Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-s7xe7aaf3t
Target be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db
SHA256 be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db
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

be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db

Threat Level: Known bad

The file be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db 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

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 15:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 15:46

Reported

2024-06-07 15:49

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.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\kat5C39.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 4612 set thread context of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.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\kat5C39.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4612 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp
PID 4612 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp
PID 4612 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp
PID 4612 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp
PID 4612 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp
PID 4612 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp
PID 4612 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp
PID 4612 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe

"C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe"

C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp

C:\Users\Admin\AppData\Local\Temp\kat5C39.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 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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
US 8.8.8.8:53 23.249.124.192.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
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
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 8.8.8.8:53 154.239.44.20.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 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 91.16.208.104.in-addr.arpa udp

Files

memory/4612-0-0x00000000022D0000-0x00000000022D1000-memory.dmp

memory/4612-2-0x00000000040D0000-0x0000000004233000-memory.dmp

memory/3208-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3208-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4612-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3208-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5C39.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3208-20-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3208-21-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3208-23-0x000000001DBF0000-0x000000001DE4F000-memory.dmp

memory/3208-38-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3208-39-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 15:46

Reported

2024-06-07 15:49

Platform

win11-20240508-en

Max time kernel

90s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.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\kat3E41.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 816 set thread context of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.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\kat3E41.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 816 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp
PID 816 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp
PID 816 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp
PID 816 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp
PID 816 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp
PID 816 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp
PID 816 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp
PID 816 wrote to memory of 5080 N/A C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe

"C:\Users\Admin\AppData\Local\Temp\be51efd555fd300c067317f9ebeafa7faf219076a000de6d7074ad0e3e95b8db.exe"

C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp

C:\Users\Admin\AppData\Local\Temp\kat3E41.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 8.8.8.8:53 145.83.221.88.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

Files

memory/816-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/816-2-0x0000000004120000-0x0000000004283000-memory.dmp

memory/5080-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3E41.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/5080-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/816-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/5080-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-28-0x000000001DC80000-0x000000001DEDF000-memory.dmp

memory/5080-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5080-43-0x0000000000400000-0x0000000000648000-memory.dmp