Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-rx47lshg2y
Target 2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072
SHA256 2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072
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

2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072

Threat Level: Known bad

The file 2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

Stealc

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 behavior: EnumeratesProcesses

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 14:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 14:35

Reported

2024-06-07 14:37

Platform

win10v2004-20240426-en

Max time kernel

93s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.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\kat30B5.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 1624 set thread context of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.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\kat30B5.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1624 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp
PID 1624 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp
PID 1624 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp
PID 1624 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp
PID 1624 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp
PID 1624 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp
PID 1624 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp
PID 1624 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe

"C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe"

C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp

C:\Users\Admin\AppData\Local\Temp\kat30B5.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
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 88.251.17.2.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
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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
US 8.8.8.8:53 196.249.167.52.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
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 216.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/1624-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

memory/1624-1-0x0000000002A00000-0x0000000002B63000-memory.dmp

memory/4588-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4588-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1624-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4588-10-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat30B5.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4588-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4588-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4588-16-0x000000001DBB0000-0x000000001DE0F000-memory.dmp

memory/4588-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4588-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 14:35

Reported

2024-06-07 14:37

Platform

win11-20240508-en

Max time kernel

146s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.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\kat7D9C.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 240 set thread context of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.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\kat7D9C.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 240 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp
PID 240 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp
PID 240 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp
PID 240 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp
PID 240 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp
PID 240 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp
PID 240 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp
PID 240 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe

"C:\Users\Admin\AppData\Local\Temp\2b228b30b511f9412678cf6fe414ec1d3ef28cf8ff0dcd669944c34f8a91c072.exe"

C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp

C:\Users\Admin\AppData\Local\Temp\kat7D9C.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 8.8.8.8:53 172.210.232.199.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
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
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
IE 52.111.236.22:443 tcp

Files

memory/240-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/240-1-0x0000000004210000-0x0000000004373000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat7D9C.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3044-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3044-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3044-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/240-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3044-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3044-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3044-18-0x000000001B7E0000-0x000000001BA3F000-memory.dmp

memory/3044-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3044-34-0x0000000000400000-0x0000000000648000-memory.dmp