Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-mcyrwaag9y
Target da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b
SHA256 da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b
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

da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b

Threat Level: Known bad

The file da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b 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

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 10:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 10:19

Reported

2024-06-08 10:22

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.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\katE8D9.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 4632 set thread context of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.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\katE8D9.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4632 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp
PID 4632 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp
PID 4632 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp
PID 4632 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp
PID 4632 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp
PID 4632 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp
PID 4632 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp
PID 4632 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe

"C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe"

C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp

C:\Users\Admin\AppData\Local\Temp\katE8D9.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=3720 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
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 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
US 8.8.8.8:53 95.221.229.192.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
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 164.189.21.2.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 94.65.42.20.in-addr.arpa udp

Files

memory/4632-0-0x0000000002410000-0x0000000002411000-memory.dmp

memory/4632-1-0x00000000041D0000-0x0000000004333000-memory.dmp

memory/1388-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katE8D9.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1388-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4632-8-0x0000000000400000-0x000000000067A000-memory.dmp

memory/1388-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1388-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1388-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1388-16-0x000000001B710000-0x000000001B96F000-memory.dmp

memory/1388-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1388-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 10:19

Reported

2024-06-08 10:22

Platform

win11-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.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\kat6C27.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 236 set thread context of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.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\kat6C27.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 236 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp
PID 236 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp
PID 236 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp
PID 236 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp
PID 236 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp
PID 236 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp
PID 236 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp
PID 236 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe

"C:\Users\Admin\AppData\Local\Temp\da6e449d45b6f1ac5711acb60d89e6734c708085c83cb43a5d0269b98e335f6b.exe"

C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp

C:\Users\Admin\AppData\Local\Temp\kat6C27.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 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

Files

memory/236-0-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/236-2-0x0000000002C20000-0x0000000002D83000-memory.dmp

memory/1332-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1332-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1332-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/236-9-0x0000000000400000-0x000000000067A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6C27.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1332-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1332-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1332-18-0x0000000019420000-0x000000001967F000-memory.dmp

memory/1332-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1332-34-0x0000000000400000-0x0000000000648000-memory.dmp