Malware Analysis Report

2024-09-11 16:29

Sample ID 240614-d1d8psxdpn
Target 86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416
SHA256 86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416
Tags
stealc vidar discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416

Threat Level: Known bad

The file 86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416 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

Checks computer location settings

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Delays execution with timeout.exe

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-14 03:28

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 03:28

Reported

2024-06-14 03:30

Platform

win10v2004-20240611-en

Max time kernel

125s

Max time network

132s

Command Line

"C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2596 set thread context of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp

Enumerates physical storage devices

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\katDB8B.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2596 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp
PID 2596 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp
PID 2596 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp
PID 2596 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp
PID 2596 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp
PID 2596 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp
PID 2596 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp
PID 2596 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp
PID 4472 wrote to memory of 1368 N/A C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp C:\Windows\SysWOW64\cmd.exe
PID 4472 wrote to memory of 1368 N/A C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp C:\Windows\SysWOW64\cmd.exe
PID 4472 wrote to memory of 1368 N/A C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp C:\Windows\SysWOW64\cmd.exe
PID 1368 wrote to memory of 4536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1368 wrote to memory of 4536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1368 wrote to memory of 4536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe

"C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe"

C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp

C:\Users\Admin\AppData\Local\Temp\katDB8B.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 --field-trial-handle=4132,i,3144109701624127473,12586215149656995128,262144 --variations-seed-version --mojo-platform-channel-handle=2536 /prefetch:8

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

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=3532,i,3144109701624127473,12586215149656995128,262144 --variations-seed-version --mojo-platform-channel-handle=3452 /prefetch:3

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp" & rd /s /q "C:\ProgramData\KECGDBFCBKFI" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 22.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
US 8.8.8.8:53 244.235.13.49.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
NL 52.111.243.29:443 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

memory/2596-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/2596-1-0x0000000002B50000-0x0000000002C60000-memory.dmp

memory/4472-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2596-9-0x0000000000400000-0x0000000000629000-memory.dmp

memory/4472-10-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katDB8B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4472-20-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-21-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-23-0x000000001B810000-0x000000001BA6F000-memory.dmp

memory/4472-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-32-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-41-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-57-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

MD5 d751713988987e9331980363e24189ce
SHA1 97d170e1550eee4afc0af065b78cda302a97674c
SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512 b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

memory/4472-64-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-75-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-76-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4472-77-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

MD5 20d4b8fa017a12a108c87f540836e250
SHA1 1ac617fac131262b6d3ce1f52f5907e31d5f6f00
SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
SHA512 507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 03:28

Reported

2024-06-14 03:30

Platform

win11-20240611-en

Max time kernel

146s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
N/A N/A N/A N/A
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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\kat4D26.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4736 set thread context of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp

Enumerates physical storage devices

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\kat4D26.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4736 wrote to memory of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp
PID 4736 wrote to memory of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp
PID 4736 wrote to memory of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp
PID 4736 wrote to memory of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp
PID 4736 wrote to memory of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp
PID 4736 wrote to memory of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp
PID 4736 wrote to memory of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp
PID 4736 wrote to memory of 4364 N/A C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp
PID 4364 wrote to memory of 4152 N/A C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp C:\Windows\SysWOW64\cmd.exe
PID 4364 wrote to memory of 4152 N/A C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp C:\Windows\SysWOW64\cmd.exe
PID 4364 wrote to memory of 4152 N/A C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp C:\Windows\SysWOW64\cmd.exe
PID 4152 wrote to memory of 648 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4152 wrote to memory of 648 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4152 wrote to memory of 648 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe

"C:\Users\Admin\AppData\Local\Temp\86e04aa7c1b0e77e6c1d8da16384b762e594b13e3394d534e57c2d5427a69416.exe"

C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp

C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp" & rd /s /q "C:\ProgramData\FIDHCFBAKFBG" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
US 8.8.8.8:53 24.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
DE 49.13.235.244:5432 49.13.235.244 tcp
US 52.111.227.13:443 tcp

Files

memory/4736-0-0x00000000026D0000-0x00000000026D1000-memory.dmp

memory/4736-1-0x0000000004190000-0x00000000042A0000-memory.dmp

memory/4364-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4736-10-0x0000000000400000-0x0000000000629000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4D26.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4364-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-25-0x0000000026050000-0x00000000262AF000-memory.dmp

memory/4364-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-59-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-60-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-71-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-72-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4364-73-0x0000000000400000-0x0000000000648000-memory.dmp