Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-q6qj5shb6z
Target d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77
SHA256 d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77
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

d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77

Threat Level: Known bad

The file d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

Stealc

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

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 13:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 13:52

Reported

2024-06-07 13:55

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.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\katED3E.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 3168 set thread context of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.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\katED3E.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katED3E.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katED3E.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3168 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.tmp
PID 3168 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.tmp
PID 3168 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.tmp
PID 3168 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.tmp
PID 3168 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.tmp
PID 3168 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.tmp
PID 3168 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.tmp
PID 3168 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\katED3E.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe

"C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe"

C:\Users\Admin\AppData\Local\Temp\katED3E.tmp

C:\Users\Admin\AppData\Local\Temp\katED3E.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=3852,i,1067197275908310731,12785105794523264014,262144 --variations-seed-version --mojo-platform-channel-handle=4236 /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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.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 24.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.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
US 8.8.8.8:53 13.86.106.20.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
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/3168-0-0x0000000000840000-0x0000000000841000-memory.dmp

memory/3168-1-0x0000000002A60000-0x0000000002BC3000-memory.dmp

memory/4992-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katED3E.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4992-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3168-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4992-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4992-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4992-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4992-25-0x000000001B7B0000-0x000000001BA0F000-memory.dmp

memory/4992-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4992-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 13:52

Reported

2024-06-07 13:55

Platform

win11-20240419-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.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\kat4EFB.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 5052 set thread context of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.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\kat4EFB.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5052 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp
PID 5052 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp
PID 5052 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp
PID 5052 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp
PID 5052 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp
PID 5052 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp
PID 5052 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp
PID 5052 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe

"C:\Users\Admin\AppData\Local\Temp\d3a35f07e8b8efcf76ae6df3c2417a81383199f1b3cb9a427110406b13770e77.exe"

C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp

C:\Users\Admin\AppData\Local\Temp\kat4EFB.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/5052-0-0x0000000002510000-0x0000000002511000-memory.dmp

memory/5052-2-0x0000000002C80000-0x0000000002DE3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4EFB.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4800-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4800-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4800-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5052-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4800-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4800-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4800-18-0x000000001B890000-0x000000001BAEF000-memory.dmp

memory/4800-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4800-34-0x0000000000400000-0x0000000000648000-memory.dmp