Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-fh3vfsab72
Target 9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2
SHA256 9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2
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

9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2

Threat Level: Known bad

The file 9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2 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

2024-06-08 04:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 04:53

Reported

2024-06-08 04:55

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.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\kat8C90.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 2504 set thread context of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.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\kat8C90.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2504 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp
PID 2504 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp
PID 2504 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp
PID 2504 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp
PID 2504 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp
PID 2504 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp
PID 2504 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp
PID 2504 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe

"C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe"

C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp

C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.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
US 8.8.8.8:53 104.219.191.52.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
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 200.64.52.20.in-addr.arpa udp

Files

memory/2504-0-0x00000000023E0000-0x00000000023E1000-memory.dmp

memory/2504-1-0x0000000003D00000-0x0000000003E63000-memory.dmp

memory/216-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/216-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat8C90.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2504-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/216-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/216-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/216-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/216-16-0x000000001B760000-0x000000001B9BF000-memory.dmp

memory/216-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/216-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 04:53

Reported

2024-06-08 04:55

Platform

win11-20240508-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.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\kat7242.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 3504 set thread context of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.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\kat7242.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7242.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7242.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3504 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.tmp
PID 3504 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.tmp
PID 3504 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.tmp
PID 3504 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.tmp
PID 3504 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.tmp
PID 3504 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.tmp
PID 3504 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.tmp
PID 3504 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe C:\Users\Admin\AppData\Local\Temp\kat7242.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe

"C:\Users\Admin\AppData\Local\Temp\9789891e780c7eda37ffc21df06feca39d233b783a4cdfc8f8e77eb7b11f1cc2.exe"

C:\Users\Admin\AppData\Local\Temp\kat7242.tmp

C:\Users\Admin\AppData\Local\Temp\kat7242.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 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.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
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

Files

memory/3504-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/3504-2-0x0000000002BC0000-0x0000000002D23000-memory.dmp

memory/3896-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat7242.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3896-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3896-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3504-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3896-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3896-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3896-28-0x0000000028500000-0x000000002875F000-memory.dmp

memory/3896-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3896-43-0x0000000000400000-0x0000000000648000-memory.dmp