Analysis
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max time kernel
112s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2022 19:36
Static task
static1
Behavioral task
behavioral1
Sample
fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe
Resource
win7-20221111-en
General
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Target
fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe
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Size
6.6MB
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MD5
57769fada48c063704e445333248862d
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SHA1
5dcfe780a49661c2b5fce9456eaaac4a8c21402a
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SHA256
fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef
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SHA512
8d3b06d5c7846a436a549a701043e0e9d106f6fbfcec6e786030e007d8b7560cd7f239acabc04859cc6f1d4fa207f65d99ba06cc7f1b81b11775d36e314f6682
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SSDEEP
196608:MQFNkd4dZh2/0c9KdfEbTua1wk6QO+5kv:MQzY4nh2/0c9KFGTulE5kv
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exeDesktopLayer.exepid process 4256 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe 1548 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe upx C:\Users\Admin\AppData\Local\Temp\fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/4256-139-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/1548-143-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 4 IoCs
Processes:
fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exepid process 1704 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe 1704 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe 1704 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe 1704 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe -
Drops file in Program Files directory 3 IoCs
Processes:
fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\pxD074.tmp fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.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 Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{76572E09-6F56-11ED-BF5F-621DF61BAEF5} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376430268" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 1548 DesktopLayer.exe 1548 DesktopLayer.exe 1548 DesktopLayer.exe 1548 DesktopLayer.exe 1548 DesktopLayer.exe 1548 DesktopLayer.exe 1548 DesktopLayer.exe 1548 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1664 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 1664 iexplore.exe 1664 iexplore.exe 1436 IEXPLORE.EXE 1436 IEXPLORE.EXE 1436 IEXPLORE.EXE 1436 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exefd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1704 wrote to memory of 4256 1704 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe PID 1704 wrote to memory of 4256 1704 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe PID 1704 wrote to memory of 4256 1704 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe PID 4256 wrote to memory of 1548 4256 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe DesktopLayer.exe PID 4256 wrote to memory of 1548 4256 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe DesktopLayer.exe PID 4256 wrote to memory of 1548 4256 fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exe DesktopLayer.exe PID 1548 wrote to memory of 1664 1548 DesktopLayer.exe iexplore.exe PID 1548 wrote to memory of 1664 1548 DesktopLayer.exe iexplore.exe PID 1664 wrote to memory of 1436 1664 iexplore.exe IEXPLORE.EXE PID 1664 wrote to memory of 1436 1664 iexplore.exe IEXPLORE.EXE PID 1664 wrote to memory of 1436 1664 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe"C:\Users\Admin\AppData\Local\Temp\fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeef.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exeC:\Users\Admin\AppData\Local\Temp\fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.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:1664 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\fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\fd689182ea60651165fb4367db6d6e30b802f255c07bebae77f1ff7906acfeefSrv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\nstD008.tmp\ButtonLinker.dllFilesize
7KB
MD5dd85ac7d85c92dd0e3cc17dfd4890f54
SHA1a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa
SHA25627abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504
SHA512e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1
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C:\Users\Admin\AppData\Local\Temp\nstD008.tmp\ButtonLinker.dllFilesize
7KB
MD5dd85ac7d85c92dd0e3cc17dfd4890f54
SHA1a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa
SHA25627abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504
SHA512e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1
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C:\Users\Admin\AppData\Local\Temp\nstD008.tmp\System.dllFilesize
67KB
MD58fef2ddc02a88527acf5f875aa79590a
SHA1b3ebe53a0037789c155992eee0547de1a76712b9
SHA2565b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50
SHA5127f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de
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C:\Users\Admin\AppData\Local\Temp\nstD008.tmp\System.dllFilesize
67KB
MD58fef2ddc02a88527acf5f875aa79590a
SHA1b3ebe53a0037789c155992eee0547de1a76712b9
SHA2565b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50
SHA5127f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de
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memory/1548-137-0x0000000000000000-mapping.dmp
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memory/1548-142-0x0000000000500000-0x000000000050F000-memory.dmpFilesize
60KB
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memory/1548-143-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1548-147-0x0000000000500000-0x000000000050F000-memory.dmpFilesize
60KB
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memory/1704-141-0x0000000010000000-0x0000000010015000-memory.dmpFilesize
84KB
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memory/1704-146-0x0000000010000000-0x0000000010015000-memory.dmpFilesize
84KB
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memory/4256-133-0x0000000000000000-mapping.dmp
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memory/4256-139-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB