Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
07/02/2023, 04:11
Static task
static1
Behavioral task
behavioral1
Sample
KENBAXTERCLIENTCOPY.js
Resource
win7-20221111-en
General
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Target
KENBAXTERCLIENTCOPY.js
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Size
3.8MB
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MD5
c7b0633dd0db084edd9264e1bece25f1
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SHA1
acfbc379e088ff2e65f394cc8c861192abed8117
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SHA256
5d85139835dee61ab951d98035d73d72a6e6f732b8974c261fa19c6642d47dd0
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SHA512
40e59df5525d1b9bbb4007047b95ffe19ad03f58c8c785f9b9772622340665ae361a7083578f910238efbf48855cd143ee737d5c05b23503c65ad3465f71b441
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SSDEEP
3072:qrYedmaAO8Or8YETkPjuYf/J4foavMLBjqybnW80/ng7sdiiQzs1ekLQzFCDUrWc:G6R1xQqU
Malware Config
Signatures
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Blocklisted process makes network request 14 IoCs
flow pid Process 10 1032 WScript.exe 14 1032 WScript.exe 15 1032 WScript.exe 20 1032 WScript.exe 21 1032 WScript.exe 22 1032 WScript.exe 24 1032 WScript.exe 25 1032 WScript.exe 26 1032 WScript.exe 28 1032 WScript.exe 29 1032 WScript.exe 30 1032 WScript.exe 32 1032 WScript.exe 33 1032 WScript.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nCHjYOHJaC.js WScript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nCHjYOHJaC.js WScript.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xtoaketrlk.txt java.exe -
Loads dropped DLL 2 IoCs
pid Process 2012 java.exe 1492 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\xtoaketrlk = "\"C:\\Users\\Admin\\AppData\\Roaming\\xtoaketrlk.txt\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xtoaketrlk = "\"C:\\Users\\Admin\\AppData\\Roaming\\xtoaketrlk.txt\"" java.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 18 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2008 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1028 WMIC.exe Token: SeSecurityPrivilege 1028 WMIC.exe Token: SeTakeOwnershipPrivilege 1028 WMIC.exe Token: SeLoadDriverPrivilege 1028 WMIC.exe Token: SeSystemProfilePrivilege 1028 WMIC.exe Token: SeSystemtimePrivilege 1028 WMIC.exe Token: SeProfSingleProcessPrivilege 1028 WMIC.exe Token: SeIncBasePriorityPrivilege 1028 WMIC.exe Token: SeCreatePagefilePrivilege 1028 WMIC.exe Token: SeBackupPrivilege 1028 WMIC.exe Token: SeRestorePrivilege 1028 WMIC.exe Token: SeShutdownPrivilege 1028 WMIC.exe Token: SeDebugPrivilege 1028 WMIC.exe Token: SeSystemEnvironmentPrivilege 1028 WMIC.exe Token: SeRemoteShutdownPrivilege 1028 WMIC.exe Token: SeUndockPrivilege 1028 WMIC.exe Token: SeManageVolumePrivilege 1028 WMIC.exe Token: 33 1028 WMIC.exe Token: 34 1028 WMIC.exe Token: 35 1028 WMIC.exe Token: SeIncreaseQuotaPrivilege 1028 WMIC.exe Token: SeSecurityPrivilege 1028 WMIC.exe Token: SeTakeOwnershipPrivilege 1028 WMIC.exe Token: SeLoadDriverPrivilege 1028 WMIC.exe Token: SeSystemProfilePrivilege 1028 WMIC.exe Token: SeSystemtimePrivilege 1028 WMIC.exe Token: SeProfSingleProcessPrivilege 1028 WMIC.exe Token: SeIncBasePriorityPrivilege 1028 WMIC.exe Token: SeCreatePagefilePrivilege 1028 WMIC.exe Token: SeBackupPrivilege 1028 WMIC.exe Token: SeRestorePrivilege 1028 WMIC.exe Token: SeShutdownPrivilege 1028 WMIC.exe Token: SeDebugPrivilege 1028 WMIC.exe Token: SeSystemEnvironmentPrivilege 1028 WMIC.exe Token: SeRemoteShutdownPrivilege 1028 WMIC.exe Token: SeUndockPrivilege 1028 WMIC.exe Token: SeManageVolumePrivilege 1028 WMIC.exe Token: 33 1028 WMIC.exe Token: 34 1028 WMIC.exe Token: 35 1028 WMIC.exe Token: SeIncreaseQuotaPrivilege 1344 WMIC.exe Token: SeSecurityPrivilege 1344 WMIC.exe Token: SeTakeOwnershipPrivilege 1344 WMIC.exe Token: SeLoadDriverPrivilege 1344 WMIC.exe Token: SeSystemProfilePrivilege 1344 WMIC.exe Token: SeSystemtimePrivilege 1344 WMIC.exe Token: SeProfSingleProcessPrivilege 1344 WMIC.exe Token: SeIncBasePriorityPrivilege 1344 WMIC.exe Token: SeCreatePagefilePrivilege 1344 WMIC.exe Token: SeBackupPrivilege 1344 WMIC.exe Token: SeRestorePrivilege 1344 WMIC.exe Token: SeShutdownPrivilege 1344 WMIC.exe Token: SeDebugPrivilege 1344 WMIC.exe Token: SeSystemEnvironmentPrivilege 1344 WMIC.exe Token: SeRemoteShutdownPrivilege 1344 WMIC.exe Token: SeUndockPrivilege 1344 WMIC.exe Token: SeManageVolumePrivilege 1344 WMIC.exe Token: 33 1344 WMIC.exe Token: 34 1344 WMIC.exe Token: 35 1344 WMIC.exe Token: SeIncreaseQuotaPrivilege 1344 WMIC.exe Token: SeSecurityPrivilege 1344 WMIC.exe Token: SeTakeOwnershipPrivilege 1344 WMIC.exe Token: SeLoadDriverPrivilege 1344 WMIC.exe -
Suspicious use of WriteProcessMemory 42 IoCs
description pid Process procid_target PID 1388 wrote to memory of 1032 1388 wscript.exe 28 PID 1388 wrote to memory of 1032 1388 wscript.exe 28 PID 1388 wrote to memory of 1032 1388 wscript.exe 28 PID 1388 wrote to memory of 1228 1388 wscript.exe 29 PID 1388 wrote to memory of 1228 1388 wscript.exe 29 PID 1388 wrote to memory of 1228 1388 wscript.exe 29 PID 1228 wrote to memory of 2012 1228 javaw.exe 33 PID 1228 wrote to memory of 2012 1228 javaw.exe 33 PID 1228 wrote to memory of 2012 1228 javaw.exe 33 PID 2012 wrote to memory of 1248 2012 java.exe 36 PID 2012 wrote to memory of 1248 2012 java.exe 36 PID 2012 wrote to memory of 1248 2012 java.exe 36 PID 2012 wrote to memory of 1492 2012 java.exe 35 PID 2012 wrote to memory of 1492 2012 java.exe 35 PID 2012 wrote to memory of 1492 2012 java.exe 35 PID 1248 wrote to memory of 2008 1248 cmd.exe 39 PID 1248 wrote to memory of 2008 1248 cmd.exe 39 PID 1248 wrote to memory of 2008 1248 cmd.exe 39 PID 1492 wrote to memory of 1556 1492 java.exe 40 PID 1492 wrote to memory of 1556 1492 java.exe 40 PID 1492 wrote to memory of 1556 1492 java.exe 40 PID 1556 wrote to memory of 1028 1556 cmd.exe 42 PID 1556 wrote to memory of 1028 1556 cmd.exe 42 PID 1556 wrote to memory of 1028 1556 cmd.exe 42 PID 1492 wrote to memory of 956 1492 java.exe 43 PID 1492 wrote to memory of 956 1492 java.exe 43 PID 1492 wrote to memory of 956 1492 java.exe 43 PID 956 wrote to memory of 1976 956 cmd.exe 45 PID 956 wrote to memory of 1976 956 cmd.exe 45 PID 956 wrote to memory of 1976 956 cmd.exe 45 PID 1492 wrote to memory of 1632 1492 java.exe 47 PID 1492 wrote to memory of 1632 1492 java.exe 47 PID 1492 wrote to memory of 1632 1492 java.exe 47 PID 1632 wrote to memory of 1344 1632 cmd.exe 48 PID 1632 wrote to memory of 1344 1632 cmd.exe 48 PID 1632 wrote to memory of 1344 1632 cmd.exe 48 PID 1492 wrote to memory of 292 1492 java.exe 50 PID 1492 wrote to memory of 292 1492 java.exe 50 PID 1492 wrote to memory of 292 1492 java.exe 50 PID 292 wrote to memory of 1724 292 cmd.exe 51 PID 292 wrote to memory of 1724 292 cmd.exe 51 PID 292 wrote to memory of 1724 292 cmd.exe 51
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\KENBAXTERCLIENTCOPY.js1⤵
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\nCHjYOHJaC.js"2⤵
- Blocklisted process makes network request
- Drops startup file
PID:1032
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C:\Program Files\Java\jre7\bin\javaw.exe"C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:1228 -
C:\Program Files\Java\jre7\bin\java.exe"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\xtoaketrlk.txt"3⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Program Files\Java\jre7\bin\java.exe"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt"4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Windows\system32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:1556 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1028
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C:\Windows\system32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:956 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list6⤵PID:1976
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C:\Windows\system32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:1632 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1344
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C:\Windows\system32\cmd.execmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:292 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list6⤵PID:1724
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C:\Windows\system32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt"4⤵
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\xtoaketrlk.txt"5⤵
- Creates scheduled task(s)
PID:2008
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3406023954-474543476-3319432036-1000\83aa4cc77f591dfc2374580bbd95f6ba_5a633035-f6f6-46e5-abe0-a504cf633ef0
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
1.4MB
MD5acfb5b5fd9ee10bf69497792fd469f85
SHA10e0845217c4907822403912ad6828d8e0b256208
SHA256b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
SHA512e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa
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Filesize
2.6MB
MD52f4a99c2758e72ee2b59a73586a2322f
SHA1af38e7c4d0fc73c23ecd785443705bfdee5b90bf
SHA25624d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
SHA512b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494
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Filesize
4.1MB
MD5b33387e15ab150a7bf560abdc73c3bec
SHA166b8075784131f578ef893fd7674273f709b9a4c
SHA2562eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
SHA51225cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279
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Filesize
772KB
MD5e1aa38a1e78a76a6de73efae136cdb3a
SHA1c463da71871f780b2e2e5dba115d43953b537daf
SHA2562ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
SHA512fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d
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Filesize
346KB
MD5a7ccd0d66b1df72db88776e85375f787
SHA1e5ecfe8ecec99624088c234d0183bbc8413d5d15
SHA25658e82066325488a8e64a8b191e9b940d1700630a0279fa2a2cce0402487712ba
SHA5122c3f76448b12037223b6ad581ba85be6a82f89d9287394836f72b7170c8bf505c0aa2321ea8a302e337f7e084b59f51963893c9dfc9d36068a6c7aeaf17ebc7d
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Filesize
90KB
MD54c7a8f18a3fd023c50a6e0cf6acc90e0
SHA1cfd03fbba652ba64f6122d87bc14aa995196bf74
SHA2563b8680bc4f68f3bc15d29e0f2adb5974e8042662c992c08cc750e395f0df93ba
SHA512c290449e786ea33aeabc47e535c3bcf6560e39f99322cde9045b4e69b9cfc0e7dca1558d28e96236126ee6f9facc96d1858f9438b340638fd14b75c619c1983e
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Filesize
90KB
MD54c7a8f18a3fd023c50a6e0cf6acc90e0
SHA1cfd03fbba652ba64f6122d87bc14aa995196bf74
SHA2563b8680bc4f68f3bc15d29e0f2adb5974e8042662c992c08cc750e395f0df93ba
SHA512c290449e786ea33aeabc47e535c3bcf6560e39f99322cde9045b4e69b9cfc0e7dca1558d28e96236126ee6f9facc96d1858f9438b340638fd14b75c619c1983e
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Filesize
1.4MB
MD5acfb5b5fd9ee10bf69497792fd469f85
SHA10e0845217c4907822403912ad6828d8e0b256208
SHA256b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
SHA512e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa
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Filesize
2.6MB
MD52f4a99c2758e72ee2b59a73586a2322f
SHA1af38e7c4d0fc73c23ecd785443705bfdee5b90bf
SHA25624d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
SHA512b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494
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Filesize
4.1MB
MD5b33387e15ab150a7bf560abdc73c3bec
SHA166b8075784131f578ef893fd7674273f709b9a4c
SHA2562eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
SHA51225cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279
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Filesize
772KB
MD5e1aa38a1e78a76a6de73efae136cdb3a
SHA1c463da71871f780b2e2e5dba115d43953b537daf
SHA2562ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
SHA512fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d
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Filesize
90KB
MD54c7a8f18a3fd023c50a6e0cf6acc90e0
SHA1cfd03fbba652ba64f6122d87bc14aa995196bf74
SHA2563b8680bc4f68f3bc15d29e0f2adb5974e8042662c992c08cc750e395f0df93ba
SHA512c290449e786ea33aeabc47e535c3bcf6560e39f99322cde9045b4e69b9cfc0e7dca1558d28e96236126ee6f9facc96d1858f9438b340638fd14b75c619c1983e
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372