Analysis
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max time kernel
151s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
25-05-2022 00:15
Static task
static1
Behavioral task
behavioral1
Sample
7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe
Resource
win7-20220414-en
General
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Target
7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe
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Size
4.0MB
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MD5
a4943209e97a114452bf0153cbdcddcc
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SHA1
c439cb85fe61ced0a23bc1935de5a2c3a293c967
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SHA256
7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70
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SHA512
508b7a80f45cdfa62a09b43ade487895fc4e54f30b87dffade2a6c9ec167cd2895adb4deacce4990652b83cce72ba5e7771e7df75c81e0c608ec673de7a25112
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/0x000600000001411a-102.dat acprotect behavioral1/files/0x0006000000014138-103.dat acprotect -
resource yara_rule behavioral1/files/0x0008000000013a18-70.dat aspack_v212_v242 behavioral1/files/0x0008000000013a18-68.dat aspack_v212_v242 behavioral1/files/0x0008000000013a18-67.dat aspack_v212_v242 behavioral1/files/0x0008000000013a18-79.dat aspack_v212_v242 behavioral1/files/0x0008000000013a18-88.dat aspack_v212_v242 behavioral1/files/0x0008000000013a18-95.dat aspack_v212_v242 behavioral1/files/0x0009000000013475-104.dat aspack_v212_v242 behavioral1/files/0x0009000000013475-105.dat aspack_v212_v242 behavioral1/files/0x0009000000013475-107.dat aspack_v212_v242 behavioral1/files/0x0009000000013475-109.dat aspack_v212_v242 behavioral1/files/0x0009000000013475-124.dat aspack_v212_v242 -
Executes dropped EXE 7 IoCs
pid Process 1132 rutserv.exe 1956 rutserv.exe 2016 rutserv.exe 396 rutserv.exe 1056 rfusclient.exe 316 rfusclient.exe 1528 rfusclient.exe -
resource yara_rule behavioral1/files/0x000600000001411a-102.dat upx behavioral1/files/0x0006000000014138-103.dat upx -
Loads dropped DLL 2 IoCs
pid Process 2020 cmd.exe 396 rutserv.exe -
Drops file in Program Files directory 15 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\rfusclient.exe 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File created C:\Program Files (x86)\rutserv.exe 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File opened for modification C:\Program Files (x86)\vp8decoder.dll 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File created C:\Program Files (x86)\regedit.reg 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File created C:\Program Files (x86)\install.vbs 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File created C:\Program Files (x86)\rfusclient.exe 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File opened for modification C:\Program Files (x86)\rutserv.exe 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File opened for modification C:\Program Files (x86)\install.vbs 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File created C:\Program Files (x86)\install.bat 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File created C:\Program Files (x86)\vp8encoder.dll 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File opened for modification C:\Program Files (x86)\install.bat 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File created C:\Program Files (x86)\vp8decoder.dll 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File opened for modification C:\Program Files (x86)\vp8encoder.dll 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File opened for modification C:\Program Files (x86)\regedit.reg 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe File created C:\Program Files (x86)\__tmp_rar_sfx_access_check_7083927 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.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 824 timeout.exe -
Kills process with taskkill 2 IoCs
pid Process 2040 taskkill.exe 1996 taskkill.exe -
Runs .reg file with regedit 1 IoCs
pid Process 1784 regedit.exe -
Suspicious behavior: EnumeratesProcesses 13 IoCs
pid Process 1132 rutserv.exe 1132 rutserv.exe 1132 rutserv.exe 1132 rutserv.exe 1956 rutserv.exe 1956 rutserv.exe 2016 rutserv.exe 2016 rutserv.exe 396 rutserv.exe 396 rutserv.exe 396 rutserv.exe 396 rutserv.exe 1056 rfusclient.exe -
Suspicious behavior: SetClipboardViewer 1 IoCs
pid Process 1528 rfusclient.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 2040 taskkill.exe Token: SeDebugPrivilege 1996 taskkill.exe Token: SeDebugPrivilege 1132 rutserv.exe Token: SeDebugPrivilege 2016 rutserv.exe Token: SeTakeOwnershipPrivilege 396 rutserv.exe Token: SeTcbPrivilege 396 rutserv.exe Token: SeTcbPrivilege 396 rutserv.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1132 rutserv.exe 1956 rutserv.exe 2016 rutserv.exe 396 rutserv.exe -
Suspicious use of WriteProcessMemory 55 IoCs
description pid Process procid_target PID 1672 wrote to memory of 1788 1672 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe 27 PID 1672 wrote to memory of 1788 1672 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe 27 PID 1672 wrote to memory of 1788 1672 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe 27 PID 1672 wrote to memory of 1788 1672 7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe 27 PID 1788 wrote to memory of 2020 1788 WScript.exe 28 PID 1788 wrote to memory of 2020 1788 WScript.exe 28 PID 1788 wrote to memory of 2020 1788 WScript.exe 28 PID 1788 wrote to memory of 2020 1788 WScript.exe 28 PID 1788 wrote to memory of 2020 1788 WScript.exe 28 PID 1788 wrote to memory of 2020 1788 WScript.exe 28 PID 1788 wrote to memory of 2020 1788 WScript.exe 28 PID 2020 wrote to memory of 2040 2020 cmd.exe 30 PID 2020 wrote to memory of 2040 2020 cmd.exe 30 PID 2020 wrote to memory of 2040 2020 cmd.exe 30 PID 2020 wrote to memory of 2040 2020 cmd.exe 30 PID 2020 wrote to memory of 1996 2020 cmd.exe 32 PID 2020 wrote to memory of 1996 2020 cmd.exe 32 PID 2020 wrote to memory of 1996 2020 cmd.exe 32 PID 2020 wrote to memory of 1996 2020 cmd.exe 32 PID 2020 wrote to memory of 828 2020 cmd.exe 33 PID 2020 wrote to memory of 828 2020 cmd.exe 33 PID 2020 wrote to memory of 828 2020 cmd.exe 33 PID 2020 wrote to memory of 828 2020 cmd.exe 33 PID 2020 wrote to memory of 1784 2020 cmd.exe 34 PID 2020 wrote to memory of 1784 2020 cmd.exe 34 PID 2020 wrote to memory of 1784 2020 cmd.exe 34 PID 2020 wrote to memory of 1784 2020 cmd.exe 34 PID 2020 wrote to memory of 824 2020 cmd.exe 35 PID 2020 wrote to memory of 824 2020 cmd.exe 35 PID 2020 wrote to memory of 824 2020 cmd.exe 35 PID 2020 wrote to memory of 824 2020 cmd.exe 35 PID 2020 wrote to memory of 1132 2020 cmd.exe 36 PID 2020 wrote to memory of 1132 2020 cmd.exe 36 PID 2020 wrote to memory of 1132 2020 cmd.exe 36 PID 2020 wrote to memory of 1132 2020 cmd.exe 36 PID 2020 wrote to memory of 1956 2020 cmd.exe 37 PID 2020 wrote to memory of 1956 2020 cmd.exe 37 PID 2020 wrote to memory of 1956 2020 cmd.exe 37 PID 2020 wrote to memory of 1956 2020 cmd.exe 37 PID 2020 wrote to memory of 2016 2020 cmd.exe 38 PID 2020 wrote to memory of 2016 2020 cmd.exe 38 PID 2020 wrote to memory of 2016 2020 cmd.exe 38 PID 2020 wrote to memory of 2016 2020 cmd.exe 38 PID 396 wrote to memory of 1056 396 rutserv.exe 40 PID 396 wrote to memory of 1056 396 rutserv.exe 40 PID 396 wrote to memory of 1056 396 rutserv.exe 40 PID 396 wrote to memory of 1056 396 rutserv.exe 40 PID 396 wrote to memory of 316 396 rutserv.exe 41 PID 396 wrote to memory of 316 396 rutserv.exe 41 PID 396 wrote to memory of 316 396 rutserv.exe 41 PID 396 wrote to memory of 316 396 rutserv.exe 41 PID 1056 wrote to memory of 1528 1056 rfusclient.exe 42 PID 1056 wrote to memory of 1528 1056 rfusclient.exe 42 PID 1056 wrote to memory of 1528 1056 rfusclient.exe 42 PID 1056 wrote to memory of 1528 1056 rfusclient.exe 42
Processes
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C:\Users\Admin\AppData\Local\Temp\7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe"C:\Users\Admin\AppData\Local\Temp\7a8938dcb30e1a24c260707e4b10e3f293c875a3dc7ed9a53b50ea5c9c3a0e70.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Program Files (x86)\install.vbs"2⤵
- Suspicious use of WriteProcessMemory
PID:1788 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Program Files (x86)\install.bat" "3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rutserv.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2040
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rfusclient.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1996
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C:\Windows\SysWOW64\reg.exereg delete "HKLM\SYSTEM\Remote Manipulator System" /f4⤵PID:828
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C:\Windows\SysWOW64\regedit.exeregedit /s "regedit.reg"4⤵
- Runs .reg file with regedit
PID:1784
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C:\Windows\SysWOW64\timeout.exetimeout 24⤵
- Delays execution with timeout.exe
PID:824
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C:\Program Files (x86)\rutserv.exerutserv.exe /silentinstall4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1132
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C:\Program Files (x86)\rutserv.exerutserv.exe /firewall4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1956
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C:\Program Files (x86)\rutserv.exerutserv.exe /start4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2016
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C:\Program Files (x86)\rutserv.exe"C:\Program Files (x86)\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:396 -
C:\Program Files (x86)\rfusclient.exe"C:\Program Files (x86)\rfusclient.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1056 -
C:\Program Files (x86)\rfusclient.exe"C:\Program Files (x86)\rfusclient.exe" /tray3⤵
- Executes dropped EXE
- Suspicious behavior: SetClipboardViewer
PID:1528
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C:\Program Files (x86)\rfusclient.exe"C:\Program Files (x86)\rfusclient.exe" /tray2⤵
- Executes dropped EXE
PID:316
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
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
MD522107f45bfdda71303bc93395e7b97f7
SHA1710e4dc96fcb143af3719c55b29cbc700d669c83
SHA25695cfd99a23decb9a9baf90b7a0fd7552e93bf27172c66a15c965e8cb7c94256f
SHA51215c148d809d39ef30c150983c03aa0a3035eea1957969316ca533c48959a54449705ecd00645e8c21daa8096632de6d4f67427a8ead79268bce1a5aa6236d647
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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