Malware Analysis Report

2024-11-30 15:52

Sample ID 220810-2tdwcsfhej
Target arkrillia.exe
SHA256 a132009149d0fb7b4ba7819bead8513632c20cb4a60714fc48c0a540b151023d
Tags
mercurialgrabber evasion stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a132009149d0fb7b4ba7819bead8513632c20cb4a60714fc48c0a540b151023d

Threat Level: Known bad

The file arkrillia.exe was found to be: Known bad.

Malicious Activity Summary

mercurialgrabber evasion stealer

Mercurialgrabber family

Mercurial Grabber Stealer

Looks for VirtualBox Guest Additions in registry

Looks for VMWare Tools registry key

Checks BIOS information in registry

Maps connected drives based on registry

Looks up external IP address via web service

Suspicious use of AdjustPrivilegeToken

Checks SCSI registry key(s)

Enumerates system info in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-10 22:52

Signatures

Mercurialgrabber family

mercurialgrabber

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-10 22:52

Reported

2022-08-10 22:52

Platform

win10v2004-20220721-en

Max time kernel

14s

Max time network

19s

Command Line

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

Signatures

Mercurial Grabber Stealer

stealer mercurialgrabber

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip4.seeip.org N/A N/A
N/A ip4.seeip.org N/A N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\arkrillia.exe N/A

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip4.seeip.org udp
US 23.128.64.141:443 ip4.seeip.org tcp
US 209.197.3.8:80 tcp

Files

memory/4556-130-0x00000000007A0000-0x00000000007D8000-memory.dmp

memory/4556-131-0x00007FFE88E10000-0x00007FFE898D1000-memory.dmp