Malware Analysis Report

2024-11-16 13:46

Sample ID 240628-n65mysybqe
Target 6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876
SHA256 6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876
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

6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876

Threat Level: Known bad

The file 6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Vidar

Detect Vidar Stealer

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

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 12:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 12:01

Reported

2024-06-28 12:04

Platform

win10v2004-20240226-en

Max time kernel

113s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.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
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\kat1AE6.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 2148 set thread context of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.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\kat1AE6.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2148 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp
PID 2148 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp
PID 2148 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp
PID 2148 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp
PID 2148 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp
PID 2148 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp
PID 2148 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp
PID 2148 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe

"C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe"

C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp

C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3224 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
GB 216.58.201.106:443 tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 95.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 214.251.201.195.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/2148-0-0x0000000000400000-0x0000000000635000-memory.dmp

memory/2148-1-0x0000000000830000-0x0000000000831000-memory.dmp

memory/2148-2-0x00000000042B0000-0x00000000043C0000-memory.dmp

memory/4012-5-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat1AE6.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2148-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4012-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-11-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-12-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-27-0x0000000024CB0000-0x0000000024F0F000-memory.dmp

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

memory/4012-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4012-44-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 12:01

Reported

2024-06-28 12:04

Platform

win11-20240611-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.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\kat43C0.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 3756 set thread context of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.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\kat43C0.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3756 wrote to memory of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp
PID 3756 wrote to memory of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp
PID 3756 wrote to memory of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp
PID 3756 wrote to memory of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp
PID 3756 wrote to memory of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp
PID 3756 wrote to memory of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp
PID 3756 wrote to memory of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp
PID 3756 wrote to memory of 4856 N/A C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe

"C:\Users\Admin\AppData\Local\Temp\6d43de56b16f7efd2a0707e8cf851a9e51913a5be5ac849791edcb44a5c33876.exe"

C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp

C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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/3756-0-0x0000000002390000-0x0000000002391000-memory.dmp

memory/3756-2-0x0000000002B00000-0x0000000002C10000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat43C0.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3756-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4856-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4856-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4856-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4856-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4856-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4856-25-0x00000000201A0000-0x00000000203FF000-memory.dmp

memory/4856-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4856-34-0x0000000000400000-0x0000000000648000-memory.dmp