Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-nkb4hsca89
Target 34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3
SHA256 34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3
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

34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3

Threat Level: Known bad

The file 34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3 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 11:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 11:26

Reported

2024-06-08 11:29

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.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\kat4381.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 2660 set thread context of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.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\kat4381.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4381.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4381.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2660 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.tmp
PID 2660 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.tmp
PID 2660 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.tmp
PID 2660 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.tmp
PID 2660 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.tmp
PID 2660 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.tmp
PID 2660 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.tmp
PID 2660 wrote to memory of 1812 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat4381.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe

"C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe"

C:\Users\Admin\AppData\Local\Temp\kat4381.tmp

C:\Users\Admin\AppData\Local\Temp\kat4381.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa 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 75.159.190.20.in-addr.arpa udp
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
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
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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/2660-0-0x0000000002480000-0x0000000002481000-memory.dmp

memory/2660-2-0x0000000004150000-0x00000000042B3000-memory.dmp

memory/1812-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1812-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2660-9-0x0000000000400000-0x00000000005EE000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4381.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1812-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1812-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1812-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1812-16-0x000000001DC60000-0x000000001DEBF000-memory.dmp

memory/1812-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1812-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 11:26

Reported

2024-06-08 11:29

Platform

win11-20240426-en

Max time kernel

90s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.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\kat5D24.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 1376 set thread context of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.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\kat5D24.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1376 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp
PID 1376 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp
PID 1376 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp
PID 1376 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp
PID 1376 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp
PID 1376 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp
PID 1376 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp
PID 1376 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe

"C:\Users\Admin\AppData\Local\Temp\34d4fc5b280c270fef61820532eba05c86d66578f9e5e96a4f371ae0a3ce46a3.exe"

C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp

C:\Users\Admin\AppData\Local\Temp\kat5D24.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 81.144.22.2.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
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
DE 116.202.190.18:5432 116.202.190.18 tcp

Files

memory/1376-0-0x0000000002550000-0x0000000002551000-memory.dmp

memory/1376-2-0x0000000004020000-0x0000000004183000-memory.dmp

memory/3680-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3680-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1376-9-0x0000000000400000-0x00000000005EE000-memory.dmp

memory/3680-10-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5D24.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3680-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3680-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3680-28-0x00000000260F0000-0x000000002634F000-memory.dmp

memory/3680-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3680-43-0x0000000000400000-0x0000000000648000-memory.dmp