Malware Analysis Report

2024-11-16 13:46

Sample ID 240628-sdxtvsvekd
Target eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf
SHA256 eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf
Tags
stealc vidar discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf

Threat Level: Known bad

The file eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

Downloads MZ/PE file

Executes dropped EXE

Reads user/profile data of web browsers

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 15:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 15:01

Reported

2024-06-28 15:03

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.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
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

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2040 set thread context of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2040 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp
PID 2040 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp
PID 2040 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp
PID 2040 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp
PID 2040 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp
PID 2040 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp
PID 2040 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp
PID 2040 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe

"C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe"

C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp

C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 214.251.201.195.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 232.168.11.51.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 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/2040-0-0x0000000002290000-0x0000000002291000-memory.dmp

memory/2040-2-0x0000000002A80000-0x0000000002B90000-memory.dmp

memory/1780-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3F89.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1780-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2040-6-0x0000000000400000-0x0000000000635000-memory.dmp

memory/1780-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1780-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1780-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1780-25-0x00000000226C0000-0x000000002291F000-memory.dmp

memory/1780-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1780-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 15:01

Reported

2024-06-28 15:03

Platform

win11-20240508-en

Max time kernel

90s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.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
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

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1796 set thread context of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1796 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp
PID 1796 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp
PID 1796 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp
PID 1796 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp
PID 1796 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp
PID 1796 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp
PID 1796 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp
PID 1796 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe

"C:\Users\Admin\AppData\Local\Temp\eb7f8d5edbb96f7e2d103bd514a00ff80f9f0b5fa54e728b09a305eee26b7daf.exe"

C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp

C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp

Files

memory/1796-0-0x00000000024A0000-0x00000000024A1000-memory.dmp

memory/1796-2-0x0000000002A50000-0x0000000002B60000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat54D7.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3256-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3256-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1796-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/3256-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3256-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3256-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3256-26-0x000000002D2D0000-0x000000002D52F000-memory.dmp

memory/3256-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3256-41-0x0000000000400000-0x0000000000648000-memory.dmp