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Analysis
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max time kernel
92s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21/01/2025, 22:48
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_081dfb098329f114ddf2ea6c0e08971f.dll
Resource
win7-20241010-en
General
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Target
JaffaCakes118_081dfb098329f114ddf2ea6c0e08971f.dll
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Size
96KB
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MD5
081dfb098329f114ddf2ea6c0e08971f
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SHA1
4e7227a7394e7f3ea721f348189d9455bcc8af25
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SHA256
5b34a3a0ed041cb5862736de615e25c9df54cbf7c363d9af32a0da8b182d901c
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SHA512
bedd8fb52ca348de81652cbabe86fcc2f0ea19c3ad91931381e511ae9d452b9d74f7a76d7d9781fca074f742ec93869fe924f2695964dfbae56362f096b7a2dd
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SSDEEP
1536:wiBIdkwPKXiuPolyxfYXtU0FnoHD0dLNoENgnaHagM:VGd5SXiwr8R+eLaENgnarM
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 4384 rundll32mgr.exe 2696 WaterMark.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
resource yara_rule behavioral2/memory/4384-6-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4384-5-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4384-12-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4384-11-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4384-13-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4384-9-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4384-7-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2696-28-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2696-26-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2696-37-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2696-39-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Microsoft\WaterMark.exe rundll32mgr.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe rundll32mgr.exe File opened for modification C:\Program Files (x86)\Microsoft\pxB49A.tmp rundll32mgr.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 4328 3920 WerFault.exe 83 1504 112 WerFault.exe 87 -
System Location Discovery: System Language Discovery 1 TTPs 5 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 WaterMark.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32mgr.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2710927979" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2708271735" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157334" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{CD0CF0C2-D849-11EF-A7EA-EE8B2F3CE00B} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157334" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2708271735" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2710927979" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444264670" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{CD0F547F-D849-11EF-A7EA-EE8B2F3CE00B} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157334" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157334" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe 2696 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2696 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1840 iexplore.exe 2384 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 2384 iexplore.exe 2384 iexplore.exe 1840 iexplore.exe 1840 iexplore.exe 1068 IEXPLORE.EXE 1068 IEXPLORE.EXE 752 IEXPLORE.EXE 752 IEXPLORE.EXE 1068 IEXPLORE.EXE 1068 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 4384 rundll32mgr.exe 2696 WaterMark.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 2796 wrote to memory of 3920 2796 rundll32.exe 83 PID 2796 wrote to memory of 3920 2796 rundll32.exe 83 PID 2796 wrote to memory of 3920 2796 rundll32.exe 83 PID 3920 wrote to memory of 4384 3920 rundll32.exe 84 PID 3920 wrote to memory of 4384 3920 rundll32.exe 84 PID 3920 wrote to memory of 4384 3920 rundll32.exe 84 PID 4384 wrote to memory of 2696 4384 rundll32mgr.exe 86 PID 4384 wrote to memory of 2696 4384 rundll32mgr.exe 86 PID 4384 wrote to memory of 2696 4384 rundll32mgr.exe 86 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 112 2696 WaterMark.exe 87 PID 2696 wrote to memory of 2384 2696 WaterMark.exe 92 PID 2696 wrote to memory of 2384 2696 WaterMark.exe 92 PID 2696 wrote to memory of 1840 2696 WaterMark.exe 93 PID 2696 wrote to memory of 1840 2696 WaterMark.exe 93 PID 1840 wrote to memory of 1068 1840 iexplore.exe 95 PID 1840 wrote to memory of 1068 1840 iexplore.exe 95 PID 1840 wrote to memory of 1068 1840 iexplore.exe 95 PID 2384 wrote to memory of 752 2384 iexplore.exe 96 PID 2384 wrote to memory of 752 2384 iexplore.exe 96 PID 2384 wrote to memory of 752 2384 iexplore.exe 96
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_081dfb098329f114ddf2ea6c0e08971f.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2796 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_081dfb098329f114ddf2ea6c0e08971f.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3920 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4384 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"4⤵
- 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:2696 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe5⤵PID:112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 112 -s 2086⤵
- Program crash
PID:1504
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2384 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:752
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1840 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1840 CREDAT:17410 /prefetch:26⤵
- 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 -u -p 3920 -s 6083⤵
- Program crash
PID:4328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3920 -ip 39201⤵PID:3352
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 112 -ip 1121⤵PID:3116
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5fbd57568c7e969025fd7a77d6a9e5f45
SHA1d8c221556c7dbeb55cbfe80a3006b6578e2ae4bd
SHA256b820d32dc781d4a3af1cc452d73d4f57e1d963da4cdec90cb0660837657c8328
SHA512c8d4e5b78e01570d02f0953bd0ebd818ed2985dfc5006ba39ce101693f1bc9de8550b9149d3028911ec5c1371b813f0bc8391d10294e04022b52a91c3d47f5cf
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD539588be05607914622b13304c5cd3bdc
SHA10bcd597dc933f864504c5fe123c263580c41c037
SHA2568588a00893670430bf48da73a22094fa02586a2c62d753cbeb05969217965dbc
SHA512e5c1d69e6f5a62eeb9a908188beaf34e4f0c0372a77274028c5cce88b1dcf6ae64b1e27da1b6ed0ede54aef329eb2fa7fc1f868b919781cd30e4c02548e56332
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{CD0CF0C2-D849-11EF-A7EA-EE8B2F3CE00B}.dat
Filesize3KB
MD50c81290550e2c9590a169c88f6666522
SHA171bb2d4fea04810641cdcf4f56e15452c115a569
SHA256f3f461c7d2f765bc51e18c25833839e7186e04e4a11491fc2877f0666a41cf59
SHA512cf05a9080153bfb01740d2160b4b80c6705f8207a15dbde91920169379ec5ef33400e1fb21ed3fa6ffd7ca1fc6c1bac275041bc2237712d4a3ed056f3bc1a665
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{CD0F547F-D849-11EF-A7EA-EE8B2F3CE00B}.dat
Filesize5KB
MD58ce6d0f1d2379b1a2d36e5d62b6b7152
SHA16b0eba27e5d026026a5688fe9f1ef60f64e7d44b
SHA256a4b1babbd25f4b6a7f2345acaf8e7c726dfa1751c2fa2b15454877e3166d8d46
SHA512eba7fb21cb59d67117533d92f4f18c1579c6f89ad4c24ec9ae53eec7003f8ffe1d395a758484e2f6b98ed3deaa15fc56122713d6b00c77901587561b806942f6
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
60KB
MD594f2f6ffbba8e7644668b51b39983916
SHA163357bbdf90101969117983dbc0d4ed0e713c4d7
SHA256ede7603855cb37082c241c720a6650988c684eb3bcb263e5dd7b457458940fed
SHA512d04430ceac70c6fa71d07d9ee82ac2bb5e6c0641d5c9e7e5a3ed39d342e8b198f367676516a55f0653e0b88635a027b9ad220e223145b8be8df281bb6faf7156