Malware Analysis Report

2024-11-16 13:49

Sample ID 240628-3far8avelb
Target 1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb
SHA256 1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb
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

1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb

Threat Level: Known bad

The file 1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Stealc

Detect Vidar Stealer

Downloads MZ/PE file

Reads data files stored by FTP clients

Checks computer location settings

Reads user/profile data of web browsers

Executes dropped EXE

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

Delays execution with timeout.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 23:26

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 23:26

Reported

2024-06-28 23:29

Platform

win11-20240611-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.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\kat4E01.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 5004 set thread context of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.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\kat4E01.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat4E01.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 5004 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp
PID 5004 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp
PID 5004 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp
PID 5004 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp
PID 5004 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp
PID 5004 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp
PID 5004 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp
PID 5004 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp
PID 1028 wrote to memory of 4328 N/A C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp C:\Windows\SysWOW64\cmd.exe
PID 1028 wrote to memory of 4328 N/A C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp C:\Windows\SysWOW64\cmd.exe
PID 1028 wrote to memory of 4328 N/A C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp C:\Windows\SysWOW64\cmd.exe
PID 4328 wrote to memory of 3064 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4328 wrote to memory of 3064 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4328 wrote to memory of 3064 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe

"C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe"

C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp

C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp" & rd /s /q "C:\ProgramData\BAAFCAFCBKFH" & 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 8.8.8.8:53 145.83.221.88.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 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
US 52.111.227.13:443 tcp

Files

memory/5004-0-0x0000000002390000-0x0000000002391000-memory.dmp

memory/5004-2-0x0000000002A90000-0x0000000002BA0000-memory.dmp

memory/1028-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4E01.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1028-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5004-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/1028-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-27-0x000000002D130000-0x000000002D38F000-memory.dmp

memory/1028-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-36-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-44-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-45-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-46-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-62-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-63-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-74-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-75-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-76-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 23:26

Reported

2024-06-28 23:29

Platform

win10v2004-20240611-en

Max time kernel

133s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.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\kat2F2E.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat2F2E.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 2272 set thread context of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.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\kat2F2E.tmp N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat2F2E.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 2272 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp
PID 2272 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp
PID 2272 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp
PID 2272 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp
PID 2272 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp
PID 2272 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp
PID 2272 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp
PID 2272 wrote to memory of 3932 N/A C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp
PID 3932 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp C:\Windows\SysWOW64\cmd.exe
PID 3932 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp C:\Windows\SysWOW64\cmd.exe
PID 3932 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp C:\Windows\SysWOW64\cmd.exe
PID 5100 wrote to memory of 4040 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 5100 wrote to memory of 4040 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 5100 wrote to memory of 4040 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe

"C:\Users\Admin\AppData\Local\Temp\1822020673bc4cf95818ae0f6fdda2a41840377a4d034a6e2bf71be4e72ff2eb.exe"

C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp

C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp" & rd /s /q "C:\ProgramData\GDHIIDAFIDGC" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.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 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
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
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 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 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

Files

memory/2272-0-0x00000000007F0000-0x00000000007F1000-memory.dmp

memory/2272-2-0x0000000002AA0000-0x0000000002BB0000-memory.dmp

memory/3932-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2272-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/3932-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat2F2E.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3932-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-25-0x0000000020120000-0x000000002037F000-memory.dmp

memory/3932-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-59-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-60-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-71-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-72-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-73-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3932-74-0x0000000000400000-0x0000000000648000-memory.dmp