Malware Analysis Report

2024-11-13 15:43

Sample ID 231226-wfchgsbhdp
Target 81f06f19f54142c5c5d2c7c80c3400b1
SHA256 87307f9cbe996ef6cfd171c70af3e84d556c9eaddbda28de135333d54b42422a
Tags
mercurialgrabber evasion stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

87307f9cbe996ef6cfd171c70af3e84d556c9eaddbda28de135333d54b42422a

Threat Level: Known bad

The file 81f06f19f54142c5c5d2c7c80c3400b1 was found to be: Known bad.

Malicious Activity Summary

mercurialgrabber evasion stealer

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

Looks up external IP address via web service

Maps connected drives based on registry

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Modifies system certificate store

Enumerates system info in registry

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-26 17:51

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-26 17:51

Reported

2023-12-28 07:47

Platform

win10v2004-20231222-en

Max time kernel

142s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe

"C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe"

C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe

C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 5.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 52.165.164.15:443 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 udp
N/A 88.221.134.18:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp

Files

memory/680-1-0x0000000074F60000-0x0000000075710000-memory.dmp

memory/680-2-0x0000000005080000-0x0000000005624000-memory.dmp

memory/680-3-0x0000000004B70000-0x0000000004C0C000-memory.dmp

memory/680-5-0x0000000002430000-0x000000000243A000-memory.dmp

memory/680-12-0x0000000000400000-0x0000000000500000-memory.dmp

memory/680-15-0x0000000000400000-0x0000000000500000-memory.dmp

memory/680-14-0x0000000000400000-0x0000000000500000-memory.dmp

memory/680-13-0x0000000074F60000-0x0000000075710000-memory.dmp

memory/680-11-0x0000000000400000-0x0000000000500000-memory.dmp

memory/680-4-0x00000000024D0000-0x00000000024E0000-memory.dmp

memory/680-0-0x00000000000E0000-0x0000000000132000-memory.dmp

memory/680-16-0x0000000000400000-0x0000000000500000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-26 17:51

Reported

2023-12-28 07:46

Platform

win7-20231129-en

Max time kernel

20s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe"

Signatures

Mercurial Grabber Stealer

stealer mercurialgrabber

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMWare, Inc.\VMWare Tools C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.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\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A

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 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\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2392 set thread context of 2992 N/A C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe

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\81f06f19f54142c5c5d2c7c80c3400b1.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\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe

"C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe"

C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe

C:\Users\Admin\AppData\Local\Temp\81f06f19f54142c5c5d2c7c80c3400b1.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 1840

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 apps.identrust.com udp
GB 96.17.179.205:80 apps.identrust.com tcp
US 8.8.8.8:53 www.microsoft.com udp
US 92.123.241.137:80 www.microsoft.com tcp
US 8.8.8.8:53 www.microsoft.com udp
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 162.159.128.233:443 discord.com tcp
US 162.159.128.233:443 discord.com tcp

Files

memory/2392-0-0x0000000001290000-0x00000000012E2000-memory.dmp

memory/2392-1-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2392-3-0x0000000000DE0000-0x0000000000E20000-memory.dmp

memory/2392-17-0x0000000000240000-0x0000000000340000-memory.dmp

memory/2392-22-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2992-24-0x0000000004E70000-0x0000000004EB0000-memory.dmp

memory/2992-23-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2992-21-0x0000000000400000-0x0000000000410000-memory.dmp

memory/2992-19-0x0000000000400000-0x0000000000410000-memory.dmp

memory/2992-15-0x0000000000400000-0x0000000000410000-memory.dmp

memory/2392-2-0x0000000000220000-0x000000000022A000-memory.dmp

memory/2992-27-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2992-38-0x0000000004E70000-0x0000000004EB0000-memory.dmp