Overview
overview
10Static
static
FTPSet.exe
windows7_x64
10FTPSet.exe
windows10-2004_x64
10FtpSrv.exe
windows7_x64
10FtpSrv.exe
windows10-2004_x64
10QB903D.exe
windows7_x64
1QB903D.exe
windows10-2004_x64
1ecgdb.exe
windows7_x64
1ecgdb.exe
windows10-2004_x64
1ecgpaint.exe
windows7_x64
10ecgpaint.exe
windows10-2004_x64
10imgctl.dll
windows7_x64
10imgctl.dll
windows10-2004_x64
10sysdef.dll
windows7_x64
10sysdef.dll
windows10-2004_x64
10tcpip.exe
windows7_x64
10tcpip.exe
windows10-2004_x64
10Analysis
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max time kernel
104s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
16-06-2022 02:20
Static task
static1
Behavioral task
behavioral1
Sample
FTPSet.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
FTPSet.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral3
Sample
FtpSrv.exe
Resource
win7-20220414-en
Behavioral task
behavioral4
Sample
FtpSrv.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral5
Sample
QB903D.exe
Resource
win7-20220414-en
Behavioral task
behavioral6
Sample
QB903D.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral7
Sample
ecgdb.exe
Resource
win7-20220414-en
Behavioral task
behavioral8
Sample
ecgdb.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral9
Sample
ecgpaint.exe
Resource
win7-20220414-en
Behavioral task
behavioral10
Sample
ecgpaint.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral11
Sample
imgctl.dll
Resource
win7-20220414-en
Behavioral task
behavioral12
Sample
imgctl.dll
Resource
win10v2004-20220414-en
Behavioral task
behavioral13
Sample
sysdef.dll
Resource
win7-20220414-en
Behavioral task
behavioral14
Sample
sysdef.dll
Resource
win10v2004-20220414-en
Behavioral task
behavioral15
Sample
tcpip.exe
Resource
win7-20220414-en
General
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Target
imgctl.dll
-
Size
420KB
-
MD5
42e7b4b831b5da9650eb251234943a60
-
SHA1
11f297aa779a02b1c0a8977b7ef7eef7bbbe2f89
-
SHA256
dc209d9d68ce96de6e6dbaf453e33ee8dec73b654c3c0eb27f03cbcf80d27b03
-
SHA512
395f1752527d26e3afe756dd16abc1f5d5be56b275671acadbd1753e5f1d46495aabc217a54640741fac6b8565638db2d0185284a33c46c12b226dc7124a6a76
Malware Config
Signatures
-
Executes dropped EXE 2 IoCs
Processes:
rundll32Srv.exeDesktopLayer.exepid process 2740 rundll32Srv.exe 2764 DesktopLayer.exe -
Processes:
resource yara_rule C:\Windows\SysWOW64\rundll32Srv.exe upx C:\Windows\SysWOW64\rundll32Srv.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral12/memory/2740-136-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral12/memory/2764-138-0x0000000000400000-0x000000000042E000-memory.dmp upx -
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 created C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\px9D6D.tmp rundll32Srv.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\SuggestionsURLFallback = "http://api.bing.com/qsml.aspx?query={searchTerms}&maxwidth={ie:maxWidth}&rowheight={ie:rowHeight}§ionHeight={ie:sectionHeight}&FORM=IESS02&market={language}" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\DefaultScope = "{0633EE93-D776-472f-A0FF-E1416B8B2E3A}" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3309693689" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3309693689" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\Version = "5" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A} iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\NTLogoURL = "http://go.microsoft.com/fwlink/?LinkID=403856&language={language}&scale={scalelevel}&contrast={contrast}" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30966072" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\SearchScopes iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\FaviconPath = "C:\\Users\\Admin\\AppData\\LocalLow\\Microsoft\\Internet Explorer\\Services\\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\URL = "http://www.bing.com/search?q={searchTerms}&src=IE-SearchBox&FORM=IESR02" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\SuggestionsURL = "http://api.bing.com/qsml.aspx?query={searchTerms}&maxwidth={ie:maxWidth}&rowheight={ie:rowHeight}§ionHeight={ie:sectionHeight}&FORM=IESS02&market={language}" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\NTTopResultURL = "http://www.bing.com/search?q={searchTerms}&src=IE-SearchBox&FORM=IENTTR" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\NTSuggestionsURL = "http://api.bing.com/qsml.aspx?query={searchTerms}&market={language}&maxwidth={ie:maxWidth}&rowheight={ie:rowHeight}§ionHeight={ie:sectionHeight}&FORM=IENTSS" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\FaviconURLFallback = "http://www.bing.com/favicon.ico" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\NTLogoPath = "C:\\Users\\Admin\\AppData\\LocalLow\\Microsoft\\Internet Explorer\\Services\\" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\User Preferences iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30966072" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{EB162554-ED2B-11EC-AC67-C618EE80FC43} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\UpgradeTime = f982cdb29d50d801 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\FaviconURL = "http://www.bing.com/favicon.ico" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\NTURL = "http://www.bing.com/search?q={searchTerms}&src=IE-SearchBox&FORM=IENTSR" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\User Preferences\3DB9590C4C4C26C4CCBDD94ECAD790359708C3267B = 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 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\User Preferences\2BB20B33B4171CDAAB6469225AE6A582ED33D7B488 = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000009ca67aad6973c147a14e4257979b091500000000020000000000106600000001000020000000c6a4a6fe7f755ce48c8586ca3e78e2a0cdc43f8a40852a77311e842738e2f2e9000000000e80000000020000200000006fc705019bedb81b0df1be0dda4354b3b4d3a95cc5989b0e49286213179316ad100000008d67faae28dcf6cd6b2c7df461ee7acc40000000a8e3c846ddf1f88d1ee8bfd4f3f9eedbd7742fe762db39691a4d667c85165a181571c49e86524b03729549bfb00a88733c8507f93f52452d50991aabe6784416 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "362118322" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 2764 DesktopLayer.exe 2764 DesktopLayer.exe 2764 DesktopLayer.exe 2764 DesktopLayer.exe 2764 DesktopLayer.exe 2764 DesktopLayer.exe 2764 DesktopLayer.exe 2764 DesktopLayer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
iexplore.exepid process 2940 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 2940 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 2940 iexplore.exe 2940 iexplore.exe 2612 IEXPLORE.EXE 2612 IEXPLORE.EXE 2612 IEXPLORE.EXE 2612 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 4968 wrote to memory of 4928 4968 rundll32.exe rundll32.exe PID 4968 wrote to memory of 4928 4968 rundll32.exe rundll32.exe PID 4968 wrote to memory of 4928 4968 rundll32.exe rundll32.exe PID 4928 wrote to memory of 2740 4928 rundll32.exe rundll32Srv.exe PID 4928 wrote to memory of 2740 4928 rundll32.exe rundll32Srv.exe PID 4928 wrote to memory of 2740 4928 rundll32.exe rundll32Srv.exe PID 2740 wrote to memory of 2764 2740 rundll32Srv.exe DesktopLayer.exe PID 2740 wrote to memory of 2764 2740 rundll32Srv.exe DesktopLayer.exe PID 2740 wrote to memory of 2764 2740 rundll32Srv.exe DesktopLayer.exe PID 2764 wrote to memory of 2940 2764 DesktopLayer.exe iexplore.exe PID 2764 wrote to memory of 2940 2764 DesktopLayer.exe iexplore.exe PID 2940 wrote to memory of 2612 2940 iexplore.exe IEXPLORE.EXE PID 2940 wrote to memory of 2612 2940 iexplore.exe IEXPLORE.EXE PID 2940 wrote to memory of 2612 2940 iexplore.exe IEXPLORE.EXE
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\imgctl.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4968 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\imgctl.dll,#12⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2740 -
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
PID:2764 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2940 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2940 CREDAT:17410 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2612
Network
MITRE ATT&CK Enterprise 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:\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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memory/2740-131-0x0000000000000000-mapping.dmp
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memory/2740-136-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/2764-134-0x0000000000000000-mapping.dmp
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memory/2764-138-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/4928-130-0x0000000000000000-mapping.dmp