Malware Analysis Report

2024-11-15 08:07

Sample ID 230522-3c619adh3s
Target stub.exe
SHA256 e1790e7dd80127ecb73f0a540f2ad8b4479bb97a0ecb7be807a67bc06fda94f2
Tags
mercurialgrabber evasion spyware 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

e1790e7dd80127ecb73f0a540f2ad8b4479bb97a0ecb7be807a67bc06fda94f2

Threat Level: Known bad

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

Malicious Activity Summary

mercurialgrabber evasion spyware stealer

Mercurialgrabber family

Mercurial Grabber Stealer

Looks for VirtualBox Guest Additions in registry

Looks for VMWare Tools registry key

Reads user/profile data of web browsers

Checks BIOS information in registry

Looks up external IP address via web service

Maps connected drives based on registry

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

Checks SCSI registry key(s)

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-05-22 23:23

Signatures

Mercurialgrabber family

mercurialgrabber

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-22 23:23

Reported

2023-05-22 23:23

Platform

win10-20230220-en

Max time kernel

16s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\stub.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\stub.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\stub.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\stub.exe N/A

Reads user/profile data of web browsers

spyware stealer

Legitimate hosting services abused for malware hosting/C2

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
N/A ip4.seeip.org N/A N/A
N/A ip-api.com 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\stub.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\stub.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\stub.exe N/A

Checks processor information in registry

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

Enumerates system info in registry

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

Suspicious use of AdjustPrivilegeToken

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

Processes

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

"C:\Users\Admin\AppData\Local\Temp\stub.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 8.8.8.8:53 141.64.128.23.in-addr.arpa udp
US 23.128.64.141:443 ip4.seeip.org tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 discord.com udp
US 162.159.135.232:443 discord.com tcp
US 162.159.135.232:443 discord.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 232.135.159.162.in-addr.arpa udp
NL 20.103.253.93:80 tcp

Files

memory/3712-116-0x0000000000160000-0x0000000000170000-memory.dmp

memory/3712-117-0x000000001AE10000-0x000000001AE20000-memory.dmp

memory/3712-118-0x000000001AE10000-0x000000001AE20000-memory.dmp