Analysis
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max time kernel
98s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220715-en -
resource tags
arch:x64arch:x86image:win10v2004-20220715-enlocale:en-usos:windows10-2004-x64system -
submitted
17-07-2022 01:02
Static task
static1
Behavioral task
behavioral1
Sample
53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe
Resource
win7-20220715-en
General
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Target
53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe
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Size
828KB
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MD5
72ea2786e89cafb34a42c2ba5b1bfe53
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SHA1
eae469a2799ff4b0ee86d4656023a869b784af9e
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SHA256
53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f
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SHA512
9edd2be2d0e61e5829eb4288b99c51548fc0cfb32ee508f26e13427049c9ec081ef6b6222787a0250bf7e9bc4db69b44c4237a1cca47f01664b0fdefcf570345
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exeDesktopLayer.exepid process 940 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe 1744 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe upx C:\Users\Admin\AppData\Local\Temp\53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/940-137-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/1744-138-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
Processes:
53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exedescription ioc process File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\pxBC02.tmp 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "364792654" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{9394B454-057E-11ED-A59B-EA4954459AFD} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1820965890" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30972299" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1761434279" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1761434279" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30972299" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30972299" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 1744 DesktopLayer.exe 1744 DesktopLayer.exe 1744 DesktopLayer.exe 1744 DesktopLayer.exe 1744 DesktopLayer.exe 1744 DesktopLayer.exe 1744 DesktopLayer.exe 1744 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1352 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exeiexplore.exeIEXPLORE.EXEpid process 3608 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe 3608 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe 3608 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe 3608 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe 1352 iexplore.exe 1352 iexplore.exe 1824 IEXPLORE.EXE 1824 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 3608 wrote to memory of 940 3608 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe PID 3608 wrote to memory of 940 3608 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe PID 3608 wrote to memory of 940 3608 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe PID 940 wrote to memory of 1744 940 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe DesktopLayer.exe PID 940 wrote to memory of 1744 940 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe DesktopLayer.exe PID 940 wrote to memory of 1744 940 53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe DesktopLayer.exe PID 1744 wrote to memory of 1352 1744 DesktopLayer.exe iexplore.exe PID 1744 wrote to memory of 1352 1744 DesktopLayer.exe iexplore.exe PID 1352 wrote to memory of 1824 1352 iexplore.exe IEXPLORE.EXE PID 1352 wrote to memory of 1824 1352 iexplore.exe IEXPLORE.EXE PID 1352 wrote to memory of 1824 1352 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe"C:\Users\Admin\AppData\Local\Temp\53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4f.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exeC:\Users\Admin\AppData\Local\Temp\53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exe2⤵
- Executes dropped EXE
- 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"3⤵
- 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"4⤵
- 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:1352 CREDAT:17410 /prefetch:25⤵
- 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\Local\Temp\53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\53106e3240af56ae154c54cffad580d13362cbf14527bfc48bbcc3b5d89c6e4fSrv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/940-131-0x0000000000000000-mapping.dmp
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memory/940-137-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1744-134-0x0000000000000000-mapping.dmp
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memory/1744-138-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/3608-130-0x0000000000400000-0x00000000004EE000-memory.dmpFilesize
952KB
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memory/3608-139-0x0000000000400000-0x00000000004EE000-memory.dmpFilesize
952KB