Malware Analysis Report

2024-09-22 16:46

Sample ID 221130-va38ksgf34
Target 42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0
SHA256 42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0
Tags
darkvnc rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0

Threat Level: Known bad

The file 42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0 was found to be: Known bad.

Malicious Activity Summary

darkvnc rat

DarkVNC

DarkVNC payload

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V6

Analysis: static1

Detonation Overview

Reported

2022-11-30 16:48

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-30 16:48

Reported

2022-12-02 15:34

Platform

win7-20221111-en

Max time kernel

234s

Max time network

337s

Command Line

"C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe"

Signatures

DarkVNC

rat darkvnc

DarkVNC payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 268 set thread context of 432 N/A C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe C:\Windows\system32\WerFault.exe

Enumerates physical storage devices

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

"C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe

Network

N/A

Files

memory/268-54-0x0000000075491000-0x0000000075493000-memory.dmp

memory/268-55-0x0000000000390000-0x00000000003C2000-memory.dmp

memory/268-56-0x0000000000400000-0x00000000007F7000-memory.dmp

memory/268-60-0x0000000010000000-0x0000000010089000-memory.dmp

memory/432-63-0x0000000000000000-mapping.dmp

memory/268-64-0x0000000000400000-0x00000000007F7000-memory.dmp

memory/268-65-0x0000000000400000-0x00000000007F7000-memory.dmp

memory/432-66-0x0000000001C40000-0x0000000001D09000-memory.dmp

memory/268-67-0x0000000000400000-0x0000000000448000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-11-30 16:48

Reported

2022-12-02 15:36

Platform

win10v2004-20221111-en

Max time kernel

302s

Max time network

440s

Command Line

"C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

"C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe"

Network

Country Destination Domain Proto
N/A 93.184.221.240:80 tcp
N/A 104.80.225.205:443 tcp
N/A 20.189.173.12:443 tcp
N/A 20.189.173.5:443 tcp
N/A 87.248.202.1:80 tcp
N/A 87.248.202.1:80 tcp
N/A 87.248.202.1:80 tcp
N/A 52.242.101.226:443 tcp
N/A 52.242.101.226:443 tcp
N/A 8.8.8.8:53 176.122.125.40.in-addr.arpa udp
N/A 8.8.8.8:53 a.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.5.0.8.0.0.3.0.1.3.0.6.2.ip6.arpa udp

Files

N/A