Analysis
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max time kernel
111s -
max time network
115s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16-12-2024 13:02
Static task
static1
Behavioral task
behavioral1
Sample
765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe
Resource
win7-20240903-en
General
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Target
765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe
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Size
118KB
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MD5
967e4a5a3608a5e3acea1874f7dc82c0
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SHA1
3d8771a66962163ec1d481b601cf1323f3fd3958
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SHA256
765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9
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SHA512
2b7ace2f4220a847b46e3ebec6a5d61cb1b8b5724e5833bcde77495a6bbbcda953286482ab90196e25918deafd385ad45f19e05dd81abfde6eb065e407806fef
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SSDEEP
1536:ZVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApEVkyINWhCyqaOIgo8tyo:pnxwgxgfR/DVG7wBpEO5NWhCaORpt7
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 1 IoCs
pid Process 2396 WaterMark.exe -
resource yara_rule behavioral2/memory/848-7-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/848-9-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/848-5-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/848-4-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/848-3-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/848-11-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/848-12-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2396-27-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2396-25-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2396-32-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2396-35-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2396-34-0x0000000000400000-0x0000000000428000-memory.dmp upx behavioral2/memory/2396-39-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2396-40-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px77A1.tmp 765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe 765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 3620 4048 WerFault.exe 84 -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WaterMark.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3587019336" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3586237996" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3587019336" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150010" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150010" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{FA500B89-BBAD-11EF-B9B6-E6FB6C85BB83} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{FA526D90-BBAD-11EF-B9B6-E6FB6C85BB83} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3586237996" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441119142" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150010" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150010" IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe 2396 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2396 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2480 iexplore.exe 1328 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 2480 iexplore.exe 2480 iexplore.exe 1328 iexplore.exe 1328 iexplore.exe 1068 IEXPLORE.EXE 1068 IEXPLORE.EXE 2316 IEXPLORE.EXE 2316 IEXPLORE.EXE 1068 IEXPLORE.EXE 1068 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 848 765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe 2396 WaterMark.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 848 wrote to memory of 2396 848 765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe 83 PID 848 wrote to memory of 2396 848 765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe 83 PID 848 wrote to memory of 2396 848 765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe 83 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 4048 2396 WaterMark.exe 84 PID 2396 wrote to memory of 1328 2396 WaterMark.exe 89 PID 2396 wrote to memory of 1328 2396 WaterMark.exe 89 PID 2396 wrote to memory of 2480 2396 WaterMark.exe 90 PID 2396 wrote to memory of 2480 2396 WaterMark.exe 90 PID 2480 wrote to memory of 1068 2480 iexplore.exe 92 PID 2480 wrote to memory of 1068 2480 iexplore.exe 92 PID 2480 wrote to memory of 1068 2480 iexplore.exe 92 PID 1328 wrote to memory of 2316 1328 iexplore.exe 93 PID 1328 wrote to memory of 2316 1328 iexplore.exe 93 PID 1328 wrote to memory of 2316 1328 iexplore.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe"C:\Users\Admin\AppData\Local\Temp\765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9N.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:848 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2396 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:4048
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 2044⤵
- Program crash
PID:3620
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1328 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1328 CREDAT:17410 /prefetch:24⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2316
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2480 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2480 CREDAT:17410 /prefetch:24⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1068
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4048 -ip 40481⤵PID:4468
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
118KB
MD5967e4a5a3608a5e3acea1874f7dc82c0
SHA13d8771a66962163ec1d481b601cf1323f3fd3958
SHA256765e5315d1ef2dba0b7c342ea73aab387902497c302df124fbf13bdff98bbad9
SHA5122b7ace2f4220a847b46e3ebec6a5d61cb1b8b5724e5833bcde77495a6bbbcda953286482ab90196e25918deafd385ad45f19e05dd81abfde6eb065e407806fef
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5ec237169ada59f1945749967a6d3d7f0
SHA1e8fe32e8fa527409463d3fa0d63b6bdf709d7bd6
SHA256b783f55456ca301f00aab79b6a0720bfb2450aefd094e6026231fab663152d70
SHA512d5b5bff9f6afb36817c2c556e67c4ed7fc787a51bef623eb7150b596cc4cc88bee4b10b5eccae2c2ed0055653166f68bf75f2375ce4689666eb42330361de2d5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD509dc195c6014d08e8c8ba9502737e8d0
SHA1f50db198548ee4eea9fa8ddbff2fab26a1832a5d
SHA256d3efda6d7a2d40642b327513bc68cba2330ba7f0a6cdb5c856662dc168a90b3c
SHA51287fe2cbb5f69e590e996faa18e2dbbc50d20301ec01b38fa2b2382a3a6fd7698742ac334dca31798cd716d1a1be6d74a6c5b5a15504ec206ae64e614f2f93417
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{FA500B89-BBAD-11EF-B9B6-E6FB6C85BB83}.dat
Filesize3KB
MD58a7c9644393212c2954239f50e01b171
SHA10ae1cde6314c0539c8aa8f756de6c0766c77f0f6
SHA25636d6ab03e5f353b23b522f29c4d532ed4ed69fe43f0ffd53545b8d6734a4a83a
SHA512ac55894c3ab5088326da4c8cb948ebc1bd34d3c773d4d980e01210279bc34c3d044865fb8036482491ac14fe8ed23311456f8395fbee137c4a536d57268ad4f4
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{FA526D90-BBAD-11EF-B9B6-E6FB6C85BB83}.dat
Filesize5KB
MD504adaccbc51087160d32f54aa8f89beb
SHA11ee689309b36a82425b6e32224ab53141b4930ab
SHA256219690775b7fb0bffb284e3d67ab0b716f0a50965b22b472bb2cca483dd9bf40
SHA512e129932beae7a93cf5af7a4becc6962a5618f81cc80dfb0b798ced30c7707fbc4812712383f35b731b1cb26bdcb1f681be3881d835818a72971b0863163a9cd2
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee