Analysis
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max time kernel
142s -
max time network
163s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
26/12/2023, 16:46
Static task
static1
Behavioral task
behavioral1
Sample
7dcb43f9b112f1c14ce99474e23c47a4.dll
Resource
win7-20231215-en
3 signatures
150 seconds
General
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Target
7dcb43f9b112f1c14ce99474e23c47a4.dll
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Size
262KB
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MD5
7dcb43f9b112f1c14ce99474e23c47a4
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SHA1
2461625116cb6236bdf0832fbae89c72520d61d9
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SHA256
12012694a5a53be9b9fc35ff238a5653b5424551c4b9ef3dd52c6064d748c3f0
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SHA512
068e870efa2e22548bd49f5a6e85bc05a4f1842077ce67ee1cfa5fa61499103af84088ce0894af2a9c34f2cc78d612f2fe6d937b5153522233e811bce1ecd054
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SSDEEP
3072:OyiYck5qEbUViVqUsVNXBB+/3FK3wY+Mx9ZKTwhzWgcs+y:OyiYckbiiVMrXJdt9ZPifly
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\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\ = "Banana Phone 1.0.0.7" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 34 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0\ = "BananaPhoneIEClientLib" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7dcb43f9b112f1c14ce99474e23c47a4.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\Version\ = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\ = "IBananaPhone" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7dcb43f9b112f1c14ce99474e23c47a4.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\TypeLib\ = "{6819E778-381F-4196-998A-F1E06AEEE407}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\ = "IBananaPhone" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\ = "Banana Phone 1.0.0.7" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{88e4fbf6-b6bc-438f-8543-ef5c3a58a479}\TypeLib\ = "{6819e778-381f-4196-998a-f1e06aeee407}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6819E778-381F-4196-998A-F1E06AEEE407}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D40EF720-55D2-4E48-9C0C-A2116AB6753A}\TypeLib\ = "{6819E778-381F-4196-998A-F1E06AEEE407}" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4924 wrote to memory of 3484 4924 regsvr32.exe 88 PID 4924 wrote to memory of 3484 4924 regsvr32.exe 88 PID 4924 wrote to memory of 3484 4924 regsvr32.exe 88
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\7dcb43f9b112f1c14ce99474e23c47a4.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4924 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\7dcb43f9b112f1c14ce99474e23c47a4.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3484
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