Malware Analysis Report

2024-11-16 13:48

Sample ID 240629-hn1y6awcql
Target 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6
SHA256 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6
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

3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6

Threat Level: Known bad

The file 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6 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 behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 06:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 06:53

Reported

2024-06-29 06:56

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

131s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.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\katFFDC.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 2568 set thread context of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2568 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp
PID 2568 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp
PID 2568 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp
PID 2568 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp
PID 2568 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp
PID 2568 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp
PID 2568 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp
PID 2568 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\katFFDC.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe

"C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe"

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

C:\Users\Admin\AppData\Local\Temp\katFFDC.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=4004,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=3804 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
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 8.8.8.8:53 214.251.201.195.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 6.173.189.20.in-addr.arpa udp

Files

memory/2568-0-0x00000000007D0000-0x00000000007D1000-memory.dmp

memory/2568-2-0x0000000004030000-0x0000000004140000-memory.dmp

memory/464-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/464-8-0x0000000000400000-0x0000000000648000-memory.dmp

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

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2568-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/464-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/464-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/464-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/464-25-0x00000000227A0000-0x00000000229FF000-memory.dmp

memory/464-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/464-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 06:53

Reported

2024-06-29 06:56

Platform

win11-20240611-en

Max time kernel

89s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.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\kat6503.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 2556 set thread context of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.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\kat6503.tmp N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat6503.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2556 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.tmp
PID 2556 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.tmp
PID 2556 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.tmp
PID 2556 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.tmp
PID 2556 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.tmp
PID 2556 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.tmp
PID 2556 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.tmp
PID 2556 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe C:\Users\Admin\AppData\Local\Temp\kat6503.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe

"C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe"

C:\Users\Admin\AppData\Local\Temp\kat6503.tmp

C:\Users\Admin\AppData\Local\Temp\kat6503.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 41.249.124.192.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp

Files

memory/2556-0-0x0000000002390000-0x0000000002391000-memory.dmp

memory/2556-1-0x0000000002B30000-0x0000000002C40000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6503.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4736-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4736-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2556-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4736-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4736-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4736-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4736-27-0x000000002D160000-0x000000002D3BF000-memory.dmp

memory/4736-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4736-36-0x0000000000400000-0x0000000000648000-memory.dmp