Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-qn4daach33
Target a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1
SHA256 a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1
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

a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1

Threat Level: Known bad

The file a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1 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 13:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 13:25

Reported

2024-06-08 13:27

Platform

win10v2004-20240426-en

Max time kernel

76s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.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\kat691A.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 2468 set thread context of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.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\kat691A.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat691A.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat691A.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2468 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.tmp
PID 2468 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.tmp
PID 2468 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.tmp
PID 2468 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.tmp
PID 2468 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.tmp
PID 2468 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.tmp
PID 2468 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.tmp
PID 2468 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat691A.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe

"C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe"

C:\Users\Admin\AppData\Local\Temp\kat691A.tmp

C:\Users\Admin\AppData\Local\Temp\kat691A.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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 22.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.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
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 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp

Files

memory/2468-0-0x00000000007E0000-0x00000000007E1000-memory.dmp

memory/2468-2-0x00000000041A0000-0x0000000004303000-memory.dmp

memory/2956-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat691A.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2468-6-0x0000000000400000-0x00000000005EE000-memory.dmp

memory/2956-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2956-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2956-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2956-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2956-25-0x000000001DC50000-0x000000001DEAF000-memory.dmp

memory/2956-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2956-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 13:25

Reported

2024-06-08 13:27

Platform

win11-20240508-en

Max time kernel

90s

Max time network

93s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.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\kat63FA.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 1576 set thread context of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.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\kat63FA.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1576 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp
PID 1576 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp
PID 1576 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp
PID 1576 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp
PID 1576 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp
PID 1576 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp
PID 1576 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp
PID 1576 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe

"C:\Users\Admin\AppData\Local\Temp\a50db894e2a60991a9ee0f80a59a99ec78ad131e5d7b73169d48f09ff4d7bbb1.exe"

C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp

C:\Users\Admin\AppData\Local\Temp\kat63FA.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 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.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/1576-0-0x0000000002340000-0x0000000002341000-memory.dmp

memory/1576-1-0x00000000040D0000-0x0000000004233000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat63FA.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3628-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-7-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-10-0x0000000000400000-0x00000000005EE000-memory.dmp

memory/3628-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-18-0x000000001B8B0000-0x000000001BB0F000-memory.dmp

memory/3628-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-34-0x0000000000400000-0x0000000000648000-memory.dmp