Malware Analysis Report

2024-11-16 13:48

Sample ID 240629-mwlawswcje
Target 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02
SHA256 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02
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

05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02

Threat Level: Known bad

The file 05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

Downloads MZ/PE file

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Executes dropped EXE

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Checks processor information in registry

Delays execution with timeout.exe

Modifies system certificate store

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 10:48

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 10:48

Reported

2024-06-29 10:51

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.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

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katF220.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 868 set thread context of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\katF220.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\katF220.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\katF220.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\katF220.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 868 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp
PID 868 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp
PID 868 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp
PID 868 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp
PID 868 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp
PID 868 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp
PID 868 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp
PID 868 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\katF220.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe

"C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe"

C:\Users\Admin\AppData\Local\Temp\katF220.tmp

C:\Users\Admin\AppData\Local\Temp\katF220.tmp

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1036 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.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 23.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.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
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
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.200.10:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 pki.goog udp
US 8.8.8.8:53 pki.goog udp
US 216.239.32.29:80 pki.goog tcp
US 8.8.8.8:53 i.pki.goog udp
US 8.8.8.8:53 i.pki.goog udp
GB 172.217.169.67:80 i.pki.goog tcp
US 8.8.8.8:53 10.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 29.32.239.216.in-addr.arpa udp
US 8.8.8.8:53 67.169.217.172.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 18.173.189.20.in-addr.arpa udp

Files

memory/868-0-0x00000000023B0000-0x00000000023B1000-memory.dmp

memory/868-1-0x0000000004110000-0x0000000004220000-memory.dmp

memory/5080-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katF220.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/868-8-0x0000000000400000-0x0000000000635000-memory.dmp

memory/5080-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-25-0x0000000024D90000-0x0000000024FEF000-memory.dmp

memory/5080-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-41-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-42-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 10:48

Reported

2024-06-29 10:51

Platform

win11-20240508-en

Max time kernel

145s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.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
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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\kat8BB5.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2084 set thread context of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp

Enumerates physical storage devices

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\kat8BB5.tmp N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat8BB5.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 2084 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp
PID 2084 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp
PID 2084 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp
PID 2084 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp
PID 2084 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp
PID 2084 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp
PID 2084 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp
PID 2084 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp
PID 232 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp C:\Windows\SysWOW64\cmd.exe
PID 232 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp C:\Windows\SysWOW64\cmd.exe
PID 232 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp C:\Windows\SysWOW64\cmd.exe
PID 2644 wrote to memory of 556 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2644 wrote to memory of 556 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2644 wrote to memory of 556 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe

"C:\Users\Admin\AppData\Local\Temp\05f8a91d22dcd2a1e9acc913a8609b155868b78eb3692f0365fa54d08548fc02.exe"

C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp

C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp" & rd /s /q "C:\ProgramData\DBFCBGCGIJKJ" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 steamcommunity.com udp
US 8.8.8.8:53 tea.arpdabl.org udp

Files

memory/2084-0-0x0000000002470000-0x0000000002471000-memory.dmp

memory/2084-1-0x0000000004030000-0x0000000004140000-memory.dmp

memory/232-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat8BB5.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/232-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/232-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2084-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/232-11-0x0000000000400000-0x0000000000648000-memory.dmp

memory/232-12-0x0000000000400000-0x0000000000648000-memory.dmp

memory/232-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/232-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/232-15-0x0000000000400000-0x0000000000648000-memory.dmp