Malware Analysis Report

2024-11-16 13:48

Sample ID 240628-pzjycashmp
Target 303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8
SHA256 303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8
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

303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8

Threat Level: Known bad

The file 303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

Downloads MZ/PE file

Reads user/profile data of web browsers

Executes dropped EXE

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 12:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 12:45

Reported

2024-06-28 12:48

Platform

win10v2004-20240611-en

Max time kernel

133s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.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\kat3DE4.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 4380 set thread context of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4380 wrote to memory of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp
PID 4380 wrote to memory of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp
PID 4380 wrote to memory of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp
PID 4380 wrote to memory of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp
PID 4380 wrote to memory of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp
PID 4380 wrote to memory of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp
PID 4380 wrote to memory of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp
PID 4380 wrote to memory of 780 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe

"C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe"

C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp

C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 2.17.107.99:443 www.bing.com tcp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 99.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 41.249.124.192.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
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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/4380-0-0x0000000002290000-0x0000000002291000-memory.dmp

memory/4380-1-0x0000000002A00000-0x0000000002B10000-memory.dmp

memory/780-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/780-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3DE4.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/780-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4380-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/780-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/780-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/780-25-0x0000000020100000-0x000000002035F000-memory.dmp

memory/780-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/780-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 12:45

Reported

2024-06-28 12:48

Platform

win11-20240508-en

Max time kernel

90s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.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\kat52D3.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 2952 set thread context of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.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\kat52D3.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2952 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp
PID 2952 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp
PID 2952 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp
PID 2952 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp
PID 2952 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp
PID 2952 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp
PID 2952 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp
PID 2952 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe

"C:\Users\Admin\AppData\Local\Temp\303178fee6fe3f0fd259da14b572e7e82daf1ce57a14defe92e8816045acabb8.exe"

C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp

C:\Users\Admin\AppData\Local\Temp\kat52D3.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 23.249.124.192.in-addr.arpa udp
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
DE 195.201.251.214:9000 195.201.251.214 tcp
IE 52.111.236.22:443 tcp

Files

memory/2952-0-0x00000000024A0000-0x00000000024A1000-memory.dmp

memory/2952-2-0x0000000004010000-0x0000000004120000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat52D3.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2396-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2952-8-0x0000000000400000-0x0000000000635000-memory.dmp

memory/2396-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2396-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2396-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2396-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2396-27-0x000000002D120000-0x000000002D37F000-memory.dmp

memory/2396-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2396-43-0x0000000000400000-0x0000000000648000-memory.dmp