Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-v8s59sbe5x
Target d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44
SHA256 d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44
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

d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44

Threat Level: Known bad

The file d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44 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 use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 17:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 17:39

Reported

2024-06-07 17:42

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.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\kat4258.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 2812 set thread context of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.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\kat4258.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4258.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4258.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2812 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.tmp
PID 2812 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.tmp
PID 2812 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.tmp
PID 2812 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.tmp
PID 2812 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.tmp
PID 2812 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.tmp
PID 2812 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.tmp
PID 2812 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat4258.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe

"C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe"

C:\Users\Admin\AppData\Local\Temp\kat4258.tmp

C:\Users\Admin\AppData\Local\Temp\kat4258.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 8.8.8.8.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 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.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
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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 13.179.89.13.in-addr.arpa udp

Files

memory/2812-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

memory/2812-2-0x0000000002B10000-0x0000000002C73000-memory.dmp

memory/768-7-0x0000000000400000-0x0000000000648000-memory.dmp

memory/768-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/768-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2812-10-0x0000000000400000-0x000000000067A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4258.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/768-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/768-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/768-16-0x000000001DC30000-0x000000001DE8F000-memory.dmp

memory/768-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/768-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 17:39

Reported

2024-06-07 17:42

Platform

win11-20240419-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.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\kat3FB8.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 3440 set thread context of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.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\kat3FB8.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3440 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp
PID 3440 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp
PID 3440 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp
PID 3440 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp
PID 3440 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp
PID 3440 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp
PID 3440 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp
PID 3440 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe

"C:\Users\Admin\AppData\Local\Temp\d087d92ef2ffbb0d2c84a5b2332eb79d09a9bba14a7bb380c3c18054f05bce44.exe"

C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp

C:\Users\Admin\AppData\Local\Temp\kat3FB8.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
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/3440-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/3440-1-0x0000000002B90000-0x0000000002CF3000-memory.dmp

memory/2280-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2280-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3FB8.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2280-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3440-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2280-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2280-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2280-18-0x00000000193D0000-0x000000001962F000-memory.dmp

memory/2280-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2280-34-0x0000000000400000-0x0000000000648000-memory.dmp