Malware Analysis Report

2024-11-16 13:50

Sample ID 240628-hnhsksyhjp
Target d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a
SHA256 d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a
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

d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a

Threat Level: Known bad

The file d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a 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 06:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 06:52

Reported

2024-06-28 06:55

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.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\kat58AF.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 4420 set thread context of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.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\kat58AF.tmp N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4420 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp
PID 4420 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp
PID 4420 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp
PID 4420 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp
PID 4420 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp
PID 4420 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp
PID 4420 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp
PID 4420 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe

"C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe"

C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp

C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.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 41.249.124.192.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
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
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 21.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net 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 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 253.15.104.51.in-addr.arpa udp

Files

memory/4420-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

memory/4420-2-0x0000000002A00000-0x0000000002B10000-memory.dmp

memory/384-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/384-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4420-10-0x0000000000400000-0x000000000058E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat58AF.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/384-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/384-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/384-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/384-25-0x00000000227A0000-0x00000000229FF000-memory.dmp

memory/384-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/384-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 06:52

Reported

2024-06-28 06:55

Platform

win11-20240419-en

Max time kernel

90s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.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\kat4B22.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 4868 set thread context of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.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\kat4B22.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4868 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp
PID 4868 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp
PID 4868 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp
PID 4868 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp
PID 4868 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp
PID 4868 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp
PID 4868 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp
PID 4868 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe

"C:\Users\Admin\AppData\Local\Temp\d1161aaa9500cb34259f5869cdd4236ed971ee344e3695cc5b7925ea293e9e8a.exe"

C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp

C:\Users\Admin\AppData\Local\Temp\kat4B22.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 195.201.251.214:9000 tcp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.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

Files

memory/4868-0-0x0000000002530000-0x0000000002531000-memory.dmp

memory/4868-2-0x00000000040F0000-0x0000000004200000-memory.dmp

memory/2452-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2452-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2452-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4B22.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4868-10-0x0000000000400000-0x000000000058E000-memory.dmp

memory/2452-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2452-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2452-27-0x000000002D120000-0x000000002D37F000-memory.dmp

memory/2452-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2452-43-0x0000000000400000-0x0000000000648000-memory.dmp