Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-15yt8sed42
Target 2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d
SHA256 2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d
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

2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d

Threat Level: Known bad

The file 2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Vidar

Stealc

Downloads MZ/PE file

Executes dropped EXE

Reads data files stored by FTP clients

Reads user/profile data of web browsers

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 behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

Delays execution with timeout.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 22:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 22:14

Reported

2024-06-07 22:17

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.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\kat5582.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5582.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 800 set thread context of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.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\kat5582.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 800 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.tmp
PID 800 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.tmp
PID 800 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.tmp
PID 800 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.tmp
PID 800 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.tmp
PID 800 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.tmp
PID 800 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.tmp
PID 800 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat5582.tmp
PID 3864 wrote to memory of 1092 N/A C:\Users\Admin\AppData\Local\Temp\kat5582.tmp C:\Windows\SysWOW64\cmd.exe
PID 3864 wrote to memory of 1092 N/A C:\Users\Admin\AppData\Local\Temp\kat5582.tmp C:\Windows\SysWOW64\cmd.exe
PID 3864 wrote to memory of 1092 N/A C:\Users\Admin\AppData\Local\Temp\kat5582.tmp C:\Windows\SysWOW64\cmd.exe
PID 1092 wrote to memory of 3068 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1092 wrote to memory of 3068 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1092 wrote to memory of 3068 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe

"C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe"

C:\Users\Admin\AppData\Local\Temp\kat5582.tmp

C:\Users\Admin\AppData\Local\Temp\kat5582.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5582.tmp" & rd /s /q "C:\ProgramData\HJDHCFCBGIDG" & 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 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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 23.249.124.192.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
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.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 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 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/800-0-0x0000000000760000-0x0000000000761000-memory.dmp

memory/800-2-0x00000000041B0000-0x0000000004313000-memory.dmp

memory/3864-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-10-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5582.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/800-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3864-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-25-0x000000001DC90000-0x000000001DEEF000-memory.dmp

memory/3864-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-41-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-57-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-58-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-69-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-70-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3864-71-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 22:14

Reported

2024-06-07 22:17

Platform

win11-20240426-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.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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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\kat64D4.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 4212 set thread context of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.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\kat64D4.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 4212 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp
PID 4212 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp
PID 4212 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp
PID 4212 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp
PID 4212 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp
PID 4212 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp
PID 4212 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp
PID 4212 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp
PID 3244 wrote to memory of 704 N/A C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp C:\Windows\SysWOW64\cmd.exe
PID 3244 wrote to memory of 704 N/A C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp C:\Windows\SysWOW64\cmd.exe
PID 3244 wrote to memory of 704 N/A C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp C:\Windows\SysWOW64\cmd.exe
PID 704 wrote to memory of 3288 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 704 wrote to memory of 3288 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 704 wrote to memory of 3288 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe

"C:\Users\Admin\AppData\Local\Temp\2b13d88349d426f72cb04c72247bfa48e25c6deb206d6e4cea169510c0bf508d.exe"

C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp

C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp" & rd /s /q "C:\ProgramData\DHIECGCAEBFI" & 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 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 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 52.111.229.43:443 tcp

Files

memory/4212-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/4212-1-0x00000000040E0000-0x0000000004243000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3244-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4212-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3244-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-19-0x000000001B800000-0x000000001BA5F000-memory.dmp

memory/3244-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-50-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-51-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-62-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-63-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3244-66-0x0000000000400000-0x0000000000648000-memory.dmp