Malware Analysis Report

2024-09-22 16:46

Sample ID 231231-h4bn7sgde9
Target 2d0b8663c370b76694a77d6ce5f3897c
SHA256 bfec5909532fa13fa9e1a2ef05a6d053c44a6aae7f75715bd6f8b0c6264e7330
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

bfec5909532fa13fa9e1a2ef05a6d053c44a6aae7f75715bd6f8b0c6264e7330

Threat Level: Known bad

The file 2d0b8663c370b76694a77d6ce5f3897c was found to be: Known bad.

Malicious Activity Summary

darkvnc rat

DarkVNC

DarkVNC payload

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-31 07:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-31 07:16

Reported

2024-01-05 21:47

Platform

win7-20231215-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1380 set thread context of 2320 N/A C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.exe C:\Windows\system32\WerFault.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.exe

"C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe

Network

N/A

Files

memory/1380-1-0x0000000002DE0000-0x0000000002EE0000-memory.dmp

memory/1380-2-0x0000000000220000-0x00000000002A8000-memory.dmp

memory/1380-5-0x0000000000400000-0x0000000002CA6000-memory.dmp

memory/2320-4-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmp

memory/2320-7-0x0000000001C20000-0x0000000001CEA000-memory.dmp

memory/2320-9-0x0000000000170000-0x0000000000171000-memory.dmp

memory/2320-12-0x0000000001C20000-0x0000000001CEA000-memory.dmp

memory/2320-13-0x0000000001C20000-0x0000000001CEA000-memory.dmp

memory/1380-14-0x0000000000400000-0x0000000002CA6000-memory.dmp

memory/1380-15-0x0000000000220000-0x00000000002A8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 07:16

Reported

2024-01-05 21:47

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.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 4456 wrote to memory of 4084 N/A C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.exe C:\Windows\system32\WerFault.exe
PID 4456 wrote to memory of 4084 N/A C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.exe

"C:\Users\Admin\AppData\Local\Temp\2d0b8663c370b76694a77d6ce5f3897c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4456 -ip 4456

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 564

Network

Country Destination Domain Proto
US 8.8.8.8:53 19.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 61.179.17.96.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 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 23.160.77.104.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 28.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 68.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 65.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 55.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 udp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 83.179.17.96.in-addr.arpa udp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
US 8.8.8.8:53 udp
N/A 204.79.197.200:443 tcp
N/A 204.79.197.200:443 tcp
N/A 204.79.197.200:443 tcp
N/A 204.79.197.200:443 tcp
N/A 204.79.197.200:443 tcp
US 192.229.221.95:80 tcp
US 8.8.8.8:53 udp
N/A 20.44.10.122:443 tcp
US 8.8.8.8:53 udp
US 192.229.221.95:80 tcp
US 8.8.8.8:53 udp
GB 104.77.160.23:80 tcp
GB 104.77.160.23:80 tcp
US 8.8.8.8:53 udp
GB 104.77.160.23:80 tcp
GB 104.77.160.23:80 tcp
US 8.8.8.8:53 udp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
GB 96.17.179.83:80 tcp
US 93.184.221.240:80 tcp
GB 104.77.160.23:80 tcp

Files

memory/4456-2-0x0000000004A70000-0x0000000004AF8000-memory.dmp

memory/4456-1-0x0000000002ED0000-0x0000000002FD0000-memory.dmp

memory/4456-4-0x0000000000400000-0x0000000002CA6000-memory.dmp

memory/4456-5-0x0000000000400000-0x0000000002CA6000-memory.dmp

memory/4456-6-0x0000000004A70000-0x0000000004AF8000-memory.dmp