-138-0x0000000074920000-0x0000000074ED1000-memory.dmp

Filesize
5.7MB

Download