Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
23-01-2024 23:27
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
70d66eb5296bce7aa513aeec6912d939.dll
Resource
win7-20231215-en
windows7-x64
3 signatures
150 seconds
General
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Target
70d66eb5296bce7aa513aeec6912d939.dll
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Size
332KB
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MD5
70d66eb5296bce7aa513aeec6912d939
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SHA1
aeb3bff06019637388de2013334afdacdb8d20a4
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SHA256
4d81feb425715df3e1f56a1be55d133355ef3bf028dfe8fc5c49a076dcbf1b2f
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SHA512
732cb9675f135753d9ddc49701cba17547dfe2594867e9f436f26763665e6fb8380d5f5fa89760dfbf83054388dd52db56e70c3a456bfda0d28627fb00ec5881
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SSDEEP
6144:UDIINmze4sitPz1gyW2StG+rKl2zEkFUaJ0zs:UDIIY7slyhS9OlKADo
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 27 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\main.DLL regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\ = "Browser Helper Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ = "Browser Helper Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A0E1054B-01EE-4D57-A059-4D99F339709F} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\CLSID\ = "{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\ = "Browser Helper Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A0E1054B-01EE-4D57-A059-4D99F339709F}\ = "Browser Helper Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\AppID = "{A0E1054B-01(" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\main.DLL\AppID = "{A0E1054B-01EE-4D57-A059-4D99F339709F}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CLSID\ = "{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID\ = "main.BHO.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CurVer\ = "main.BHO.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\VersionIndependentProgID\ = "main.BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\70d66eb5296bce7aa513aeec6912d939.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2928 wrote to memory of 1280 2928 regsvr32.exe 28 PID 2928 wrote to memory of 1280 2928 regsvr32.exe 28 PID 2928 wrote to memory of 1280 2928 regsvr32.exe 28 PID 2928 wrote to memory of 1280 2928 regsvr32.exe 28 PID 2928 wrote to memory of 1280 2928 regsvr32.exe 28 PID 2928 wrote to memory of 1280 2928 regsvr32.exe 28 PID 2928 wrote to memory of 1280 2928 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\70d66eb5296bce7aa513aeec6912d939.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2928 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\70d66eb5296bce7aa513aeec6912d939.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1280
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