Analysis
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max time kernel
144s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
26-09-2023 13:55
Static task
static1
Behavioral task
behavioral1
Sample
docfra20230925.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
docfra20230925.exe
Resource
win10v2004-20230915-en
General
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Target
docfra20230925.exe
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Size
1.3MB
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MD5
5d86018377d9cf83e6e2c08fd9fd60d3
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SHA1
3ae1897f221aa5893f8aff0bfd79666f8ba2236f
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SHA256
1c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3
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SHA512
d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7
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SSDEEP
24576:YkzJBUqX3qbkN6s2P2VElQJyNmXy76p7ZUgSb2H8KZ/L2zZnJf+MCFL3:YkNBH16sVOy0NmXIgSudT2teL
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 8 IoCs
Processes:
resource yara_rule behavioral1/memory/2636-10-0x0000000000400000-0x0000000000466000-memory.dmp family_snakekeylogger behavioral1/memory/2636-14-0x0000000000400000-0x0000000000466000-memory.dmp family_snakekeylogger behavioral1/memory/2636-11-0x0000000000400000-0x0000000000466000-memory.dmp family_snakekeylogger behavioral1/memory/2636-17-0x0000000000400000-0x0000000000466000-memory.dmp family_snakekeylogger behavioral1/memory/2636-19-0x0000000000400000-0x0000000000466000-memory.dmp family_snakekeylogger behavioral1/memory/2136-95-0x0000000000220000-0x0000000000286000-memory.dmp family_snakekeylogger behavioral1/memory/2136-99-0x0000000000220000-0x0000000000286000-memory.dmp family_snakekeylogger behavioral1/memory/2136-102-0x0000000000220000-0x0000000000286000-memory.dmp family_snakekeylogger -
Executes dropped EXE 6 IoCs
Processes:
frankdan.exesvchost.exesvchost.exesvchost.exesvchost.exesvchost.exepid process 1372 frankdan.exe 2560 svchost.exe 740 svchost.exe 884 svchost.exe 2136 svchost.exe 1696 svchost.exe -
Loads dropped DLL 3 IoCs
Processes:
docfra20230925.exedocfra20230925.exesvchost.exepid process 2636 docfra20230925.exe 2404 docfra20230925.exe 2560 svchost.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
frankdan.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 frankdan.exe Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 frankdan.exe Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 frankdan.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 2 api.ipify.org 3 api.ipify.org -
Suspicious use of SetThreadContext 3 IoCs
Processes:
docfra20230925.exesvchost.exesvchost.exedescription pid process target process PID 2404 set thread context of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2560 set thread context of 884 2560 svchost.exe svchost.exe PID 740 set thread context of 2136 740 svchost.exe svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 2180 schtasks.exe 2184 schtasks.exe 2132 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
frankdan.exepid process 1372 frankdan.exe 1372 frankdan.exe -
Suspicious behavior: SetClipboardViewer 1 IoCs
Processes:
svchost.exepid process 884 svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
frankdan.exedescription pid process Token: SeDebugPrivilege 1372 frankdan.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
frankdan.exepid process 1372 frankdan.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
docfra20230925.exedocfra20230925.execmd.exetaskeng.exesvchost.execmd.exesvchost.exedescription pid process target process PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2404 wrote to memory of 2636 2404 docfra20230925.exe docfra20230925.exe PID 2636 wrote to memory of 1372 2636 docfra20230925.exe frankdan.exe PID 2636 wrote to memory of 1372 2636 docfra20230925.exe frankdan.exe PID 2636 wrote to memory of 1372 2636 docfra20230925.exe frankdan.exe PID 2636 wrote to memory of 1372 2636 docfra20230925.exe frankdan.exe PID 2404 wrote to memory of 2560 2404 docfra20230925.exe svchost.exe PID 2404 wrote to memory of 2560 2404 docfra20230925.exe svchost.exe PID 2404 wrote to memory of 2560 2404 docfra20230925.exe svchost.exe PID 2404 wrote to memory of 2560 2404 docfra20230925.exe svchost.exe PID 2404 wrote to memory of 1388 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 1388 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 1388 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 1388 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 2912 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 2912 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 2912 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 2912 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 2892 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 2892 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 2892 2404 docfra20230925.exe cmd.exe PID 2404 wrote to memory of 2892 2404 docfra20230925.exe cmd.exe PID 2912 wrote to memory of 2132 2912 cmd.exe schtasks.exe PID 2912 wrote to memory of 2132 2912 cmd.exe schtasks.exe PID 2912 wrote to memory of 2132 2912 cmd.exe schtasks.exe PID 2912 wrote to memory of 2132 2912 cmd.exe schtasks.exe PID 2788 wrote to memory of 740 2788 taskeng.exe svchost.exe PID 2788 wrote to memory of 740 2788 taskeng.exe svchost.exe PID 2788 wrote to memory of 740 2788 taskeng.exe svchost.exe PID 2788 wrote to memory of 740 2788 taskeng.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 884 2560 svchost.exe svchost.exe PID 2560 wrote to memory of 1632 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1632 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1632 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1632 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1640 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1640 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1640 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1640 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1948 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1948 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1948 2560 svchost.exe cmd.exe PID 2560 wrote to memory of 1948 2560 svchost.exe cmd.exe PID 1640 wrote to memory of 2180 1640 cmd.exe schtasks.exe PID 1640 wrote to memory of 2180 1640 cmd.exe schtasks.exe PID 1640 wrote to memory of 2180 1640 cmd.exe schtasks.exe PID 1640 wrote to memory of 2180 1640 cmd.exe schtasks.exe PID 740 wrote to memory of 2136 740 svchost.exe svchost.exe PID 740 wrote to memory of 2136 740 svchost.exe svchost.exe -
outlook_office_path 1 IoCs
Processes:
frankdan.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 frankdan.exe -
outlook_win_path 1 IoCs
Processes:
frankdan.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 frankdan.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe"C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2404 -
C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe"C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2636 -
C:\Users\Admin\AppData\Roaming\frankdan.exe"C:\Users\Admin\AppData\Roaming\frankdan.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1372 -
C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2560 -
C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: SetClipboardViewer
PID:884 -
C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f3⤵
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f4⤵
- Creates scheduled task(s)
PID:2180 -
C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"3⤵PID:1948
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"3⤵PID:1632
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"2⤵PID:1388
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
PID:2912 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f3⤵
- Creates scheduled task(s)
PID:2132 -
C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"2⤵PID:2892
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C:\Windows\system32\taskeng.exetaskeng.exe {52012DB3-A57F-4BCF-BE93-1EC2DD695A82} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Users\Admin\AppData\Roaming\svchost\svchost.exeC:\Users\Admin\AppData\Roaming\svchost\svchost.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:740 -
C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"3⤵
- Executes dropped EXE
PID:2136 -
C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"3⤵PID:1896
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"3⤵PID:2032
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f3⤵PID:1816
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f4⤵
- Creates scheduled task(s)
PID:2184 -
C:\Users\Admin\AppData\Roaming\svchost\svchost.exeC:\Users\Admin\AppData\Roaming\svchost\svchost.exe2⤵
- Executes dropped EXE
PID:1696
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
621KB
MD5ed9d91fe584d5109d4067734ac452753
SHA1c277e57866833509d94787fc6f4d634a2714825d
SHA2563629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
SHA512a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a
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Filesize
621KB
MD5ed9d91fe584d5109d4067734ac452753
SHA1c277e57866833509d94787fc6f4d634a2714825d
SHA2563629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
SHA512a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a
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Filesize
621KB
MD5ed9d91fe584d5109d4067734ac452753
SHA1c277e57866833509d94787fc6f4d634a2714825d
SHA2563629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
SHA512a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a
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Filesize
621KB
MD5ed9d91fe584d5109d4067734ac452753
SHA1c277e57866833509d94787fc6f4d634a2714825d
SHA2563629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
SHA512a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a
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Filesize
247KB
MD5e254aed552568e13df13e204adcb8011
SHA118deaf67ac2a3ae2be3d3e620f650cb6edcba92a
SHA25623b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5
SHA512f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f
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Filesize
247KB
MD5e254aed552568e13df13e204adcb8011
SHA118deaf67ac2a3ae2be3d3e620f650cb6edcba92a
SHA25623b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5
SHA512f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f
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Filesize
1.3MB
MD55d86018377d9cf83e6e2c08fd9fd60d3
SHA13ae1897f221aa5893f8aff0bfd79666f8ba2236f
SHA2561c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3
SHA512d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7
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Filesize
1.3MB
MD55d86018377d9cf83e6e2c08fd9fd60d3
SHA13ae1897f221aa5893f8aff0bfd79666f8ba2236f
SHA2561c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3
SHA512d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7
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Filesize
1.3MB
MD55d86018377d9cf83e6e2c08fd9fd60d3
SHA13ae1897f221aa5893f8aff0bfd79666f8ba2236f
SHA2561c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3
SHA512d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7
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Filesize
1.3MB
MD55d86018377d9cf83e6e2c08fd9fd60d3
SHA13ae1897f221aa5893f8aff0bfd79666f8ba2236f
SHA2561c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3
SHA512d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7
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Filesize
621KB
MD5ed9d91fe584d5109d4067734ac452753
SHA1c277e57866833509d94787fc6f4d634a2714825d
SHA2563629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
SHA512a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a
-
Filesize
621KB
MD5ed9d91fe584d5109d4067734ac452753
SHA1c277e57866833509d94787fc6f4d634a2714825d
SHA2563629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
SHA512a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a
-
Filesize
247KB
MD5e254aed552568e13df13e204adcb8011
SHA118deaf67ac2a3ae2be3d3e620f650cb6edcba92a
SHA25623b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5
SHA512f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f