Analysis
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max time kernel
93s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
28/05/2024, 01:25
Static task
static1
Behavioral task
behavioral1
Sample
a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc.dll
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc.dll
Resource
win10v2004-20240426-en
General
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Target
a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc.dll
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Size
216KB
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MD5
6e6baf0ebd362fce6c058cdd5e99436b
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SHA1
08d3733cd2fb17f1738cb151ca9c9ada0c5e1f27
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SHA256
a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc
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SHA512
ca2f98148a63c420d4aa36f3dc219c5d53b1b2a50c5c0c5d09918d4925e37ae348f500a5b65901e3998302b78b66ec5faac077ac8ec051d25b4476822614cff5
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SSDEEP
3072:8ntIpsdUoDTZ7PqQI470azkqA0gNvbGLtBFlj5u5kPQru:8ntIe6o3Z7Pqt4kqngQLtBz55
Malware Config
Signatures
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Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AB}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}\2.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B4}\TypeLib\Version = "2.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A7}\ = "INKTWAB" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NKTWABLib.Contact regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AF}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C3}\ = "IGroups" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BA}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NKTWABLib.NKTWABItem\ = "NKTWABItem" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B0}\TypeLib\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C0}\ = "Group" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AC}\ProgID\ = "NKTWABLib.Folder" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BC}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C3}\TypeLib\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C3} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A7}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BC}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C3}\TypeLib\Version = "2.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AD}\ = "IFolders" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AC}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A8}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C1}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NKTWABLib.Contacts\CLSID\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B9}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C0}\ProgID\ = "NKTWABLib.Group" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NKTWABLib.NKTWAB regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A9}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AF}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B4}\TypeLib\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A9}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A9}\TypeLib\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NKTWABLib.ContactContainer\ = "ContactContainer" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BA}\TypeLib\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AB}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AB}\TypeLib\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A7}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C2}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BC}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AF}\TypeLib\Version = "2.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B6}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NKTWABLib.FolderContacts regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B6}\ = "FolderContacts" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NKTWABLib.Group\CLSID\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C0}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BA} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AA}\ = "Contact" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B0}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B4}\TypeLib\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BA}\ = "IContactContainer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B6}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7AF}\ = "IContacts" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B4}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B4}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7B9}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C0}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7C0}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A9}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7BA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A7}\ = "INKTWAB" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A7}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A7}\TypeLib\ = "{9E1DFDCF-6AEF-4166-A5D7-82D6F47BD7A6}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NKTWABLib.FolderContacts\CLSID regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5024 wrote to memory of 1992 5024 regsvr32.exe 83 PID 5024 wrote to memory of 1992 5024 regsvr32.exe 83 PID 5024 wrote to memory of 1992 5024 regsvr32.exe 83
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc.dll1⤵
- Suspicious use of WriteProcessMemory
PID:5024 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\a16fbf675322f9a163155cc508aa9ef87778f987991e0396a06772b0d6d30edc.dll2⤵
- Modifies registry class
PID:1992
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