Analysis
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max time kernel
120s -
max time network
137s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
10/01/2024, 07:49
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
4ffe82a47984682b74bc03ec7eb4c08b.dll
Resource
win7-20231129-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
4ffe82a47984682b74bc03ec7eb4c08b.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
5 signatures
150 seconds
General
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Target
4ffe82a47984682b74bc03ec7eb4c08b.dll
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Size
85KB
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MD5
4ffe82a47984682b74bc03ec7eb4c08b
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SHA1
b85b59a9121f1a4e7c44821c573030e5a95201f5
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SHA256
5bec760b16a1f0c037c7117ea552736f769fc4c8c28451eb2c0b6418b0525deb
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SHA512
9f56eb5382f3e219cba3c8cedf8fc76929762a92bccc593fd870ab42302229428f63a2d712148e06f50b2bc591c8b82d7720416830248c484cff160ac94a1f45
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SSDEEP
768:BGjzAHzJBeEsChgphP49XKkrJOUYyGmRX:BGfAHbeYUFaXKk5ywX
Score
1/10
Malware Config
Signatures
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "411034841" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\Toolbar regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{C5C35091-AF8C-11EE-8EEA-EE2F313809B4} = "0" iexplore.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar\{254B87BB-510D-41FA-A887-52C5FA9BE585} = 00 regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe -
Modifies registry class 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{254B87BB-510D-41FA-A887-52C5FA9BE585}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{254B87BB-510D-41FA-A887-52C5FA9BE585}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4ffe82a47984682b74bc03ec7eb4c08b.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{254B87BB-510D-41FA-A887-52C5FA9BE585}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{254B87BB-510D-41FA-A887-52C5FA9BE585} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{254B87BB-510D-41FA-A887-52C5FA9BE585}\Implemented Categories regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{254B87BB-510D-41FA-A887-52C5FA9BE585}\Implemented Categories\{00021493-0000-0000-C000-000000000046} regsvr32.exe Key created \REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{254B87BB-510D-41FA-A887-52C5FA9BE585} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{254B87BB-510D-41FA-A887-52C5FA9BE585}\ = "Internet Service" regsvr32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2948 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2948 iexplore.exe 2948 iexplore.exe 2908 IEXPLORE.EXE 2908 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2960 wrote to memory of 2512 2960 regsvr32.exe 16 PID 2960 wrote to memory of 2512 2960 regsvr32.exe 16 PID 2960 wrote to memory of 2512 2960 regsvr32.exe 16 PID 2960 wrote to memory of 2512 2960 regsvr32.exe 16 PID 2960 wrote to memory of 2512 2960 regsvr32.exe 16 PID 2960 wrote to memory of 2512 2960 regsvr32.exe 16 PID 2960 wrote to memory of 2512 2960 regsvr32.exe 16 PID 2948 wrote to memory of 2908 2948 iexplore.exe 18 PID 2948 wrote to memory of 2908 2948 iexplore.exe 18 PID 2948 wrote to memory of 2908 2948 iexplore.exe 18 PID 2948 wrote to memory of 2908 2948 iexplore.exe 18
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\4ffe82a47984682b74bc03ec7eb4c08b.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\4ffe82a47984682b74bc03ec7eb4c08b.dll2⤵
- Modifies Internet Explorer settings
- Modifies registry class
PID:2512
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2948 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2948 CREDAT:275457 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2908
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