Malware Analysis Report

2024-11-15 06:41

Sample ID 240603-kpyarsaf96
Target 0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5
SHA256 0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5

Threat Level: Known bad

The file 0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

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

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 08:47

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 08:47

Reported

2024-06-03 08:49

Platform

win11-20240419-en

Max time kernel

90s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.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\kat881C.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 3468 set thread context of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.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\kat881C.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat881C.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat881C.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3468 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.tmp
PID 3468 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.tmp
PID 3468 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.tmp
PID 3468 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.tmp
PID 3468 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.tmp
PID 3468 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.tmp
PID 3468 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.tmp
PID 3468 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat881C.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe

"C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe"

C:\Users\Admin\AppData\Local\Temp\kat881C.tmp

C:\Users\Admin\AppData\Local\Temp\kat881C.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 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 245.158.13.49.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp

Files

memory/3468-0-0x0000000002320000-0x0000000002321000-memory.dmp

memory/3468-2-0x0000000002AE0000-0x0000000002C2C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat881C.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2152-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2152-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2152-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/3468-9-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/2152-15-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2152-16-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2152-19-0x0000000019360000-0x00000000195BF000-memory.dmp

memory/2152-33-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2152-34-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 08:47

Reported

2024-06-03 08:49

Platform

win10v2004-20240508-en

Max time kernel

131s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.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\kat5B7E.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 4748 set thread context of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.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\kat5B7E.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4748 wrote to memory of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp
PID 4748 wrote to memory of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp
PID 4748 wrote to memory of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp
PID 4748 wrote to memory of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp
PID 4748 wrote to memory of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp
PID 4748 wrote to memory of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp
PID 4748 wrote to memory of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp
PID 4748 wrote to memory of 2188 N/A C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe

"C:\Users\Admin\AppData\Local\Temp\0bbc58a493b07441cbfd6543b8da122582279855a340bb9d8556c97ce84a4bd5.exe"

C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp

C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 245.158.13.49.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 58.55.71.13.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 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/4748-0-0x0000000000990000-0x0000000000991000-memory.dmp

memory/4748-1-0x0000000002940000-0x0000000002A8C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5B7E.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2188-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2188-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4748-9-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/2188-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2188-13-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2188-14-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2188-16-0x00000000192F0000-0x000000001954F000-memory.dmp

memory/2188-31-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2188-32-0x0000000000400000-0x0000000000649000-memory.dmp