Malware Analysis Report

2024-11-16 13:51

Sample ID 240628-klkv9stapr
Target 3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6
SHA256 3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6
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

3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6

Threat Level: Known bad

The file 3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

Downloads MZ/PE file

Reads user/profile data of web browsers

Executes dropped EXE

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 08:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 08:41

Reported

2024-06-28 08:43

Platform

win10v2004-20240508-en

Max time kernel

95s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.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\kat5880.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 3064 set thread context of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.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\kat5880.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat5880.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3064 wrote to memory of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.tmp
PID 3064 wrote to memory of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.tmp
PID 3064 wrote to memory of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.tmp
PID 3064 wrote to memory of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.tmp
PID 3064 wrote to memory of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.tmp
PID 3064 wrote to memory of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.tmp
PID 3064 wrote to memory of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.tmp
PID 3064 wrote to memory of 4828 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat5880.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe

"C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe"

C:\Users\Admin\AppData\Local\Temp\kat5880.tmp

C:\Users\Admin\AppData\Local\Temp\kat5880.tmp

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 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.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
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/3064-0-0x0000000000760000-0x0000000000761000-memory.dmp

memory/3064-1-0x00000000040E0000-0x00000000041F0000-memory.dmp

memory/4828-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4828-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4828-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3064-10-0x0000000000400000-0x000000000058E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5880.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4828-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4828-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4828-25-0x0000000022720000-0x000000002297F000-memory.dmp

memory/4828-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4828-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 08:41

Reported

2024-06-28 08:43

Platform

win11-20240508-en

Max time kernel

94s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.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\kat447B.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 4512 set thread context of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.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\kat447B.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat447B.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4512 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.tmp
PID 4512 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.tmp
PID 4512 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.tmp
PID 4512 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.tmp
PID 4512 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.tmp
PID 4512 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.tmp
PID 4512 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.tmp
PID 4512 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe C:\Users\Admin\AppData\Local\Temp\kat447B.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe

"C:\Users\Admin\AppData\Local\Temp\3995e14706de38e3140bcb84384a597f85dbcea1fbaf90c4ff5fef53da7f70a6.exe"

C:\Users\Admin\AppData\Local\Temp\kat447B.tmp

C:\Users\Admin\AppData\Local\Temp\kat447B.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 195.201.251.214 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
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
US 52.111.229.43:443 tcp

Files

memory/4512-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

memory/4512-1-0x0000000004050000-0x0000000004160000-memory.dmp

memory/3704-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4512-9-0x0000000000400000-0x000000000058E000-memory.dmp

memory/3704-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat447B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3704-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3704-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3704-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3704-27-0x000000002F730000-0x000000002F98F000-memory.dmp

memory/3704-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3704-43-0x0000000000400000-0x0000000000648000-memory.dmp