Malware Analysis Report

2024-11-16 13:48

Sample ID 240629-e9p71athjq
Target c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424
SHA256 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424

Threat Level: Known bad

The file c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

Stealc

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

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 04:38

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 04:38

Reported

2024-06-29 04:41

Platform

win11-20240611-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.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\kat4CC8.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 1072 set thread context of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.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\kat4CC8.tmp N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1072 wrote to memory of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp
PID 1072 wrote to memory of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp
PID 1072 wrote to memory of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp
PID 1072 wrote to memory of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp
PID 1072 wrote to memory of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp
PID 1072 wrote to memory of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp
PID 1072 wrote to memory of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp
PID 1072 wrote to memory of 4524 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe

"C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe"

C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp

C:\Users\Admin\AppData\Local\Temp\kat4CC8.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
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
US 52.111.227.13:443 tcp

Files

memory/1072-0-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/1072-2-0x0000000002C20000-0x0000000002D30000-memory.dmp

memory/4524-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4524-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4524-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1072-10-0x0000000000400000-0x0000000000635000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4524-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4524-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4524-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4524-27-0x000000002D180000-0x000000002D3DF000-memory.dmp

memory/4524-36-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 04:38

Reported

2024-06-29 04:41

Platform

win10v2004-20240508-en

Max time kernel

124s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.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\katE733.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 3296 set thread context of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.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\katE733.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\katE733.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3296 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.tmp
PID 3296 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.tmp
PID 3296 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.tmp
PID 3296 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.tmp
PID 3296 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.tmp
PID 3296 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.tmp
PID 3296 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.tmp
PID 3296 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe C:\Users\Admin\AppData\Local\Temp\katE733.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe

"C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe"

C:\Users\Admin\AppData\Local\Temp\katE733.tmp

C:\Users\Admin\AppData\Local\Temp\katE733.tmp

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3988,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8

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 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.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 24.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 214.251.201.195.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.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
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/3296-0-0x0000000002290000-0x0000000002291000-memory.dmp

memory/3296-1-0x0000000004100000-0x0000000004210000-memory.dmp

memory/4400-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4400-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3296-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4400-9-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katE733.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4400-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4400-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4400-25-0x00000000227B0000-0x0000000022A0F000-memory.dmp

memory/4400-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4400-41-0x0000000000400000-0x0000000000648000-memory.dmp