Analysis
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max time kernel
141s -
max time network
137s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
15-05-2021 00:25
Static task
static1
Behavioral task
behavioral1
Sample
fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe
Resource
win7v20210410
General
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Target
fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe
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Size
230KB
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MD5
9dc135d8f028fb7c70933fdec936f419
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SHA1
d5e61fbc352fc2dc8d1b8f234801b96e7b3cd04f
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SHA256
fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7
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SHA512
95f2462cd33328ace30978f40619b0dfb329915bd68befa2cf62616658ee6444a367fd77ac2b8477eef0fcaf5a4c1c38191c1f07f511e34abd3bbe633fa6f4b7
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exeDesktopLayer.exepid process 1516 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe 2000 DesktopLayer.exe -
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe upx C:\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe upx C:\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe upx \Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/1516-77-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
Processes:
fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exefcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exepid process 1084 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe 1516 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe -
Drops file in Program Files directory 3 IoCs
Processes:
fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px4E1.tmp fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "327805351" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{CF9635B1-B518-11EB-A1A8-4E3F7CC12DEF} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 2000 DesktopLayer.exe 2000 DesktopLayer.exe 2000 DesktopLayer.exe 2000 DesktopLayer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
iexplore.exepid process 1200 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1200 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exeiexplore.exeIEXPLORE.EXEpid process 1084 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe 1084 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe 1200 iexplore.exe 1200 iexplore.exe 1444 IEXPLORE.EXE 1444 IEXPLORE.EXE 1444 IEXPLORE.EXE 1444 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exefcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1084 wrote to memory of 1516 1084 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe PID 1084 wrote to memory of 1516 1084 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe PID 1084 wrote to memory of 1516 1084 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe PID 1084 wrote to memory of 1516 1084 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe PID 1516 wrote to memory of 2000 1516 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe DesktopLayer.exe PID 1516 wrote to memory of 2000 1516 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe DesktopLayer.exe PID 1516 wrote to memory of 2000 1516 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe DesktopLayer.exe PID 1516 wrote to memory of 2000 1516 fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe DesktopLayer.exe PID 2000 wrote to memory of 1200 2000 DesktopLayer.exe iexplore.exe PID 2000 wrote to memory of 1200 2000 DesktopLayer.exe iexplore.exe PID 2000 wrote to memory of 1200 2000 DesktopLayer.exe iexplore.exe PID 2000 wrote to memory of 1200 2000 DesktopLayer.exe iexplore.exe PID 1200 wrote to memory of 1444 1200 iexplore.exe IEXPLORE.EXE PID 1200 wrote to memory of 1444 1200 iexplore.exe IEXPLORE.EXE PID 1200 wrote to memory of 1444 1200 iexplore.exe IEXPLORE.EXE PID 1200 wrote to memory of 1444 1200 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe"C:\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exeC:\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exe2⤵
- 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"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 behavior: GetForegroundWindowSpam
- 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:1200 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\L23XBGLW.txtMD5
b583337ccafc8bc2b869e2640d88b114
SHA14dc71cdc024f89536e8d61f82f1f39005ed19970
SHA256439b66e35c64d0b644b86cde74f033855b0ea0b526cd0dfb1da8ad80865941a1
SHA5127d61b4701f8a02037ce4a0d8228c53436ee1d60b27dfd6ee69c936ae1da5b1020d87684e3603d22b666d57cb29f1c3c86bf1c8163bea739384d3f6bc9d6a041c
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\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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\Users\Admin\AppData\Local\Temp\fcaf8d356cd9c31dc8c05093f18532a8ed9a356a435570554e6ac211f19a95f7Srv.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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memory/1084-60-0x00000000752F1000-0x00000000752F3000-memory.dmpFilesize
8KB
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memory/1200-72-0x0000000000000000-mapping.dmp
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memory/1200-80-0x0000000003F20000-0x0000000003F21000-memory.dmpFilesize
4KB
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memory/1444-75-0x0000000002140000-0x0000000002142000-memory.dmpFilesize
8KB
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memory/1444-73-0x0000000000000000-mapping.dmp
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memory/1516-77-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1516-76-0x0000000000230000-0x000000000023F000-memory.dmpFilesize
60KB
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memory/1516-62-0x0000000000000000-mapping.dmp
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memory/2000-71-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/2000-67-0x0000000000000000-mapping.dmp