Malware Analysis Report

2025-01-18 18:36

Sample ID 220128-vzydmahed8
Target 674ad8128d17418474a2b4615da81c935d4d7f9c
SHA256 ae9600cb391f447933e29069ca3000bb61a005d58fe14eb84fd830403221e48f
Tags
sodinokibi persistence
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

ae9600cb391f447933e29069ca3000bb61a005d58fe14eb84fd830403221e48f

Threat Level: Known bad

The file 674ad8128d17418474a2b4615da81c935d4d7f9c was found to be: Known bad.

Malicious Activity Summary

sodinokibi persistence

Suspicious use of NtCreateProcessExOtherParentProcess

Sodinokibi family

Sodinokibi/Revil sample

Sets service image path in registry

Program crash

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-01-28 17:26

Signatures

Sodinokibi family

sodinokibi

Sodinokibi/Revil sample

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

Analysis: behavioral1

Detonation Overview

Submitted

2022-01-28 17:26

Reported

2022-01-28 17:29

Platform

win10v2004-en-20220112

Max time kernel

99s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\674ad8128d17418474a2b4615da81c935d4d7f9c.exe"

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess

Description Indicator Process Target
PID 1388 created 2512 N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\674ad8128d17418474a2b4615da81c935d4d7f9c.exe

Sets service image path in registry

persistence

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\SysWOW64\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\SysWOW64\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\SysWOW64\WerFault.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\SysWOW64\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\SysWOW64\WerFault.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs C:\Windows\System32\WaaSMedicAgent.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe N/A
N/A N/A C:\Windows\SysWOW64\WerFault.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\674ad8128d17418474a2b4615da81c935d4d7f9c.exe

"C:\Users\Admin\AppData\Local\Temp\674ad8128d17418474a2b4615da81c935d4d7f9c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2512 -ip 2512

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 224

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 224

C:\Windows\System32\WaaSMedicAgent.exe

C:\Windows\System32\WaaSMedicAgent.exe 7f173d994e60df3799fea632dc5e14a7 P1v5+yBnH02ab07c2wS1tw.0.1.0.0.0

Network

Country Destination Domain Proto
IE 40.126.31.4:443 tcp
IE 40.126.31.4:443 tcp
US 8.8.8.8:53 settings-win.data.microsoft.com udp
NL 51.124.78.146:443 settings-win.data.microsoft.com tcp
US 8.8.8.8:53 settings-win.data.microsoft.com udp
NL 51.124.78.146:443 settings-win.data.microsoft.com tcp
NL 51.124.78.146:443 settings-win.data.microsoft.com tcp
NL 51.124.78.146:443 settings-win.data.microsoft.com tcp
NL 51.124.78.146:443 settings-win.data.microsoft.com tcp
NL 51.124.78.146:443 settings-win.data.microsoft.com tcp
US 8.8.8.8:53 settings-win.data.microsoft.com udp
US 52.167.17.97:443 settings-win.data.microsoft.com tcp

Files

N/A