Analysis
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max time kernel
142s -
max time network
114s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
31-12-2023 13:10
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
375da57189c31596f68b7fa97afa29ed.dll
Resource
win7-20231215-en
windows7-x64
3 signatures
150 seconds
General
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Target
375da57189c31596f68b7fa97afa29ed.dll
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Size
607KB
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MD5
375da57189c31596f68b7fa97afa29ed
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SHA1
6eb35e05c44faaa60000a2c7259534937d843156
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SHA256
fee8b56846cea2e71f5f20c721c07b542ecf31a608733ce45b184e79aa06aaf1
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SHA512
3845e3f787ce835c81fa921eeb973f0b25c3db7e45e27c303ec063b0577021e87e8aada83df4a90259d2b4b022d9ec1835d3c4fae672dddfd611273ffc6b3789
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SSDEEP
12288:dpIt9HX65cspWkY5DARyLuaIg3QaorrbfphJG0c/:detFXsoB7LGnaorrbBhJG0c
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 1 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\{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\375da57189c31596f68b7fa97afa29ed.iwc regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\375da57189c31596f68b7fa97afa29ed.iwc\ = "iwc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\375da57189c31596f68b7fa97afa29ed.iwc\Clsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\375da57189c31596f68b7fa97afa29ed.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D}\ProgID\ = "375da57189c31596f68b7fa97afa29ed.iwc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D}\ = "iwc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\375da57189c31596f68b7fa97afa29ed.iwc\Clsid\ = "{CC01FC6C-8CCE-8DF6-C7B6-88352CAC7F8D}" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2168 wrote to memory of 1560 2168 regsvr32.exe 17 PID 2168 wrote to memory of 1560 2168 regsvr32.exe 17 PID 2168 wrote to memory of 1560 2168 regsvr32.exe 17
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\375da57189c31596f68b7fa97afa29ed.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\375da57189c31596f68b7fa97afa29ed.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1560
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