Malware Analysis Report

2024-11-16 13:47

Sample ID 240629-alswrsyhlq
Target 21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a
SHA256 21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a
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

21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a

Threat Level: Known bad

The file 21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Vidar

Stealc

Downloads MZ/PE file

Checks computer location settings

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Executes dropped EXE

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Suspicious use of WriteProcessMemory

Delays execution with timeout.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 00:18

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 00:18

Reported

2024-06-29 00:20

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat40F1.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 1900 set thread context of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.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\kat40F1.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat40F1.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 1900 wrote to memory of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp
PID 1900 wrote to memory of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp
PID 1900 wrote to memory of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp
PID 1900 wrote to memory of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp
PID 1900 wrote to memory of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp
PID 1900 wrote to memory of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp
PID 1900 wrote to memory of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp
PID 1900 wrote to memory of 3652 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp
PID 3652 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp C:\Windows\SysWOW64\cmd.exe
PID 3652 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp C:\Windows\SysWOW64\cmd.exe
PID 3652 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp C:\Windows\SysWOW64\cmd.exe
PID 2260 wrote to memory of 2708 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2260 wrote to memory of 2708 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2260 wrote to memory of 2708 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe

"C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe"

C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp

C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp" & rd /s /q "C:\ProgramData\DHJECFCGHIDG" & 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 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 131.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.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 41.249.124.192.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
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
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
US 8.8.8.8:53 58.55.71.13.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
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 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/1900-0-0x0000000002270000-0x0000000002271000-memory.dmp

memory/1900-1-0x0000000002A40000-0x0000000002B50000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat40F1.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3652-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1900-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/3652-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-25-0x0000000022650000-0x00000000228AF000-memory.dmp

memory/3652-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-59-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-60-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-71-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-72-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-73-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3652-74-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 00:18

Reported

2024-06-29 00:20

Platform

win11-20240611-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
N/A N/A N/A N/A
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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\kat59D8.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 3488 set thread context of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.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\kat59D8.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat59D8.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 3488 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp
PID 3488 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp
PID 3488 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp
PID 3488 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp
PID 3488 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp
PID 3488 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp
PID 3488 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp
PID 3488 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp
PID 4456 wrote to memory of 3524 N/A C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp C:\Windows\SysWOW64\cmd.exe
PID 4456 wrote to memory of 3524 N/A C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp C:\Windows\SysWOW64\cmd.exe
PID 4456 wrote to memory of 3524 N/A C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp C:\Windows\SysWOW64\cmd.exe
PID 3524 wrote to memory of 3972 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3524 wrote to memory of 3972 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3524 wrote to memory of 3972 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe

"C:\Users\Admin\AppData\Local\Temp\21219569e2131279e59cfa47033b4c13c7ae1065e70b709ed1d76edc1f6ac02a.exe"

C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp

C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp" & rd /s /q "C:\ProgramData\GIJDAFBKFIEC" & 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
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 131.83.221.88.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 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/3488-0-0x00000000024A0000-0x00000000024A1000-memory.dmp

memory/3488-1-0x0000000002B70000-0x0000000002C80000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat59D8.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4456-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3488-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4456-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-27-0x00000000227D0000-0x0000000022A2F000-memory.dmp

memory/4456-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-36-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-44-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-45-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-61-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-62-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-69-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-74-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-75-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4456-76-0x0000000000400000-0x0000000000648000-memory.dmp