Analysis
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max time kernel
148s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
24-05-2022 15:14
Static task
static1
Behavioral task
behavioral1
Sample
7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe
Resource
win10v2004-20220414-en
General
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Target
7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe
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Size
4.0MB
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MD5
9da10281d6078fd4e8e04dfbd3f6c309
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SHA1
1b5e3cdadf6470017a66c676a3068c19fecd98f7
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SHA256
7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b
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SHA512
b81de310254faa6aad5a94992c394e074623d4ffb8a719969da808532fb9f9aa2c0a4138bace52462d568835916afee96c8147ce22f4edb6cae6ce70cabad18a
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/0x0007000000012736-105.dat acprotect behavioral1/files/0x0007000000012718-104.dat acprotect -
resource yara_rule behavioral1/files/0x00070000000126e1-67.dat aspack_v212_v242 behavioral1/files/0x00070000000126e1-68.dat aspack_v212_v242 behavioral1/files/0x00070000000126e1-70.dat aspack_v212_v242 behavioral1/files/0x00070000000126e1-78.dat aspack_v212_v242 behavioral1/files/0x00070000000126e1-80.dat aspack_v212_v242 behavioral1/files/0x00070000000126e1-88.dat aspack_v212_v242 behavioral1/files/0x00070000000126e1-90.dat aspack_v212_v242 behavioral1/files/0x00070000000126e1-97.dat aspack_v212_v242 behavioral1/files/0x00080000000126bc-106.dat aspack_v212_v242 behavioral1/files/0x00080000000126bc-107.dat aspack_v212_v242 behavioral1/files/0x00080000000126bc-111.dat aspack_v212_v242 behavioral1/files/0x00080000000126bc-110.dat aspack_v212_v242 behavioral1/files/0x00080000000126bc-126.dat aspack_v212_v242 -
Executes dropped EXE 7 IoCs
pid Process 1388 rutserv.exe 1956 rutserv.exe 520 rutserv.exe 1504 rutserv.exe 972 rfusclient.exe 1108 rfusclient.exe 1340 rfusclient.exe -
resource yara_rule behavioral1/files/0x0007000000012736-105.dat upx behavioral1/files/0x0007000000012718-104.dat upx -
Loads dropped DLL 4 IoCs
pid Process 2032 cmd.exe 2032 cmd.exe 2032 cmd.exe 1504 rutserv.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 1456 timeout.exe -
Kills process with taskkill 2 IoCs
pid Process 1988 taskkill.exe 1720 taskkill.exe -
Runs .reg file with regedit 1 IoCs
pid Process 1340 regedit.exe -
Suspicious behavior: EnumeratesProcesses 13 IoCs
pid Process 1388 rutserv.exe 1388 rutserv.exe 1388 rutserv.exe 1388 rutserv.exe 1956 rutserv.exe 1956 rutserv.exe 520 rutserv.exe 520 rutserv.exe 1504 rutserv.exe 1504 rutserv.exe 1504 rutserv.exe 1504 rutserv.exe 972 rfusclient.exe -
Suspicious behavior: SetClipboardViewer 1 IoCs
pid Process 1340 rfusclient.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 1988 taskkill.exe Token: SeDebugPrivilege 1720 taskkill.exe Token: SeDebugPrivilege 1388 rutserv.exe Token: SeDebugPrivilege 520 rutserv.exe Token: SeTakeOwnershipPrivilege 1504 rutserv.exe Token: SeTcbPrivilege 1504 rutserv.exe Token: SeTcbPrivilege 1504 rutserv.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1388 rutserv.exe 1956 rutserv.exe 520 rutserv.exe 1504 rutserv.exe -
Suspicious use of WriteProcessMemory 55 IoCs
description pid Process procid_target PID 1784 wrote to memory of 1356 1784 7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe 27 PID 1784 wrote to memory of 1356 1784 7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe 27 PID 1784 wrote to memory of 1356 1784 7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe 27 PID 1784 wrote to memory of 1356 1784 7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe 27 PID 1356 wrote to memory of 2032 1356 WScript.exe 28 PID 1356 wrote to memory of 2032 1356 WScript.exe 28 PID 1356 wrote to memory of 2032 1356 WScript.exe 28 PID 1356 wrote to memory of 2032 1356 WScript.exe 28 PID 1356 wrote to memory of 2032 1356 WScript.exe 28 PID 1356 wrote to memory of 2032 1356 WScript.exe 28 PID 1356 wrote to memory of 2032 1356 WScript.exe 28 PID 2032 wrote to memory of 1988 2032 cmd.exe 30 PID 2032 wrote to memory of 1988 2032 cmd.exe 30 PID 2032 wrote to memory of 1988 2032 cmd.exe 30 PID 2032 wrote to memory of 1988 2032 cmd.exe 30 PID 2032 wrote to memory of 1720 2032 cmd.exe 32 PID 2032 wrote to memory of 1720 2032 cmd.exe 32 PID 2032 wrote to memory of 1720 2032 cmd.exe 32 PID 2032 wrote to memory of 1720 2032 cmd.exe 32 PID 2032 wrote to memory of 684 2032 cmd.exe 33 PID 2032 wrote to memory of 684 2032 cmd.exe 33 PID 2032 wrote to memory of 684 2032 cmd.exe 33 PID 2032 wrote to memory of 684 2032 cmd.exe 33 PID 2032 wrote to memory of 1340 2032 cmd.exe 34 PID 2032 wrote to memory of 1340 2032 cmd.exe 34 PID 2032 wrote to memory of 1340 2032 cmd.exe 34 PID 2032 wrote to memory of 1340 2032 cmd.exe 34 PID 2032 wrote to memory of 1456 2032 cmd.exe 35 PID 2032 wrote to memory of 1456 2032 cmd.exe 35 PID 2032 wrote to memory of 1456 2032 cmd.exe 35 PID 2032 wrote to memory of 1456 2032 cmd.exe 35 PID 2032 wrote to memory of 1388 2032 cmd.exe 36 PID 2032 wrote to memory of 1388 2032 cmd.exe 36 PID 2032 wrote to memory of 1388 2032 cmd.exe 36 PID 2032 wrote to memory of 1388 2032 cmd.exe 36 PID 2032 wrote to memory of 1956 2032 cmd.exe 37 PID 2032 wrote to memory of 1956 2032 cmd.exe 37 PID 2032 wrote to memory of 1956 2032 cmd.exe 37 PID 2032 wrote to memory of 1956 2032 cmd.exe 37 PID 2032 wrote to memory of 520 2032 cmd.exe 38 PID 2032 wrote to memory of 520 2032 cmd.exe 38 PID 2032 wrote to memory of 520 2032 cmd.exe 38 PID 2032 wrote to memory of 520 2032 cmd.exe 38 PID 1504 wrote to memory of 972 1504 rutserv.exe 40 PID 1504 wrote to memory of 972 1504 rutserv.exe 40 PID 1504 wrote to memory of 972 1504 rutserv.exe 40 PID 1504 wrote to memory of 972 1504 rutserv.exe 40 PID 1504 wrote to memory of 1108 1504 rutserv.exe 41 PID 1504 wrote to memory of 1108 1504 rutserv.exe 41 PID 1504 wrote to memory of 1108 1504 rutserv.exe 41 PID 1504 wrote to memory of 1108 1504 rutserv.exe 41 PID 972 wrote to memory of 1340 972 rfusclient.exe 42 PID 972 wrote to memory of 1340 972 rfusclient.exe 42 PID 972 wrote to memory of 1340 972 rfusclient.exe 42 PID 972 wrote to memory of 1340 972 rfusclient.exe 42
Processes
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C:\Users\Admin\AppData\Local\Temp\7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe"C:\Users\Admin\AppData\Local\Temp\7c8f115be9c2de2a4879717b34ce0d9ccff43be5f3764c84dfabf2cd7ed57f0b.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1784 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"2⤵
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rutserv.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1988
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rfusclient.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1720
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C:\Windows\SysWOW64\reg.exereg delete "HKLM\SYSTEM\Remote Manipulator System" /f4⤵PID:684
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C:\Windows\SysWOW64\regedit.exeregedit /s "regedit.reg"4⤵
- Runs .reg file with regedit
PID:1340
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C:\Windows\SysWOW64\timeout.exetimeout 24⤵
- Delays execution with timeout.exe
PID:1456
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C:\Users\Admin\AppData\Local\Temp\rutserv.exerutserv.exe /silentinstall4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1388
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C:\Users\Admin\AppData\Local\Temp\rutserv.exerutserv.exe /firewall4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1956
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C:\Users\Admin\AppData\Local\Temp\rutserv.exerutserv.exe /start4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:520
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C:\Users\Admin\AppData\Local\Temp\rutserv.exeC:\Users\Admin\AppData\Local\Temp\rutserv.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Users\Admin\AppData\Local\Temp\rfusclient.exeC:\Users\Admin\AppData\Local\Temp\rfusclient.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:972 -
C:\Users\Admin\AppData\Local\Temp\rfusclient.exeC:\Users\Admin\AppData\Local\Temp\rfusclient.exe /tray3⤵
- Executes dropped EXE
- Suspicious behavior: SetClipboardViewer
PID:1340
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C:\Users\Admin\AppData\Local\Temp\rfusclient.exeC:\Users\Admin\AppData\Local\Temp\rfusclient.exe /tray2⤵
- Executes dropped EXE
PID:1108
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
480B
MD599db27d776e103cad354b531ee1f20b9
SHA10b82d146df8528f66d1d14756f211fd3a8b1b91a
SHA256240020a1a1941d1455135b5cb134e502a13b148be16cbb1552482aa03c29f8f3
SHA512bc2ed33495c0a752397b2f1b9b7ba65f94ea5be82dde74c618342c83b68f1b92a4783b672cd427843533799e1af0875e0fd000b12236852e9e2fa93005d7ac69
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Filesize
117B
MD565fc32766a238ff3e95984e325357dbb
SHA13ac16a2648410be8aa75f3e2817fbf69bb0e8922
SHA256a7b067e9e4d44efe579c7cdb1e847d61af2323d3d73c6fffb22e178ae476f420
SHA512621e81fc2d0f9dd92413481864638a140bee94c7dbd31f944826b21bd6ad6b8a59e63de9f7f0025cffc0efb7f9975dde77f523510ee23ada62c152a63a22f608
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Filesize
11KB
MD527ed5e53a89e240133c674b2eb5c4b62
SHA1f4014f9c75de2be2d31c61163682f796c52d4e8e
SHA2564dd0eb671cbd6025acaac0c3aefb51c019160c899636fe73f77f93d0301016af
SHA5129f50b8f57f9aba3e09ac0f66ebc9892d64fd42e7921ac7c5ba8e0618e3fa259c9ce9e75e8cb0233776ab385be8e17b928960fc37a7ff8102f7ed961982937c7e
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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
1.7MB
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