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

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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 Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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