Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-f48ylahd7s
Target ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b
SHA256 ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b
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

ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b

Threat Level: Known bad

The file ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b 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

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 05:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 05:26

Reported

2024-06-08 05:29

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.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\kat2981.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 2852 set thread context of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.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\kat2981.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat2981.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat2981.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2852 wrote to memory of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.tmp
PID 2852 wrote to memory of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.tmp
PID 2852 wrote to memory of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.tmp
PID 2852 wrote to memory of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.tmp
PID 2852 wrote to memory of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.tmp
PID 2852 wrote to memory of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.tmp
PID 2852 wrote to memory of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.tmp
PID 2852 wrote to memory of 4292 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat2981.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe

"C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe"

C:\Users\Admin\AppData\Local\Temp\kat2981.tmp

C:\Users\Admin\AppData\Local\Temp\kat2981.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 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.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
US 8.8.8.8:53 67.31.126.40.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 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
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/2852-0-0x00000000024E0000-0x00000000024E1000-memory.dmp

memory/2852-2-0x00000000040A0000-0x0000000004203000-memory.dmp

memory/4292-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4292-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2852-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4292-10-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat2981.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4292-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4292-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4292-16-0x000000001DCF0000-0x000000001DF4F000-memory.dmp

memory/4292-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4292-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 05:26

Reported

2024-06-08 05:29

Platform

win11-20240508-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.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\kat595B.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 4908 set thread context of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.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\kat595B.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat595B.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat595B.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4908 wrote to memory of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.tmp
PID 4908 wrote to memory of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.tmp
PID 4908 wrote to memory of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.tmp
PID 4908 wrote to memory of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.tmp
PID 4908 wrote to memory of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.tmp
PID 4908 wrote to memory of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.tmp
PID 4908 wrote to memory of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.tmp
PID 4908 wrote to memory of 1768 N/A C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe C:\Users\Admin\AppData\Local\Temp\kat595B.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe

"C:\Users\Admin\AppData\Local\Temp\ab777f3fb12d2c81d5454bafa6214aa997ecef4144b0651cc9a4a5dee88cb17b.exe"

C:\Users\Admin\AppData\Local\Temp\kat595B.tmp

C:\Users\Admin\AppData\Local\Temp\kat595B.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 8.8.8.8:53 172.210.232.199.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/4908-0-0x0000000000930000-0x0000000000931000-memory.dmp

memory/4908-1-0x0000000002B90000-0x0000000002CF3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat595B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1768-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1768-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4908-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/1768-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1768-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1768-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1768-18-0x000000001B850000-0x000000001BAAF000-memory.dmp

memory/1768-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1768-34-0x0000000000400000-0x0000000000648000-memory.dmp