Malware Analysis Report

2024-11-16 13:48

Sample ID 240629-m7d1ysyhnj
Target 38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958
SHA256 38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958
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

38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958

Threat Level: Known bad

The file 38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958 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

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 11:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 11:06

Reported

2024-06-29 11:08

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

159s

Command Line

"C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.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
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\kat38D3.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 980 set thread context of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.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\kat38D3.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 980 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp
PID 980 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp
PID 980 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp
PID 980 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp
PID 980 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp
PID 980 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp
PID 980 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp
PID 980 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe

"C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe"

C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp

C:\Users\Admin\AppData\Local\Temp\kat38D3.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.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 57.169.31.20.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
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
US 13.107.21.237:443 g.bing.com tcp
BE 88.221.83.195:443 www.bing.com 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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
BE 88.221.83.187:443 www.bing.com tcp
US 8.8.8.8:53 187.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.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 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 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 24.173.189.20.in-addr.arpa udp

Files

memory/980-0-0x0000000002390000-0x0000000002391000-memory.dmp

memory/980-2-0x0000000002A90000-0x0000000002BA0000-memory.dmp

memory/1000-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat38D3.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1000-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1000-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/980-6-0x0000000000400000-0x0000000000635000-memory.dmp

memory/1000-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1000-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1000-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1000-26-0x0000000022800000-0x0000000022A5F000-memory.dmp

memory/1000-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1000-35-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 11:06

Reported

2024-06-29 11:08

Platform

win11-20240611-en

Max time kernel

147s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.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
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\kat5AE1.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 4428 set thread context of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.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\kat5AE1.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4428 wrote to memory of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp
PID 4428 wrote to memory of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp
PID 4428 wrote to memory of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp
PID 4428 wrote to memory of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp
PID 4428 wrote to memory of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp
PID 4428 wrote to memory of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp
PID 4428 wrote to memory of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp
PID 4428 wrote to memory of 1892 N/A C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe

"C:\Users\Admin\AppData\Local\Temp\38fbd92abfd60fad7062510f0a3020609a27453f3a3cee298b2674353a1a2958.exe"

C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp

C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.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
DE 195.201.251.214:9000 195.201.251.214 tcp

Files

memory/4428-0-0x0000000002390000-0x0000000002391000-memory.dmp

memory/4428-1-0x0000000002B60000-0x0000000002C70000-memory.dmp

memory/1892-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1892-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5AE1.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4428-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/1892-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1892-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1892-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1892-26-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1892-28-0x000000002F6B0000-0x000000002F90F000-memory.dmp

memory/1892-36-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1892-37-0x0000000000400000-0x0000000000648000-memory.dmp