Overview
overview
10Static
static
15179b743d...95.exe
windows7_x64
1015179b743d...95.exe
windows10_x64
104fa1176e4a...91.exe
windows7_x64
104fa1176e4a...91.exe
windows10_x64
10b51944f544...6a.exe
windows7_x64
10b51944f544...6a.exe
windows10_x64
10b91245cf0f...42.exe
windows7_x64
10b91245cf0f...42.exe
windows10_x64
8cd2eb403d5...71.exe
windows7_x64
10cd2eb403d5...71.exe
windows10_x64
10Analysis
-
max time kernel
150s -
max time network
173s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
18-10-2021 09:25
Static task
static1
Behavioral task
behavioral1
Sample
15179b743d691ce6b078c2a2647269a8dbd4d89f1d15740282969e25c6cce495.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
15179b743d691ce6b078c2a2647269a8dbd4d89f1d15740282969e25c6cce495.exe
Resource
win10-en-20210920
Behavioral task
behavioral3
Sample
4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe
Resource
win7-en-20210920
Behavioral task
behavioral4
Sample
4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe
Resource
win10-en-20211014
Behavioral task
behavioral5
Sample
b51944f54452b85a09eb4ed91f415bed8513faab405244f58e0b48c70d53406a.exe
Resource
win7-en-20210920
Behavioral task
behavioral6
Sample
b51944f54452b85a09eb4ed91f415bed8513faab405244f58e0b48c70d53406a.exe
Resource
win10-en-20211014
Behavioral task
behavioral7
Sample
b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe
Resource
win7-en-20210920
Behavioral task
behavioral8
Sample
b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe
Resource
win10-en-20210920
Behavioral task
behavioral9
Sample
cd2eb403d51be7281c7166a1a88707d768e547197c853263213da955446dd871.exe
Resource
win7-en-20211014
General
-
Target
4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe
-
Size
110KB
-
MD5
40dfeb7c26a3f4a296964cc4c4a3eee2
-
SHA1
495b2d5b638bf71f3515f1e5ebf23a6225745479
-
SHA256
4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91
-
SHA512
508efa51ef55a4ed1ce09a24a23a646e5a0dcaa35ad41ca9bb382666d4a2e6ccc1e5d97452491771b709d263602c572abcdbe877c58ad2c1e4da182505d43422
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
Processes:
WinSrv.exepid process 1680 WinSrv.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 764 cmd.exe -
Drops file in System32 directory 18 IoCs
Processes:
WinSrv.exe4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015 WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\D0E1C4B6144E7ECAB3F020E4A19EFC29_03D1B482EE3032A122274428715A4E19 WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\00E8B2222155EE2FA685572BF7181C12 WinSrv.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\SKXXPT9U.txt WinSrv.exe File created C:\Windows\SysWOW64\WinSrv.exe 4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015 WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357 WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_89854CA6A0F0936A4D2ECA78845CEA25 WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_89854CA6A0F0936A4D2ECA78845CEA25 WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\00E8B2222155EE2FA685572BF7181C12 WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357 WinSrv.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\032Q35Y3.txt WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\032Q35Y3.txt WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\SKXXPT9U.txt WinSrv.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\15RIVSO7.txt WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\D0E1C4B6144E7ECAB3F020E4A19EFC29_03D1B482EE3032A122274428715A4E19 WinSrv.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\15RIVSO7.txt WinSrv.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
WinSrv.exedescription pid process target process PID 1680 set thread context of 840 1680 WinSrv.exe svchost.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
WinSrv.exedescription ioc process Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{00CF31A9-519F-4670-A65A-62EB2FDAE36F}\ce-16-2a-f7-7d-ce WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA WinSrv.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 WinSrv.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 WinSrv.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{00CF31A9-519F-4670-A65A-62EB2FDAE36F}\WpadDecisionReason = "1" WinSrv.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{00CF31A9-519F-4670-A65A-62EB2FDAE36F}\WpadNetworkName = "Network 3" WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs WinSrv.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{00CF31A9-519F-4670-A65A-62EB2FDAE36F}\WpadDecisionTime = 90fd0a4f02c4d701 WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust WinSrv.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings WinSrv.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0119000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs WinSrv.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs WinSrv.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-16-2a-f7-7d-ce WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs WinSrv.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" WinSrv.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{00CF31A9-519F-4670-A65A-62EB2FDAE36F}\WpadDecision = "0" WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{00CF31A9-519F-4670-A65A-62EB2FDAE36F} WinSrv.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-16-2a-f7-7d-ce\WpadDecision = "0" WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs WinSrv.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates WinSrv.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-16-2a-f7-7d-ce\WpadDecisionTime = 90fd0a4f02c4d701 WinSrv.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" WinSrv.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" WinSrv.exe -
Processes:
WinSrv.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 WinSrv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 WinSrv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 WinSrv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 WinSrv.exe -
Suspicious behavior: EnumeratesProcesses 41 IoCs
Processes:
4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exeWinSrv.exesvchost.exepid process 1132 4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe 1680 WinSrv.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 840 svchost.exe 1680 WinSrv.exe 840 svchost.exe 840 svchost.exe -
Suspicious use of UnmapMainImage 2 IoCs
Processes:
4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exeWinSrv.exepid process 1132 4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe 1680 WinSrv.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
WinSrv.exe4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exedescription pid process target process PID 1680 wrote to memory of 840 1680 WinSrv.exe svchost.exe PID 1680 wrote to memory of 840 1680 WinSrv.exe svchost.exe PID 1680 wrote to memory of 840 1680 WinSrv.exe svchost.exe PID 1680 wrote to memory of 840 1680 WinSrv.exe svchost.exe PID 1680 wrote to memory of 840 1680 WinSrv.exe svchost.exe PID 1680 wrote to memory of 840 1680 WinSrv.exe svchost.exe PID 1132 wrote to memory of 764 1132 4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe cmd.exe PID 1132 wrote to memory of 764 1132 4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe cmd.exe PID 1132 wrote to memory of 764 1132 4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe cmd.exe PID 1132 wrote to memory of 764 1132 4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe"C:\Users\Admin\AppData\Local\Temp\4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe"1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del C:\Users\Admin\AppData\Local\Temp\4fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91.exe >> NUL2⤵
- Deletes itself
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C:\Windows\SysWOW64\WinSrv.exeC:\Windows\SysWOW64\WinSrv.exe1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exeC:\Windows\System32\svchost.exe2⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\WinSrv.exeMD5
40dfeb7c26a3f4a296964cc4c4a3eee2
SHA1495b2d5b638bf71f3515f1e5ebf23a6225745479
SHA2564fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91
SHA512508efa51ef55a4ed1ce09a24a23a646e5a0dcaa35ad41ca9bb382666d4a2e6ccc1e5d97452491771b709d263602c572abcdbe877c58ad2c1e4da182505d43422
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C:\Windows\SysWOW64\WinSrv.exeMD5
40dfeb7c26a3f4a296964cc4c4a3eee2
SHA1495b2d5b638bf71f3515f1e5ebf23a6225745479
SHA2564fa1176e4a82538dcb691fb8dbc210429f7b7ac6897ad9ef471f6e90bb29ee91
SHA512508efa51ef55a4ed1ce09a24a23a646e5a0dcaa35ad41ca9bb382666d4a2e6ccc1e5d97452491771b709d263602c572abcdbe877c58ad2c1e4da182505d43422
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memory/764-59-0x0000000000000000-mapping.dmp
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memory/840-56-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/840-58-0x000000000040178D-mapping.dmp
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memory/840-57-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/1132-54-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1132-53-0x00000000001C0000-0x00000000001C7000-memory.dmpFilesize
28KB
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memory/1680-60-0x0000000076851000-0x0000000076853000-memory.dmpFilesize
8KB