Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-k7m8hsbe88
Target d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009
SHA256 d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009
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

d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009

Threat Level: Known bad

The file d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

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 behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 09:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 09:14

Reported

2024-06-08 09:17

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.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\kat4239.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 2240 set thread context of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.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\kat4239.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4239.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4239.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2240 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.tmp
PID 2240 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.tmp
PID 2240 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.tmp
PID 2240 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.tmp
PID 2240 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.tmp
PID 2240 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.tmp
PID 2240 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.tmp
PID 2240 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat4239.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe

"C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe"

C:\Users\Admin\AppData\Local\Temp\kat4239.tmp

C:\Users\Admin\AppData\Local\Temp\kat4239.tmp

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
US 8.8.8.8:53 183.142.211.20.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 17.160.190.20.in-addr.arpa udp
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
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp

Files

memory/2240-0-0x0000000000740000-0x0000000000741000-memory.dmp

memory/2240-1-0x0000000002AA0000-0x0000000002C03000-memory.dmp

memory/3968-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4239.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2240-6-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3968-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3968-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3968-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3968-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3968-16-0x000000001DC30000-0x000000001DE8F000-memory.dmp

memory/3968-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3968-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 09:14

Reported

2024-06-08 09:17

Platform

win11-20240508-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.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\kat6C56.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 1296 set thread context of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.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\kat6C56.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1296 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp
PID 1296 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp
PID 1296 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp
PID 1296 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp
PID 1296 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp
PID 1296 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp
PID 1296 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp
PID 1296 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe

"C:\Users\Admin\AppData\Local\Temp\d9d15087b5a4839fdb1f4955f37cc16259784e0295784116e1e50d7d0115f009.exe"

C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp

C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp

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 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.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
US 52.111.229.19:443 tcp

Files

memory/1296-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/1296-1-0x0000000004140000-0x00000000042A3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6C56.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2584-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2584-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1296-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2584-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2584-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2584-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2584-27-0x000000001DCB0000-0x000000001DF0F000-memory.dmp

memory/2584-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2584-43-0x0000000000400000-0x0000000000648000-memory.dmp