444a04415c9c901dadd148e53602ee583d1bdf123bf88ff503a92f8273a4aae3

Analysis

max time kernel
145s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 12:33

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General

Target
9baedc37662ed4b4a6138cb4ebc629b1.dll
Size 260KB
Sample240214-prezesad5z
SHA256 444a04415c9c901dadd148e53602ee583d1bdf123bf88ff503a92f8273a4aae3
MD5 9baedc37662ed4b4a6138cb4ebc629b1
SHA1 de551762b709192408638e82d1634ce552533086
SHA512 d3e9d239164a58e22d6b5c899075f199bfda41db37c01de8bfa2792f8698171e7b0e52272b9f4616e7fa57cc118621d950e872ceb59e8fb7ade1ff6c2b02501f
SSDEEP 3072:qC7BTtBgUz1tE4jnsfaQ/LzwuyEmCSP0dLdtoTC7f25LUqanl81tRf/:q2TzVXRjnMwTqdm4fUs85f
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31C8E838-ECB9-4285-9D61-D11438C6D177}	regsvr32.exe

Modifies registry class 50 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\ = "_IarfdEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\TypeLib\ = "{23084655-C406-4569-9831-8798B7D25365}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\VersionIndependentProgID\ = "QXK.Rhythm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\ = "Iarfd"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\TypeLib\ = "{23084655-C406-4569-9831-8798B7D25365}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\ProgID\ = "QXK.Rhythm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\ = "Iarfd"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9baedc37662ed4b4a6138cb4ebc629b1.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\TypeLib\ = "{23084655-C406-4569-9831-8798B7D25365}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\TypeLib\ = "{23084655-C406-4569-9831-8798B7D25365}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0\ = "arfd TL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\TypeLib\ = "{23084655-C406-4569-9831-8798B7D25365}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9baedc37662ed4b4a6138cb4ebc629b1.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\ = "QXK Rhythm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{23084655-C406-4569-9831-8798B7D25365}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{99B7F1DD-AAEE-4F62-AE7C-59B51A5297F5}\ = "_IarfdEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDE71241-35D4-48D7-AECA-623502392BCC}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31C8E838-ECB9-4285-9D61-D11438C6D177}\Programmable	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 1580	4172	regsvr32.exe	83
PID 4172 wrote to memory of 1580	4172	regsvr32.exe	83
PID 4172 wrote to memory of 1580	4172	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\9baedc37662ed4b4a6138cb4ebc629b1.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4172
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\9baedc37662ed4b4a6138cb4ebc629b1.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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