Malware Analysis Report

2024-11-16 13:50

Sample ID 240628-ak9swszgqh
Target 8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4
SHA256 8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4
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

8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4

Threat Level: Known bad

The file 8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Vidar

Stealc

Downloads MZ/PE file

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Executes dropped EXE

Checks computer location settings

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Delays execution with timeout.exe

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 00:17

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 00:17

Reported

2024-06-28 00:20

Platform

win11-20240611-en

Max time kernel

90s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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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\kat5081.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3052 set thread context of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat5081.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat5081.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3052 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp
PID 3052 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp
PID 3052 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp
PID 3052 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp
PID 3052 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp
PID 3052 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp
PID 3052 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp
PID 3052 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat5081.tmp
PID 4416 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\kat5081.tmp C:\Windows\SysWOW64\cmd.exe
PID 4416 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\kat5081.tmp C:\Windows\SysWOW64\cmd.exe
PID 4416 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\kat5081.tmp C:\Windows\SysWOW64\cmd.exe
PID 4960 wrote to memory of 3224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4960 wrote to memory of 3224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4960 wrote to memory of 3224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe

"C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe"

C:\Users\Admin\AppData\Local\Temp\kat5081.tmp

C:\Users\Admin\AppData\Local\Temp\kat5081.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5081.tmp" & rd /s /q "C:\ProgramData\HCAAEGIJKEGH" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 41.249.124.192.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 207.180.253.128:80 tea.arpdabl.org tcp

Files

memory/3052-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

memory/3052-2-0x0000000002A90000-0x0000000002BA0000-memory.dmp

memory/4416-9-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5081.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4416-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3052-10-0x0000000000400000-0x000000000058E000-memory.dmp

memory/4416-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-28-0x000000002D120000-0x000000002D37F000-memory.dmp

memory/4416-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-36-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-44-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-45-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-61-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-62-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-73-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-74-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-75-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4416-76-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 00:17

Reported

2024-06-28 00:20

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2308 set thread context of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2308 wrote to memory of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp
PID 2308 wrote to memory of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp
PID 2308 wrote to memory of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp
PID 2308 wrote to memory of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp
PID 2308 wrote to memory of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp
PID 2308 wrote to memory of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp
PID 2308 wrote to memory of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp
PID 2308 wrote to memory of 1364 N/A C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp
PID 1364 wrote to memory of 3368 N/A C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp C:\Windows\SysWOW64\cmd.exe
PID 1364 wrote to memory of 3368 N/A C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp C:\Windows\SysWOW64\cmd.exe
PID 1364 wrote to memory of 3368 N/A C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp C:\Windows\SysWOW64\cmd.exe
PID 3368 wrote to memory of 3756 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3368 wrote to memory of 3756 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3368 wrote to memory of 3756 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe

"C:\Users\Admin\AppData\Local\Temp\8525216ca0f0f91a7d585e21ddf4de5b73706a485738ca72a1b2f583ab9d77b4.exe"

C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp

C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp" & rd /s /q "C:\ProgramData\GDBAKKKFBGDH" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.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
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 24.249.124.192.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 214.251.201.195.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 tea.arpdabl.org udp
DE 207.180.253.128:80 tea.arpdabl.org tcp
US 8.8.8.8:53 128.253.180.207.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 57.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 26.73.42.20.in-addr.arpa udp

Files

memory/2308-0-0x0000000002320000-0x0000000002321000-memory.dmp

memory/2308-1-0x0000000002BD0000-0x0000000002CE0000-memory.dmp

memory/1364-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2308-10-0x0000000000400000-0x000000000058E000-memory.dmp

memory/1364-9-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat57C5.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1364-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-25-0x0000000022770000-0x00000000229CF000-memory.dmp

memory/1364-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-59-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-60-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-61-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-72-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-73-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1364-74-0x0000000000400000-0x0000000000648000-memory.dmp