Malware Analysis Report

2024-09-11 16:50

Sample ID 240615-wdsfxsyhnc
Target 2516-80-0x0000000000400000-0x0000000000648000-memory.dmp
SHA256 aaf00a2b20195e97ad7b17efe4b82b1cab0c2463567c4861b423f696d7ffdc66
Tags
stealer vidar stealc
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

aaf00a2b20195e97ad7b17efe4b82b1cab0c2463567c4861b423f696d7ffdc66

Threat Level: Known bad

The file 2516-80-0x0000000000400000-0x0000000000648000-memory.dmp was found to be: Known bad.

Malicious Activity Summary

stealer vidar stealc

Detect Vidar Stealer

Stealc family

Vidar family

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-15 17:48

Signatures

Detect Vidar Stealer

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

Stealc family

stealc

Vidar family

vidar

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 17:48

Reported

2024-06-15 17:51

Platform

win7-20231129-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe"

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1976 wrote to memory of 2180 N/A C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe C:\Windows\SysWOW64\WerFault.exe
PID 1976 wrote to memory of 2180 N/A C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe C:\Windows\SysWOW64\WerFault.exe
PID 1976 wrote to memory of 2180 N/A C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe C:\Windows\SysWOW64\WerFault.exe
PID 1976 wrote to memory of 2180 N/A C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe

"C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 36

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 17:48

Reported

2024-06-15 17:51

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe"

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe

"C:\Users\Admin\AppData\Local\Temp\2516-80-0x0000000000400000-0x0000000000648000-memory.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4000 -ip 4000

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4000 -s 224

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 74.83.221.88.in-addr.arpa udp
BE 88.221.83.209:443 www.bing.com tcp
US 8.8.8.8:53 209.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 35.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 105.83.221.88.in-addr.arpa udp
NL 52.111.243.30:443 tcp
US 8.8.8.8:53 114.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 58.189.79.40.in-addr.arpa udp

Files

N/A