Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-pcwzdsgg83
Target ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416
SHA256 ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416
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

ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416

Threat Level: Known bad

The file ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416 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 user/profile data of web browsers

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 12:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 12:11

Reported

2024-06-07 12:18

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.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

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\kat3E8F.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 2524 set thread context of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp

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\kat3E8F.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2524 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp
PID 2524 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp
PID 2524 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp
PID 2524 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp
PID 2524 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp
PID 2524 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp
PID 2524 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp
PID 2524 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe

"C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe"

C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp

C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 44.56.20.217.in-addr.arpa udp
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
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
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
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
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/2524-0-0x00000000022F0000-0x00000000022F1000-memory.dmp

memory/2524-2-0x0000000003CE0000-0x0000000003E43000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1108-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2524-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/1108-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1108-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1108-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1108-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1108-25-0x000000001B7C0000-0x000000001BA1F000-memory.dmp

memory/1108-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1108-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 12:11

Reported

2024-06-07 12:18

Platform

win11-20240426-en

Max time kernel

90s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.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

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\kat6B8B.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 2112 set thread context of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp

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\kat6B8B.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2112 wrote to memory of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp
PID 2112 wrote to memory of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp
PID 2112 wrote to memory of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp
PID 2112 wrote to memory of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp
PID 2112 wrote to memory of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp
PID 2112 wrote to memory of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp
PID 2112 wrote to memory of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp
PID 2112 wrote to memory of 3180 N/A C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe

"C:\Users\Admin\AppData\Local\Temp\ea26835b8efbb3c29604335aed30535a4d521d633e8d5d29d03f57da66fd5416.exe"

C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp

C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp

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 44.56.20.217.in-addr.arpa udp
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 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

Files

memory/2112-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/2112-1-0x00000000040E0000-0x0000000004243000-memory.dmp

memory/3180-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3180-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2112-9-0x0000000000400000-0x000000000067A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6B8B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3180-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3180-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3180-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3180-27-0x000000001DCB0000-0x000000001DF0F000-memory.dmp

memory/3180-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3180-43-0x0000000000400000-0x0000000000648000-memory.dmp