Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-wd1gjacf36
Target f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b
SHA256 f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b
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

f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b

Threat Level: Known bad

The file f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Vidar

Detect Vidar Stealer

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

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 17:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 17:49

Reported

2024-06-07 17:51

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.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
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\katF676.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 3424 set thread context of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.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\katF676.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katF676.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katF676.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3424 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.tmp
PID 3424 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.tmp
PID 3424 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.tmp
PID 3424 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.tmp
PID 3424 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.tmp
PID 3424 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.tmp
PID 3424 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.tmp
PID 3424 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\katF676.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe

"C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe"

C:\Users\Admin\AppData\Local\Temp\katF676.tmp

C:\Users\Admin\AppData\Local\Temp\katF676.tmp

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4364,i,5047420736443372512,9747851268033796534,262144 --variations-seed-version --mojo-platform-channel-handle=4316 /prefetch:8

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 41.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.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
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 219.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 66.112.168.52.in-addr.arpa udp

Files

memory/3424-0-0x0000000002520000-0x0000000002521000-memory.dmp

memory/3424-2-0x0000000002BE0000-0x0000000002D43000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katF676.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4868-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4868-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3424-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4868-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4868-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4868-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4868-26-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4868-28-0x0000000025FE0000-0x000000002623F000-memory.dmp

memory/4868-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4868-44-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 17:49

Reported

2024-06-07 17:51

Platform

win11-20240508-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.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
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\kat6300.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 3272 set thread context of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.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\kat6300.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6300.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6300.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3272 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.tmp
PID 3272 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.tmp
PID 3272 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.tmp
PID 3272 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.tmp
PID 3272 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.tmp
PID 3272 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.tmp
PID 3272 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.tmp
PID 3272 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe C:\Users\Admin\AppData\Local\Temp\kat6300.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe

"C:\Users\Admin\AppData\Local\Temp\f3500ce93e32a299240c82fd5d66d04e5bccd53f19ff6e425ca4880de5c9d46b.exe"

C:\Users\Admin\AppData\Local\Temp\kat6300.tmp

C:\Users\Admin\AppData\Local\Temp\kat6300.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 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.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/3272-0-0x0000000000940000-0x0000000000941000-memory.dmp

memory/3272-2-0x0000000004140000-0x00000000042A3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6300.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4484-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4484-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3272-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4484-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4484-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4484-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4484-26-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4484-28-0x0000000026170000-0x00000000263CF000-memory.dmp

memory/4484-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4484-44-0x0000000000400000-0x0000000000648000-memory.dmp