Analysis
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max time kernel
143s -
max time network
219s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
27-11-2022 18:05
Behavioral task
behavioral1
Sample
8e2328c7de8439142be0d751c321f230ea35fa5e606fef39b9ec278f6d487128.dll
Resource
win7-20221111-en
General
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Target
8e2328c7de8439142be0d751c321f230ea35fa5e606fef39b9ec278f6d487128.dll
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Size
88KB
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MD5
cadfbf69556372dd5955b726bc7156e8
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SHA1
0c86518a9e136fc2acb2dfd83c72b4665175bf4e
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SHA256
8e2328c7de8439142be0d751c321f230ea35fa5e606fef39b9ec278f6d487128
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SHA512
ec7912feb41ace1b2a1debc72d6c7c471cc1c3aa61235a47e6af447e6ca273ac8bb287b99235c9ef5876dc89337b2b959ac32c50c6ae54ab2350f69394518454
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SSDEEP
1536:VKXOP17PerAY+ARDBLk/F89ijzRu5h4EtTBp5Hp1ZSOYc85sY0X0pblu2:VKXOPhPpNARFgN0cu5h4EtNp5HQOYZ1Y
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
rundll32Srv.exeDesktopLayer.exepid process 1644 rundll32Srv.exe 1492 DesktopLayer.exe -
Processes:
resource yara_rule \Windows\SysWOW64\rundll32Srv.exe upx behavioral1/memory/1972-57-0x0000000010000000-0x0000000010026000-memory.dmp upx behavioral1/memory/1972-58-0x00000000001F0000-0x000000000021E000-memory.dmp upx C:\Windows\SysWOW64\rundll32Srv.exe upx C:\Windows\SysWOW64\rundll32Srv.exe upx \Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/1644-66-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/1492-69-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
Processes:
rundll32.exerundll32Srv.exepid process 1972 rundll32.exe 1644 rundll32Srv.exe -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe -
Drops file in Program Files directory 3 IoCs
Processes:
rundll32Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px5DF9.tmp rundll32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe -
Processes:
IEXPLORE.EXEiexplore.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376423873" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{9F9581D1-6F47-11ED-B1EF-6A950B37D0A0} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 1492 DesktopLayer.exe 1492 DesktopLayer.exe 1492 DesktopLayer.exe 1492 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 268 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 268 iexplore.exe 268 iexplore.exe 1388 IEXPLORE.EXE 1388 IEXPLORE.EXE 1388 IEXPLORE.EXE 1388 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1776 wrote to memory of 1972 1776 rundll32.exe rundll32.exe PID 1776 wrote to memory of 1972 1776 rundll32.exe rundll32.exe PID 1776 wrote to memory of 1972 1776 rundll32.exe rundll32.exe PID 1776 wrote to memory of 1972 1776 rundll32.exe rundll32.exe PID 1776 wrote to memory of 1972 1776 rundll32.exe rundll32.exe PID 1776 wrote to memory of 1972 1776 rundll32.exe rundll32.exe PID 1776 wrote to memory of 1972 1776 rundll32.exe rundll32.exe PID 1972 wrote to memory of 1644 1972 rundll32.exe rundll32Srv.exe PID 1972 wrote to memory of 1644 1972 rundll32.exe rundll32Srv.exe PID 1972 wrote to memory of 1644 1972 rundll32.exe rundll32Srv.exe PID 1972 wrote to memory of 1644 1972 rundll32.exe rundll32Srv.exe PID 1644 wrote to memory of 1492 1644 rundll32Srv.exe DesktopLayer.exe PID 1644 wrote to memory of 1492 1644 rundll32Srv.exe DesktopLayer.exe PID 1644 wrote to memory of 1492 1644 rundll32Srv.exe DesktopLayer.exe PID 1644 wrote to memory of 1492 1644 rundll32Srv.exe DesktopLayer.exe PID 1492 wrote to memory of 268 1492 DesktopLayer.exe iexplore.exe PID 1492 wrote to memory of 268 1492 DesktopLayer.exe iexplore.exe PID 1492 wrote to memory of 268 1492 DesktopLayer.exe iexplore.exe PID 1492 wrote to memory of 268 1492 DesktopLayer.exe iexplore.exe PID 268 wrote to memory of 1388 268 iexplore.exe IEXPLORE.EXE PID 268 wrote to memory of 1388 268 iexplore.exe IEXPLORE.EXE PID 268 wrote to memory of 1388 268 iexplore.exe IEXPLORE.EXE PID 268 wrote to memory of 1388 268 iexplore.exe IEXPLORE.EXE
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8e2328c7de8439142be0d751c321f230ea35fa5e606fef39b9ec278f6d487128.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8e2328c7de8439142be0d751c321f230ea35fa5e606fef39b9ec278f6d487128.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:268 CREDAT:275457 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\W9LUYDUL.txtFilesize
608B
MD55a1360ab5f6aa34712f54e9d0810da72
SHA1e2d795aed2103bd83b0e2912a3fdc7a420acca6e
SHA25673fa2787bfe562c459e59b0fa9f4b476996726b2677943f4c2094642979aebbf
SHA512e026b8c71b47247e889258f9618355e0d121e81ed4bd9feb02b3afc1c12fdd5e492ad2b3eba46434f776c60517e6824e9143ad7e3d663f7f12d2ce15bc950f3f
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C:\Windows\SysWOW64\rundll32Srv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Windows\SysWOW64\rundll32Srv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Windows\SysWOW64\rundll32Srv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/1492-64-0x0000000000000000-mapping.dmp
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memory/1492-69-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1644-59-0x0000000000000000-mapping.dmp
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memory/1644-66-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1972-54-0x0000000000000000-mapping.dmp
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memory/1972-58-0x00000000001F0000-0x000000000021E000-memory.dmpFilesize
184KB
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memory/1972-57-0x0000000010000000-0x0000000010026000-memory.dmpFilesize
152KB
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memory/1972-55-0x0000000075D61000-0x0000000075D63000-memory.dmpFilesize
8KB