Malware Analysis Report

2024-11-16 13:44

Sample ID 240607-dyfzhsgh6z
Target 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422
SHA256 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422
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

8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422

Threat Level: Known bad

The file 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422 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 behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 03:24

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 03:24

Reported

2024-06-07 03:27

Platform

win11-20240426-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.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\kat472B.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 4532 set thread context of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.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\kat472B.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat472B.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat472B.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4532 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.tmp
PID 4532 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.tmp
PID 4532 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.tmp
PID 4532 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.tmp
PID 4532 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.tmp
PID 4532 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.tmp
PID 4532 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.tmp
PID 4532 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat472B.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe

"C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe"

C:\Users\Admin\AppData\Local\Temp\kat472B.tmp

C:\Users\Admin\AppData\Local\Temp\kat472B.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 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 52.111.227.11:443 tcp

Files

memory/4532-0-0x0000000002580000-0x0000000002581000-memory.dmp

memory/4532-1-0x0000000004310000-0x0000000004476000-memory.dmp

memory/1100-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat472B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1100-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4532-9-0x0000000000400000-0x00000000006EF000-memory.dmp

memory/1100-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1100-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1100-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1100-18-0x0000000019400000-0x000000001965F000-memory.dmp

memory/1100-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1100-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 03:24

Reported

2024-06-07 03:27

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.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\kat5331.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 808 set thread context of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.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\kat5331.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5331.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5331.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 808 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
PID 808 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
PID 808 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
PID 808 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
PID 808 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
PID 808 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
PID 808 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
PID 808 wrote to memory of 1216 N/A C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe C:\Users\Admin\AppData\Local\Temp\kat5331.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe

"C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe"

C:\Users\Admin\AppData\Local\Temp\kat5331.tmp

C:\Users\Admin\AppData\Local\Temp\kat5331.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 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 41.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
NL 23.62.61.185:443 www.bing.com tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 185.61.62.23.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp

Files

memory/808-0-0x0000000000980000-0x0000000000981000-memory.dmp

memory/808-1-0x0000000002AA0000-0x0000000002C06000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5331.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1216-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1216-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/808-10-0x0000000000400000-0x00000000006EF000-memory.dmp

memory/1216-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1216-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1216-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1216-25-0x000000001DBE0000-0x000000001DE3F000-memory.dmp

memory/1216-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1216-41-0x0000000000400000-0x0000000000648000-memory.dmp