Malware Analysis Report

2024-11-16 13:45

Sample ID 240628-pjyrkasanl
Target ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80
SHA256 ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80
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

ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80

Threat Level: Known bad

The file ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

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 behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 12:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 12:22

Reported

2024-06-28 12:24

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.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\kat3B73.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 2124 set thread context of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.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\kat3B73.tmp N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2124 wrote to memory of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp
PID 2124 wrote to memory of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp
PID 2124 wrote to memory of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp
PID 2124 wrote to memory of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp
PID 2124 wrote to memory of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp
PID 2124 wrote to memory of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp
PID 2124 wrote to memory of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp
PID 2124 wrote to memory of 632 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe

"C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe"

C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp

C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 84.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
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
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/2124-0-0x00000000008F0000-0x00000000008F1000-memory.dmp

memory/2124-1-0x0000000002A50000-0x0000000002B60000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3B73.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/632-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2124-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/632-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/632-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/632-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/632-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/632-25-0x0000000022690000-0x00000000228EF000-memory.dmp

memory/632-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/632-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 12:22

Reported

2024-06-28 12:24

Platform

win11-20240611-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.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\kat39BD.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 5100 set thread context of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5100 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp
PID 5100 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp
PID 5100 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp
PID 5100 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp
PID 5100 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp
PID 5100 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp
PID 5100 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp
PID 5100 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe

"C:\Users\Admin\AppData\Local\Temp\ab8bb8fe0ac175e5c64ccc0d0aa390562a4b5782c19ed6699bfb7f9ff5610c80.exe"

C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp

C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
NL 149.154.167.99:443 t.me 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

Files

memory/5100-0-0x00000000024A0000-0x00000000024A1000-memory.dmp

memory/5100-2-0x0000000002B20000-0x0000000002C30000-memory.dmp

memory/3584-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat39BD.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3584-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5100-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/3584-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-26-0x00000000227D0000-0x0000000022A2F000-memory.dmp

memory/3584-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-34-0x0000000000400000-0x0000000000648000-memory.dmp