Malware Analysis Report

2024-11-16 13:44

Sample ID 240607-sdb76aab2x
Target dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a
SHA256 dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a
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

dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a

Threat Level: Known bad

The file dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Detect Vidar Stealer

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

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 15:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 15:00

Reported

2024-06-07 15:02

Platform

win10v2004-20240426-en

Max time kernel

93s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.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\kat2FCA.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 4268 set thread context of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.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\kat2FCA.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4268 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp
PID 4268 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp
PID 4268 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp
PID 4268 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp
PID 4268 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp
PID 4268 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp
PID 4268 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp
PID 4268 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe

"C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe"

C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp

C:\Users\Admin\AppData\Local\Temp\kat2FCA.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 28.118.140.52.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
US 8.8.8.8:53 73.31.126.40.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
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
US 8.8.8.8:53 133.211.185.52.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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/4268-0-0x0000000000840000-0x0000000000841000-memory.dmp

memory/4268-2-0x0000000003D30000-0x0000000003E93000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat2FCA.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4668-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4668-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4668-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4268-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4668-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4668-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4668-16-0x000000001B7B0000-0x000000001BA0F000-memory.dmp

memory/4668-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4668-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 15:00

Reported

2024-06-07 15:02

Platform

win11-20240426-en

Max time kernel

90s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.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\kat5D52.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 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.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\kat5D52.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1376 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp
PID 1376 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp
PID 1376 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp
PID 1376 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp
PID 1376 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp
PID 1376 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp
PID 1376 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp
PID 1376 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe

"C:\Users\Admin\AppData\Local\Temp\dc2970e2c39ac27cfe600381e3868cc6b8192b43de675ecc9c3c73c185a9104a.exe"

C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp

C:\Users\Admin\AppData\Local\Temp\kat5D52.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 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 23.249.124.192.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/1376-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/1376-2-0x00000000040C0000-0x0000000004223000-memory.dmp

memory/3636-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1376-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3636-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5D52.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3636-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-27-0x00000000260B0000-0x000000002630F000-memory.dmp

memory/3636-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-43-0x0000000000400000-0x0000000000648000-memory.dmp