Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-bglsbseg8y
Target 05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c
SHA256 05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c
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

05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c

Threat Level: Known bad

The file 05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

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

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

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

2024-06-08 01:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 01:06

Reported

2024-06-08 01:09

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.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
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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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6FF0.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 4152 set thread context of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.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\kat6FF0.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 4152 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp
PID 4152 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp
PID 4152 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp
PID 4152 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp
PID 4152 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp
PID 4152 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp
PID 4152 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp
PID 4152 wrote to memory of 2944 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp
PID 2944 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp C:\Windows\SysWOW64\cmd.exe
PID 2944 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp C:\Windows\SysWOW64\cmd.exe
PID 2944 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp C:\Windows\SysWOW64\cmd.exe
PID 2928 wrote to memory of 3628 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2928 wrote to memory of 3628 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2928 wrote to memory of 3628 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe

"C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe"

C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp

C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp" & rd /s /q "C:\ProgramData\KECBKKEBKEBF" & 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 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 58.55.71.13.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 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/4152-0-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/4152-2-0x0000000004070000-0x00000000041D3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6FF0.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2944-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4152-7-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2944-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-16-0x000000001B720000-0x000000001B97F000-memory.dmp

memory/2944-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-32-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-48-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-49-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-60-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-61-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2944-62-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 01:06

Reported

2024-06-08 01:09

Platform

win11-20240419-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.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
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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\kat5350.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 784 set thread context of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.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\kat5350.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 784 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.tmp
PID 784 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.tmp
PID 784 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.tmp
PID 784 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.tmp
PID 784 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.tmp
PID 784 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.tmp
PID 784 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.tmp
PID 784 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe C:\Users\Admin\AppData\Local\Temp\kat5350.tmp
PID 4012 wrote to memory of 2336 N/A C:\Users\Admin\AppData\Local\Temp\kat5350.tmp C:\Windows\SysWOW64\cmd.exe
PID 4012 wrote to memory of 2336 N/A C:\Users\Admin\AppData\Local\Temp\kat5350.tmp C:\Windows\SysWOW64\cmd.exe
PID 4012 wrote to memory of 2336 N/A C:\Users\Admin\AppData\Local\Temp\kat5350.tmp C:\Windows\SysWOW64\cmd.exe
PID 2336 wrote to memory of 1688 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2336 wrote to memory of 1688 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2336 wrote to memory of 1688 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe

"C:\Users\Admin\AppData\Local\Temp\05f0d61f4b25992ee41b813bf29b8b952991e9e57f55a9713d1b933805d4ab8c.exe"

C:\Users\Admin\AppData\Local\Temp\kat5350.tmp

C:\Users\Admin\AppData\Local\Temp\kat5350.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5350.tmp" & rd /s /q "C:\ProgramData\JJDHIDBFBFHI" & 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 99.167.154.149.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp

Files

memory/784-0-0x00000000023C0000-0x00000000023C1000-memory.dmp

memory/784-2-0x0000000002B00000-0x0000000002C63000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5350.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4012-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/784-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4012-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-18-0x000000001B820000-0x000000001BA7F000-memory.dmp

memory/4012-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-50-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-51-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-62-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-63-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-66-0x0000000000400000-0x0000000000648000-memory.dmp