Malware Analysis Report

2024-11-15 06:40

Sample ID 240603-ksvztaag73
Target cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2
SHA256 cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2
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

cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2

Threat Level: Known bad

The file cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2 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

2024-06-03 08:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 08:52

Reported

2024-06-03 08:54

Platform

win10v2004-20240508-en

Max time kernel

132s

Max time network

101s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.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
N/A N/A N/A N/A

Stealc

stealer stealc

Vidar

stealer vidar

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat8AEA.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 4828 set thread context of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.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\kat8AEA.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4828 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp
PID 4828 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp
PID 4828 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp
PID 4828 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp
PID 4828 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp
PID 4828 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp
PID 4828 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp
PID 4828 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe

"C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe"

C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp

C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 0.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 245.158.13.49.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 tcp
DE 49.13.158.245:5432 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/4828-0-0x0000000002210000-0x0000000002211000-memory.dmp

memory/4828-1-0x0000000002900000-0x0000000002A4C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat8AEA.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1380-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1380-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4828-9-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/1380-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1380-13-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1380-14-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1380-16-0x000000001B740000-0x000000001B99F000-memory.dmp

memory/1380-31-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1380-47-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1380-48-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 08:52

Reported

2024-06-03 08:54

Platform

win11-20240426-en

Max time kernel

91s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.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\kat4F58.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 1448 set thread context of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.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\kat4F58.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1448 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 1448 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 1448 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 1448 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 1448 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 1448 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 1448 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 1448 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe

"C:\Users\Admin\AppData\Local\Temp\cc94ea782054aeb9a0df17ba17c0ba5aa44329132a11851547c7d58847d09df2.exe"

C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp

C:\Users\Admin\AppData\Local\Temp\kat4F58.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 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp

Files

memory/1448-0-0x0000000002320000-0x0000000002321000-memory.dmp

memory/1448-2-0x0000000004020000-0x000000000416C000-memory.dmp

memory/3540-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1448-10-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/3540-9-0x0000000000400000-0x0000000000649000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3540-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/3540-24-0x0000000000400000-0x0000000000649000-memory.dmp

memory/3540-25-0x0000000000400000-0x0000000000649000-memory.dmp

memory/3540-27-0x00000000200F0000-0x000000002034F000-memory.dmp

memory/3540-42-0x0000000000400000-0x0000000000649000-memory.dmp

memory/3540-43-0x0000000000400000-0x0000000000649000-memory.dmp