Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-cq6pjafe9x
Target 58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77
SHA256 58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77
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

58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77

Threat Level: Known bad

The file 58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77 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

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 02:17

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 02:17

Reported

2024-06-08 02:20

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.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\katD2FF.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 372 set thread context of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.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\katD2FF.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 372 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp
PID 372 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp
PID 372 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp
PID 372 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp
PID 372 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp
PID 372 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp
PID 372 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp
PID 372 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe

"C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe"

C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp

C:\Users\Admin\AppData\Local\Temp\katD2FF.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=3640,i,14648456027158448592,4956305794400220180,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.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
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 0.159.190.20.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 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

memory/372-0-0x0000000000850000-0x0000000000851000-memory.dmp

memory/372-2-0x0000000002B00000-0x0000000002C63000-memory.dmp

memory/2172-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katD2FF.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2172-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/372-6-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2172-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2172-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2172-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2172-16-0x000000001B730000-0x000000001B98F000-memory.dmp

memory/2172-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2172-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 02:17

Reported

2024-06-08 02:20

Platform

win11-20240426-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.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\kat5091.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 236 set thread context of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.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\kat5091.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5091.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5091.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 236 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.tmp
PID 236 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.tmp
PID 236 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.tmp
PID 236 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.tmp
PID 236 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.tmp
PID 236 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.tmp
PID 236 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.tmp
PID 236 wrote to memory of 3584 N/A C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe C:\Users\Admin\AppData\Local\Temp\kat5091.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe

"C:\Users\Admin\AppData\Local\Temp\58ffd3759b7a3f01a511a283319eab99c567abbe55b41f80a52520678566fe77.exe"

C:\Users\Admin\AppData\Local\Temp\kat5091.tmp

C:\Users\Admin\AppData\Local\Temp\kat5091.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 107.211.222.173.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/236-0-0x0000000000860000-0x0000000000861000-memory.dmp

memory/236-1-0x0000000004160000-0x00000000042C3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5091.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3584-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/236-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3584-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-27-0x0000000026070000-0x00000000262CF000-memory.dmp

memory/3584-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3584-43-0x0000000000400000-0x0000000000648000-memory.dmp