Analysis
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max time kernel
138s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
25-06-2022 17:41
Static task
static1
Behavioral task
behavioral1
Sample
35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe
Resource
win7-20220414-en
General
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Target
35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe
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Size
4.2MB
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MD5
21e9fc2bb66da48d1cad9721382b5a62
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SHA1
637fd7ca67edea08a437e1dc2666fd89c92f0f6e
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SHA256
35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399
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SHA512
8169a144f95f22879492570749dc7eca232f16496b18c9ee3035c620c4d804b6e817d78e32199f8d8bf43ec97abf17a113e9005cbe94e8d00debe8e2afa1d130
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 2 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000800000001231a-107.dat acprotect behavioral1/files/0x000800000001231f-108.dat acprotect -
resource yara_rule behavioral1/files/0x0008000000012316-67.dat aspack_v212_v242 behavioral1/files/0x0008000000012316-68.dat aspack_v212_v242 behavioral1/files/0x0008000000012316-70.dat aspack_v212_v242 behavioral1/files/0x0008000000012316-81.dat aspack_v212_v242 behavioral1/files/0x0008000000012316-91.dat aspack_v212_v242 behavioral1/files/0x0008000000012316-99.dat aspack_v212_v242 behavioral1/files/0x0008000000012312-109.dat aspack_v212_v242 behavioral1/files/0x0008000000012312-110.dat aspack_v212_v242 behavioral1/files/0x0008000000012312-111.dat aspack_v212_v242 behavioral1/files/0x0008000000012312-114.dat aspack_v212_v242 behavioral1/files/0x0008000000012312-116.dat aspack_v212_v242 behavioral1/files/0x0008000000012312-134.dat aspack_v212_v242 -
Executes dropped EXE 7 IoCs
pid Process 1068 rutserv.exe 1888 rutserv.exe 984 rutserv.exe 1900 rutserv.exe 1588 rfusclient.exe 752 rfusclient.exe 1352 rfusclient.exe -
resource yara_rule behavioral1/files/0x000800000001231a-107.dat upx behavioral1/files/0x000800000001231f-108.dat upx -
Loads dropped DLL 3 IoCs
pid Process 2016 cmd.exe 1900 rutserv.exe 1900 rutserv.exe -
Drops file in Program Files directory 16 IoCs
description ioc Process File opened for modification C:\Program Files\servers\rutserv.exe 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\vp8decoder.dll 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\vp8encoder.dll 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\install.vbs 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\install.bat 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\rfusclient.exe 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\vp8decoder.dll 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\regedit.reg 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\install.bat 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\install.vbs 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\regedit.reg 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\rfusclient.exe 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\rutserv.exe 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\vp8encoder.dll 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\__tmp_rar_sfx_access_check_7076189 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Delays execution with timeout.exe 1 IoCs
pid Process 1504 timeout.exe -
Kills process with taskkill 2 IoCs
pid Process 1756 taskkill.exe 584 taskkill.exe -
Runs .reg file with regedit 1 IoCs
pid Process 1824 regedit.exe -
Suspicious behavior: EnumeratesProcesses 13 IoCs
pid Process 1068 rutserv.exe 1068 rutserv.exe 1068 rutserv.exe 1068 rutserv.exe 1888 rutserv.exe 1888 rutserv.exe 984 rutserv.exe 984 rutserv.exe 1900 rutserv.exe 1900 rutserv.exe 1900 rutserv.exe 1900 rutserv.exe 752 rfusclient.exe -
Suspicious behavior: SetClipboardViewer 1 IoCs
pid Process 1352 rfusclient.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 1756 taskkill.exe Token: SeDebugPrivilege 584 taskkill.exe Token: SeDebugPrivilege 1068 rutserv.exe Token: SeDebugPrivilege 984 rutserv.exe Token: SeTakeOwnershipPrivilege 1900 rutserv.exe Token: SeTcbPrivilege 1900 rutserv.exe Token: SeTcbPrivilege 1900 rutserv.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1068 rutserv.exe 1888 rutserv.exe 984 rutserv.exe 1900 rutserv.exe -
Suspicious use of WriteProcessMemory 55 IoCs
description pid Process procid_target PID 1564 wrote to memory of 992 1564 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe 27 PID 1564 wrote to memory of 992 1564 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe 27 PID 1564 wrote to memory of 992 1564 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe 27 PID 1564 wrote to memory of 992 1564 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe 27 PID 992 wrote to memory of 2016 992 WScript.exe 28 PID 992 wrote to memory of 2016 992 WScript.exe 28 PID 992 wrote to memory of 2016 992 WScript.exe 28 PID 992 wrote to memory of 2016 992 WScript.exe 28 PID 992 wrote to memory of 2016 992 WScript.exe 28 PID 992 wrote to memory of 2016 992 WScript.exe 28 PID 992 wrote to memory of 2016 992 WScript.exe 28 PID 2016 wrote to memory of 1756 2016 cmd.exe 30 PID 2016 wrote to memory of 1756 2016 cmd.exe 30 PID 2016 wrote to memory of 1756 2016 cmd.exe 30 PID 2016 wrote to memory of 1756 2016 cmd.exe 30 PID 2016 wrote to memory of 584 2016 cmd.exe 32 PID 2016 wrote to memory of 584 2016 cmd.exe 32 PID 2016 wrote to memory of 584 2016 cmd.exe 32 PID 2016 wrote to memory of 584 2016 cmd.exe 32 PID 2016 wrote to memory of 1508 2016 cmd.exe 33 PID 2016 wrote to memory of 1508 2016 cmd.exe 33 PID 2016 wrote to memory of 1508 2016 cmd.exe 33 PID 2016 wrote to memory of 1508 2016 cmd.exe 33 PID 2016 wrote to memory of 1824 2016 cmd.exe 34 PID 2016 wrote to memory of 1824 2016 cmd.exe 34 PID 2016 wrote to memory of 1824 2016 cmd.exe 34 PID 2016 wrote to memory of 1824 2016 cmd.exe 34 PID 2016 wrote to memory of 1504 2016 cmd.exe 35 PID 2016 wrote to memory of 1504 2016 cmd.exe 35 PID 2016 wrote to memory of 1504 2016 cmd.exe 35 PID 2016 wrote to memory of 1504 2016 cmd.exe 35 PID 2016 wrote to memory of 1068 2016 cmd.exe 36 PID 2016 wrote to memory of 1068 2016 cmd.exe 36 PID 2016 wrote to memory of 1068 2016 cmd.exe 36 PID 2016 wrote to memory of 1068 2016 cmd.exe 36 PID 2016 wrote to memory of 1888 2016 cmd.exe 37 PID 2016 wrote to memory of 1888 2016 cmd.exe 37 PID 2016 wrote to memory of 1888 2016 cmd.exe 37 PID 2016 wrote to memory of 1888 2016 cmd.exe 37 PID 2016 wrote to memory of 984 2016 cmd.exe 38 PID 2016 wrote to memory of 984 2016 cmd.exe 38 PID 2016 wrote to memory of 984 2016 cmd.exe 38 PID 2016 wrote to memory of 984 2016 cmd.exe 38 PID 1900 wrote to memory of 752 1900 rutserv.exe 40 PID 1900 wrote to memory of 752 1900 rutserv.exe 40 PID 1900 wrote to memory of 752 1900 rutserv.exe 40 PID 1900 wrote to memory of 752 1900 rutserv.exe 40 PID 1900 wrote to memory of 1588 1900 rutserv.exe 41 PID 1900 wrote to memory of 1588 1900 rutserv.exe 41 PID 1900 wrote to memory of 1588 1900 rutserv.exe 41 PID 1900 wrote to memory of 1588 1900 rutserv.exe 41 PID 752 wrote to memory of 1352 752 rfusclient.exe 42 PID 752 wrote to memory of 1352 752 rfusclient.exe 42 PID 752 wrote to memory of 1352 752 rfusclient.exe 42 PID 752 wrote to memory of 1352 752 rfusclient.exe 42
Processes
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C:\Users\Admin\AppData\Local\Temp\35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe"C:\Users\Admin\AppData\Local\Temp\35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1564 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Program Files\servers\install.vbs"2⤵
- Suspicious use of WriteProcessMemory
PID:992 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Program Files\servers\install.bat" "3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rutserv.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1756
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rfusclient.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:584
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C:\Windows\SysWOW64\reg.exereg delete "HKLM\SYSTEM\Remote Manipulator System" /f4⤵PID:1508
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C:\Windows\SysWOW64\regedit.exeregedit /s "regedit.reg"4⤵
- Runs .reg file with regedit
PID:1824
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C:\Windows\SysWOW64\timeout.exetimeout 24⤵
- Delays execution with timeout.exe
PID:1504
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C:\Program Files\servers\rutserv.exerutserv.exe /silentinstall4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1068
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C:\Program Files\servers\rutserv.exerutserv.exe /firewall4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1888
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C:\Program Files\servers\rutserv.exerutserv.exe /start4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:984
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C:\Program Files\servers\rutserv.exe"C:\Program Files\servers\rutserv.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1900 -
C:\Program Files\servers\rfusclient.exe"C:\Program Files\servers\rfusclient.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:752 -
C:\Program Files\servers\rfusclient.exe"C:\Program Files\servers\rfusclient.exe" /tray3⤵
- Executes dropped EXE
- Suspicious behavior: SetClipboardViewer
PID:1352
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C:\Program Files\servers\rfusclient.exe"C:\Program Files\servers\rfusclient.exe" /tray2⤵
- Executes dropped EXE
PID:1588
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
304B
MD5b48dac7ad07938601db8903e8c7156d2
SHA124f71c0e377e624a58ce136c4227e0224f0ddc27
SHA256de2544dd3d7b05965d0b1a454438af449372469d41678046a2dd7cd7f60f5a19
SHA51204b0843a6d0cf545c0ed26fea99f5d94e554f8f522b4eef66bde979e6e2b673c641ac246e8157126126f7e4884935494934545d5b37912d607e2832df1054859
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Filesize
117B
MD565fc32766a238ff3e95984e325357dbb
SHA13ac16a2648410be8aa75f3e2817fbf69bb0e8922
SHA256a7b067e9e4d44efe579c7cdb1e847d61af2323d3d73c6fffb22e178ae476f420
SHA512621e81fc2d0f9dd92413481864638a140bee94c7dbd31f944826b21bd6ad6b8a59e63de9f7f0025cffc0efb7f9975dde77f523510ee23ada62c152a63a22f608
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Filesize
11KB
MD51af884daf80a198ffbf15c9b8dfc6c22
SHA12e739eaf745589120d7ab7cc84620dbd23c6bc34
SHA256cd8c505eb4871be9ed511d2d3edfc0da66a6c539c64179628a491168054daf8c
SHA512925c854ea40c890e49cbcf77a41ce6eadf81dc05f8256bbf34860ba00c29b26fa6a5deaf9431f0b6d9639fcae557f634b0ceb7e0d5b7c552095121328e31b9dc
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Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
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Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
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Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
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Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
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Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
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Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
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Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
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Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
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Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
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Filesize
155KB
MD588318158527985702f61d169434a4940
SHA13cc751ba256b5727eb0713aad6f554ff1e7bca57
SHA2564c04d7968a9fe9d9258968d3a722263334bbf5f8af972f206a71f17fa293aa74
SHA5125d88562b6c6d2a5b14390512712819238cd838914f7c48a27f017827cb9b825c24ff05a30333427acec93cd836e8f04158b86d17e6ac3dd62c55b2e2ff4e2aff
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Filesize
593KB
MD56298c0af3d1d563834a218a9cc9f54bd
SHA10185cd591e454ed072e5a5077b25c612f6849dc9
SHA25681af82019d9f45a697a8ca1788f2c5c0205af9892efd94879dedf4bc06db4172
SHA512389d89053689537cdb582c0e8a7951a84549f0c36484db4346c31bdbe7cb93141f6a354069eb13e550297dc8ec35cd6899746e0c16abc876a0fe542cc450fffe
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Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
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Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
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Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0