Malware Analysis Report

2024-11-16 13:44

Sample ID 240607-xm2xdscb7z
Target 8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3
SHA256 8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3
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

8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3

Threat Level: Known bad

The file 8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Vidar

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 use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Modifies system certificate store

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 18:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 18:59

Reported

2024-06-07 19:01

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.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\kat43EE.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 3724 set thread context of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.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\kat43EE.tmp N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4 C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4\Blob = 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 C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3724 wrote to memory of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp
PID 3724 wrote to memory of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp
PID 3724 wrote to memory of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp
PID 3724 wrote to memory of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp
PID 3724 wrote to memory of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp
PID 3724 wrote to memory of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp
PID 3724 wrote to memory of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp
PID 3724 wrote to memory of 4708 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe

"C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe"

C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp

C:\Users\Admin\AppData\Local\Temp\kat43EE.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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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
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
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 76.32.126.40.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 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 100.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 16.173.189.20.in-addr.arpa udp

Files

memory/3724-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

memory/3724-2-0x0000000002A30000-0x0000000002B93000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat43EE.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3724-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4708-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4708-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4708-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4708-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4708-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4708-16-0x000000001DC10000-0x000000001DE6F000-memory.dmp

memory/4708-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4708-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 18:59

Reported

2024-06-07 19:01

Platform

win11-20240426-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.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\kat58DE.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 4584 set thread context of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.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\kat58DE.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4584 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp
PID 4584 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp
PID 4584 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp
PID 4584 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp
PID 4584 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp
PID 4584 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp
PID 4584 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp
PID 4584 wrote to memory of 1896 N/A C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe

"C:\Users\Admin\AppData\Local\Temp\8c928a639f79d717c58828ff07a6065dfb87dd137dfad0f373a24140047fa9e3.exe"

C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp

C:\Users\Admin\AppData\Local\Temp\kat58DE.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
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/4584-0-0x00000000023B0000-0x00000000023B1000-memory.dmp

memory/4584-1-0x00000000040B0000-0x0000000004213000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat58DE.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1896-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1896-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4584-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/1896-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1896-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1896-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1896-19-0x00000000193F0000-0x000000001964F000-memory.dmp

memory/1896-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1896-34-0x0000000000400000-0x0000000000648000-memory.dmp