Malware Analysis Report

2024-09-22 16:46

Sample ID 240118-g77elsehd7
Target 64b4db1046496c57a0779befc72c264d
SHA256 d5e0eecc3da1a2bc3f36df0a05c0ce116def64c9e6c72224c8988a671ed7fe8a
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

d5e0eecc3da1a2bc3f36df0a05c0ce116def64c9e6c72224c8988a671ed7fe8a

Threat Level: Known bad

The file 64b4db1046496c57a0779befc72c264d was found to be: Known bad.

Malicious Activity Summary

darkvnc rat

DarkVNC

DarkVNC payload

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-01-18 06:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-18 06:27

Reported

2024-01-18 06:30

Platform

win7-20231215-en

Max time kernel

145s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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 2916 set thread context of 2684 N/A C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.exe C:\Windows\system32\WerFault.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.exe

"C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe

Network

Country Destination Domain Proto
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp
US 23.83.133.152:443 tcp

Files

memory/2916-1-0x0000000002D20000-0x0000000002E20000-memory.dmp

memory/2916-3-0x00000000002A0000-0x0000000000328000-memory.dmp

memory/2916-4-0x0000000000400000-0x0000000002CA6000-memory.dmp

memory/2684-6-0x0000000001D00000-0x0000000001DCA000-memory.dmp

memory/2684-5-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

memory/2684-8-0x0000000000080000-0x0000000000081000-memory.dmp

memory/2684-11-0x0000000001D00000-0x0000000001DCA000-memory.dmp

memory/2684-12-0x0000000001D00000-0x0000000001DCA000-memory.dmp

memory/2684-13-0x0000000001D00000-0x0000000001DCA000-memory.dmp

memory/2684-14-0x0000000001D00000-0x0000000001DCA000-memory.dmp

memory/2916-15-0x0000000000400000-0x0000000002CA6000-memory.dmp

memory/2684-16-0x0000000001D00000-0x0000000001DCA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-18 06:27

Reported

2024-01-18 06:30

Platform

win10v2004-20231222-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.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
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4416 wrote to memory of 3992 N/A C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.exe C:\Windows\system32\WerFault.exe
PID 4416 wrote to memory of 3992 N/A C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.exe

"C:\Users\Admin\AppData\Local\Temp\64b4db1046496c57a0779befc72c264d.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4416 -ip 4416

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4416 -s 548

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 udp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp

Files

memory/4416-1-0x0000000002D10000-0x0000000002E10000-memory.dmp

memory/4416-2-0x0000000004AC0000-0x0000000004B48000-memory.dmp

memory/4416-4-0x0000000000400000-0x0000000002CA6000-memory.dmp

memory/4416-5-0x0000000000400000-0x0000000002CA6000-memory.dmp

memory/4416-6-0x0000000004AC0000-0x0000000004B48000-memory.dmp