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Analysis
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max time kernel
118s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240319-en -
resource tags
arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system -
submitted
10/04/2024, 10:04
Behavioral task
behavioral1
Sample
29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe
Resource
win7-20240319-en
Behavioral task
behavioral2
Sample
29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe
Resource
win10v2004-20240226-en
General
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Target
29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe
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Size
22KB
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MD5
8c8e184c280db126e6fcfcc507aea925
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SHA1
aefab35127292cbe0e1d8a1a2fa7c39c9d72f2ea
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SHA256
29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e
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SHA512
eef639853fb52b011fb73dfb3af663d1a2bb11e10fe14c6fc4fbae320ee60d74fb452bbe9af4959930e616025ce213e61614147ea5ee5de466b682c42ac312f2
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SSDEEP
384:We4xxecfPta20La2aaX3jcMq+jsT3N/a20TPhAPhknomo7ptYcFwVc03K:We4ec/2IT3+howcltYcFwVc6K
Malware Config
Signatures
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Drokbk payload 3 IoCs
resource yara_rule behavioral1/memory/2176-0-0x0000000001350000-0x000000000135C000-memory.dmp family_drokbk behavioral1/files/0x001c000000018a1b-8.dat family_drokbk behavioral1/memory/3028-10-0x0000000000DC0000-0x0000000000DCA000-memory.dmp family_drokbk -
Creates new service(s) 1 TTPs
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Executes dropped EXE 1 IoCs
pid Process 3028 SessionService.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015 SessionService.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015 SessionService.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357 SessionService.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357 SessionService.exe -
Launches sc.exe 4 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1372 sc.exe 2976 sc.exe 2808 sc.exe 2668 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies data under HKEY_USERS 42 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs SessionService.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed SessionService.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root SessionService.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe Token: SeDebugPrivilege 3028 SessionService.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2176 wrote to memory of 2808 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 32 PID 2176 wrote to memory of 2808 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 32 PID 2176 wrote to memory of 2808 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 32 PID 2176 wrote to memory of 2668 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 34 PID 2176 wrote to memory of 2668 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 34 PID 2176 wrote to memory of 2668 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 34 PID 2176 wrote to memory of 1372 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 36 PID 2176 wrote to memory of 1372 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 36 PID 2176 wrote to memory of 1372 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 36 PID 2176 wrote to memory of 2976 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 38 PID 2176 wrote to memory of 2976 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 38 PID 2176 wrote to memory of 2976 2176 29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe"C:\Users\Admin\AppData\Local\Temp\29dc4cae5f08c215d57893483b5b42cb00a2d0e7d8361cda9feeaf515f8b5d9e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176 -
C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" create "SessionManagerService" binpath= "c:\programdata\SoftwareDistribution\SessionService.exe" start= delayed-auto2⤵
- Launches sc.exe
PID:2808
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" config "SessionManagerService" DisplayName= "Session Manager Service"2⤵
- Launches sc.exe
PID:2668
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" description "SessionManagerService" "Provides Kernel Compatibility With User Session-Management Service."2⤵
- Launches sc.exe
PID:1372
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" start "SessionManagerService"2⤵
- Launches sc.exe
PID:2976
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:2292
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\??\c:\programdata\SoftwareDistribution\SessionService.exec:\programdata\SoftwareDistribution\SessionService.exe1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:3028
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD514a0e5665a95714ff4951bd35eb73606
SHA10426f65ea5bcff9e0dc48e236bbec293380ccc43
SHA256a8e18a84898f46cd88813838f5e69f05240c4853af2aee5917dcee3a3e2a5d5a
SHA512fe44d9ae670eac4a39567c4ae8deee6f4205d4908c4f78d822e3bb586c0183de7d6efe4b45f14b92da77fc6c24f426a6af14a3280fd5d4a7faa34123e59a4720
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C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize68KB
MD529f65ba8e88c063813cc50a4ea544e93
SHA105a7040d5c127e68c25d81cc51271ffb8bef3568
SHA2561ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
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Filesize
177KB
MD5435a9ac180383f9fa094131b173a2f7b
SHA176944ea657a9db94f9a4bef38f88c46ed4166983
SHA25667dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA5121a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a