Malware Analysis Report

2024-11-16 13:48

Sample ID 240628-xrtrkssdnj
Target 1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a
SHA256 1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a
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

1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a

Threat Level: Known bad

The file 1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Detect Vidar Stealer

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

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 19:05

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 19:05

Reported

2024-06-28 19:08

Platform

win10v2004-20240611-en

Max time kernel

136s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.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\kat395B.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 4728 set thread context of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.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\kat395B.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat395B.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4728 wrote to memory of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.tmp
PID 4728 wrote to memory of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.tmp
PID 4728 wrote to memory of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.tmp
PID 4728 wrote to memory of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.tmp
PID 4728 wrote to memory of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.tmp
PID 4728 wrote to memory of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.tmp
PID 4728 wrote to memory of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.tmp
PID 4728 wrote to memory of 4420 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat395B.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe

"C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe"

C:\Users\Admin\AppData\Local\Temp\kat395B.tmp

C:\Users\Admin\AppData\Local\Temp\kat395B.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=4432,i,6522675234395427298,2952738987384583032,262144 --variations-seed-version --mojo-platform-channel-handle=1308 /prefetch:8

Network

Country Destination Domain Proto
US 13.107.42.16:443 tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 76.234.34.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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
US 8.8.8.8:53 99.167.154.149.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
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 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 199.232.210.172:80 tcp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp

Files

memory/4728-0-0x00000000023B0000-0x00000000023B1000-memory.dmp

memory/4728-2-0x0000000003FD0000-0x00000000040E0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat395B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4420-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4420-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4728-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4420-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4420-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4420-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4420-25-0x00000000226E0000-0x000000002293F000-memory.dmp

memory/4420-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4420-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 19:05

Reported

2024-06-28 19:08

Platform

win11-20240508-en

Max time kernel

146s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.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\kat67D2.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 1688 set thread context of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.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\kat67D2.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1688 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp
PID 1688 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp
PID 1688 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp
PID 1688 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp
PID 1688 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp
PID 1688 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp
PID 1688 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp
PID 1688 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe

"C:\Users\Admin\AppData\Local\Temp\1c60d736e4388eff786845a23c707a30e07f73b4c28a724d00f48749546c190a.exe"

C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp

C:\Users\Admin\AppData\Local\Temp\kat67D2.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 23.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.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/1688-0-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/1688-2-0x0000000004260000-0x0000000004370000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat67D2.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4324-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4324-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4324-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1688-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4324-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4324-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4324-25-0x000000002D130000-0x000000002D38F000-memory.dmp

memory/4324-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4324-41-0x0000000000400000-0x0000000000648000-memory.dmp