Malware Analysis Report

2024-10-16 03:30

Sample ID 220201-tpjl2shcfj
Target 156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.sample
SHA256 156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673
Tags
darkside ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673

Threat Level: Known bad

The file 156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.sample was found to be: Known bad.

Malicious Activity Summary

darkside ransomware

DarkSide

Drops file in System32 directory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Modifies registry class

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-02-01 16:13

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-02-01 16:13

Reported

2022-02-01 16:16

Platform

win10-en-20211208

Max time kernel

89s

Max time network

97s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.dll,#1

Signatures

DarkSide

ransomware darkside

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat C:\Windows\SysWOW64\rundll32.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 69adfe26f512e6db08fd673723162e6bcf4fba8ad495ee66fa78b2d7124932d8 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 48f62b81a1ab5f7f23c82d53be008ee626f98fdff8729d564376171baf61e39d C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Control Panel\International C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft C:\Windows\SysWOW64\rundll32.exe N/A
Key deleted \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 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 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 36451d210411dd0e1c0e3e637fc52203aaa56b801411b1df17217a13d9e128c6 C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 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 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c0044006f00630075006d0065006e0074007300200061006e0064002000530065007400740069006e00670073005c00410064006d0069006e005c004c006f00630061006c002000530065007400740069006e00670073005c005000610063006b0061006700650073005c004d006900630072006f0073006f00660074002e00570069006e0064006f00770073002e005300680065006c006c0045007800700065007200690065006e006300650048006f00730074005f006300770035006e003100680032007400780079006500770079005c00530065007400740069006e00670073005c00730065007400740069006e00670073002e0064006100740000000000 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 201c33f12083697bdb75e7540199d650699c984a2e85a4cf6af3580525ae1c4e C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 71c433da2da10e809fa7d78e513f24150bc7454892f8c352cc36997e52a9a337 C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\Owner = 8c02000045658d5de219d801 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 6aa8a601c96cc161514c35e62440bc443fdecac238c5e223c6222537327f88a5 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\Sequence = "1" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c0044006f00630075006d0065006e0074007300200061006e0064002000530065007400740069006e00670073005c00410064006d0069006e005c004c006f00630061006c002000530065007400740069006e00670073005c005000610063006b0061006700650073005c004d006900630072006f0073006f00660074002e00570069006e0064006f00770073002e0043006f007200740061006e0061005f006300770035006e003100680032007400780079006500770079005c00530065007400740069006e00670073005c00730065007400740069006e00670073002e0064006100740000000000 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = e6955815d4dff4351626b4449a4bf73522fc17c09cc58d44114f4aca04472398 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = bf67297b086ab9befd6117032f2a985a85da33212742d466e4c2dfa02d22da1e C:\Windows\SysWOW64\rundll32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.a97d73e3 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.a97d73e3\ = "a97d73e3" C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\a97d73e3\DefaultIcon C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\a97d73e3 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\a97d73e3\DefaultIcon\ = "C:\\ProgramData\\a97d73e3.ico" C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.dll,#1

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.dll,#1

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe C:\Users\Admin\AppData\Local\Temp\156335b95ba216456f1ac0894b7b9d6ad95404ac7df447940f21646ca0090673.dll,#3 worker0 job0-3376

Network

Country Destination Domain Proto
US 8.8.8.8:53 baroquetees.com udp

Files

N/A