Malware Analysis Report

2025-08-05 19:43

Sample ID 240402-nnrndaha87
Target file
SHA256 5bde316bb02a4d1c0e5530093c04f48e6bb862a828f154b5ad2a19c3a032937d
Tags
vidar stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

5bde316bb02a4d1c0e5530093c04f48e6bb862a828f154b5ad2a19c3a032937d

Threat Level: Known bad

The file file was found to be: Known bad.

Malicious Activity Summary

vidar stealer

Detect Vidar Stealer

Vidar

Suspicious use of SetThreadContext

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-02 11:32

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-02 11:32

Reported

2024-04-02 11:35

Platform

win7-20240319-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\file.exe"

Signatures

Detect Vidar Stealer

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

Vidar

stealer vidar

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\file.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\SysWOW64\WerFault.exe
PID 1980 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\SysWOW64\WerFault.exe
PID 1980 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\SysWOW64\WerFault.exe
PID 1980 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\SysWOW64\WerFault.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1980 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\file.exe

"C:\Users\Admin\AppData\Local\Temp\file.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 556

Network

N/A

Files

memory/1980-0-0x0000000000C40000-0x0000000000C7E000-memory.dmp

memory/1980-1-0x0000000074990000-0x000000007507E000-memory.dmp

memory/1980-4-0x0000000002260000-0x0000000004260000-memory.dmp

memory/2224-5-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2224-6-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2224-7-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2224-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2224-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1980-10-0x0000000074990000-0x000000007507E000-memory.dmp

memory/1980-11-0x0000000002260000-0x0000000004260000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-02 11:32

Reported

2024-04-02 11:35

Platform

win10v2004-20240226-en

Max time kernel

146s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\file.exe"

Signatures

Detect Vidar Stealer

stealer
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

Vidar

stealer vidar

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3984 set thread context of 4812 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\file.exe

"C:\Users\Admin\AppData\Local\Temp\file.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3984 -ip 3984

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 808

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4812 -ip 4812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 2328

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 41.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 steamcommunity.com udp
GB 104.82.234.109:443 steamcommunity.com tcp
US 8.8.8.8:53 109.234.82.104.in-addr.arpa udp
DE 168.119.60.168:443 168.119.60.168 tcp
US 8.8.8.8:53 168.60.119.168.in-addr.arpa udp
DE 168.119.60.168:443 168.119.60.168 tcp
DE 168.119.60.168:443 168.119.60.168 tcp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
DE 168.119.60.168:443 168.119.60.168 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 57.162.23.2.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp

Files

memory/3984-0-0x00000000005D0000-0x000000000060E000-memory.dmp

memory/3984-1-0x0000000074430000-0x0000000074BE0000-memory.dmp

memory/4812-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4812-7-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3984-10-0x00000000029D0000-0x00000000049D0000-memory.dmp

memory/4812-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3984-14-0x0000000074430000-0x0000000074BE0000-memory.dmp