Malware Analysis Report

2024-11-30 15:49

Sample ID 221008-bwzyhadhf3
Target Nitro Generator.exe
SHA256 f4fcee629d0cff0f3ef2293353bd65945f5d022872692084a2070a2be45b6955
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f4fcee629d0cff0f3ef2293353bd65945f5d022872692084a2070a2be45b6955

Threat Level: Known bad

The file Nitro Generator.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

Legitimate hosting services abused for malware hosting/C2

Maps connected drives based on registry

Program crash

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-10-08 01:30

Signatures

Mercurialgrabber family

mercurialgrabber

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-08 01:30

Reported

2022-10-08 01:33

Platform

win7-20220812-en

Max time kernel

42s

Max time network

45s

Command Line

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

Legitimate hosting services abused for malware hosting/C2

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\Nitro Generator.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\Nitro Generator.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\Nitro Generator.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\Nitro Generator.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe

"C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 864 -s 1216

Network

Country Destination Domain Proto
US 8.8.8.8:53 discord.com udp
US 162.159.138.232:443 discord.com tcp
US 162.159.138.232:443 discord.com tcp

Files

memory/864-54-0x0000000001310000-0x0000000001320000-memory.dmp

memory/2008-55-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-08 01:30

Reported

2022-10-08 01:34

Platform

win10v2004-20220812-en

Max time kernel

91s

Max time network

163s

Command Line

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

Legitimate hosting services abused for malware hosting/C2

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\Nitro Generator.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\Nitro Generator.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\Nitro Generator.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\Nitro Generator.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe

"C:\Users\Admin\AppData\Local\Temp\Nitro Generator.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 discord.com udp
US 162.159.128.233:443 discord.com tcp
US 162.159.128.233:443 discord.com tcp
IE 13.69.239.72:443 tcp

Files

memory/3948-132-0x0000000000250000-0x0000000000260000-memory.dmp

memory/3948-133-0x00007FFA06280000-0x00007FFA06D41000-memory.dmp

memory/3948-134-0x00007FFA06280000-0x00007FFA06D41000-memory.dmp