Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-hrdb9saa3t
Target 2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc
SHA256 2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc
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

2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc

Threat Level: Known bad

The file 2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

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 use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 06:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 06:57

Reported

2024-06-08 07:00

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.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\kat4268.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 2140 set thread context of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.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\kat4268.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4268.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4268.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2140 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.tmp
PID 2140 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.tmp
PID 2140 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.tmp
PID 2140 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.tmp
PID 2140 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.tmp
PID 2140 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.tmp
PID 2140 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.tmp
PID 2140 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4268.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe

"C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe"

C:\Users\Admin\AppData\Local\Temp\kat4268.tmp

C:\Users\Admin\AppData\Local\Temp\kat4268.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
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 8.8.8.8:53 134.32.126.40.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
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 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 35.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp

Files

memory/2140-0-0x0000000000930000-0x0000000000931000-memory.dmp

memory/2140-1-0x0000000002C00000-0x0000000002D63000-memory.dmp

memory/772-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/772-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/772-9-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4268.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2140-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/772-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/772-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/772-16-0x000000001DC00000-0x000000001DE5F000-memory.dmp

memory/772-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/772-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 06:57

Reported

2024-06-08 07:00

Platform

win11-20240426-en

Max time kernel

89s

Max time network

100s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.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\kat4892.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 4996 set thread context of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.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\kat4892.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4892.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4892.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4996 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.tmp
PID 4996 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.tmp
PID 4996 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.tmp
PID 4996 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.tmp
PID 4996 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.tmp
PID 4996 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.tmp
PID 4996 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.tmp
PID 4996 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe C:\Users\Admin\AppData\Local\Temp\kat4892.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe

"C:\Users\Admin\AppData\Local\Temp\2498ef1ef4179cd1d60093eac3d4e048c98e752d78b7f67ac77c5a87c0780ffc.exe"

C:\Users\Admin\AppData\Local\Temp\kat4892.tmp

C:\Users\Admin\AppData\Local\Temp\kat4892.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
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
NL 52.111.243.31:443 tcp

Files

memory/4996-0-0x00000000025D0000-0x00000000025D1000-memory.dmp

memory/4996-1-0x0000000004100000-0x0000000004263000-memory.dmp

memory/3048-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4892.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3048-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3048-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4996-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3048-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3048-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3048-18-0x00000000193B0000-0x000000001960F000-memory.dmp

memory/3048-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3048-34-0x0000000000400000-0x0000000000648000-memory.dmp