Analysis
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max time kernel
146s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20240319-en -
resource tags
arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system -
submitted
21-03-2024 13:25
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
dbbb9485554603a6289d6bbcfcbed55b.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
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Target
dbbb9485554603a6289d6bbcfcbed55b.dll
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Size
607KB
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MD5
dbbb9485554603a6289d6bbcfcbed55b
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SHA1
330d4ebf0019a1b43f834aafa06bdffcfcaaead8
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SHA256
58306f8a3500892d626b9d23c1f9fec2c33bfebd8e1063f00fd8c07beec50182
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SHA512
0b5340ce32acbbc43e8c0718b08dd1bd0b05e77836d2efb405fd6a19f5f99ff91fc255857846f9071ddacdd9caf3b6e4cc12fcd4ab74b8b1c8612af09eda5f28
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SSDEEP
12288:SpIt9HX65cspWkY5DARyLuaIg3Qao+rRmAuET2u00/:SetFXsoB7LGnao+rcAupu00
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-6D89-B5B4-849D-6E347885FD6B} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6D89-B5B4-849D-6E347885FD6B}\ = "iwc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6D89-B5B4-849D-6E347885FD6B}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbbb9485554603a6289d6bbcfcbed55b.iwc regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6D89-B5B4-849D-6E347885FD6B} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6D89-B5B4-849D-6E347885FD6B}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbbb9485554603a6289d6bbcfcbed55b.iwc\ = "iwc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dbbb9485554603a6289d6bbcfcbed55b.iwc\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dbbb9485554603a6289d6bbcfcbed55b.iwc\Clsid\ = "{CC01FC6C-6D89-B5B4-849D-6E347885FD6B}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6D89-B5B4-849D-6E347885FD6B}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6D89-B5B4-849D-6E347885FD6B}\ProgID\ = "dbbb9485554603a6289d6bbcfcbed55b.iwc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6D89-B5B4-849D-6E347885FD6B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dbbb9485554603a6289d6bbcfcbed55b.dll" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3972 wrote to memory of 3840 3972 regsvr32.exe 93 PID 3972 wrote to memory of 3840 3972 regsvr32.exe 93 PID 3972 wrote to memory of 3840 3972 regsvr32.exe 93
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\dbbb9485554603a6289d6bbcfcbed55b.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\dbbb9485554603a6289d6bbcfcbed55b.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3840
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4528 --field-trial-handle=2320,i,3025503729105798828,9325691672526736153,262144 --variations-seed-version /prefetch:81⤵PID:3400