Analysis
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max time kernel
114s -
max time network
143s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
28-04-2024 22:35
Static task
static1
Behavioral task
behavioral1
Sample
bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe
Resource
win10v2004-20240419-en
General
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Target
bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe
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Size
448KB
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MD5
0a5ed036671ddc6483ec43e26fe52891
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SHA1
76b973755edf55a7fd9309dc6542776ce0b25e40
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SHA256
bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7
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SHA512
13c5c7028f6cd706312f17e11b14ca7861b997dd09384f6f6114351b8690c20a5f76b3818253f85974608e99e291595776d5a6eb724bcb772bdf08faa50ce17c
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SSDEEP
6144:oNF3POAieKg0hJzuXlGf1aoe9LhE5alENffh/Zoftod2TD2xmSuWV:oNF/OAi3wUavE5alENffh/q1SYFWV
Malware Config
Extracted
stealc
http://185.172.128.151
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url_path
/7043a0c6a68d9c65.php
Signatures
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SectopRAT payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/248-195-0x0000000001400000-0x00000000014C6000-memory.dmp family_sectoprat -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
u3bg.0.exerun.exepid process 1860 u3bg.0.exe 2088 run.exe -
Loads dropped DLL 3 IoCs
Processes:
run.exeu3bg.0.exepid process 2088 run.exe 1860 u3bg.0.exe 1860 u3bg.0.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 web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 2 IoCs
Processes:
run.execmd.exedescription pid process target process PID 2088 set thread context of 1428 2088 run.exe cmd.exe PID 1428 set thread context of 248 1428 cmd.exe MSBuild.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1628 4300 WerFault.exe bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
u3bg.0.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 u3bg.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3bg.0.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 5072 timeout.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
u3bg.0.exerun.execmd.exeMSBuild.exepid process 1860 u3bg.0.exe 1860 u3bg.0.exe 2088 run.exe 2088 run.exe 1428 cmd.exe 1428 cmd.exe 248 MSBuild.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
Processes:
run.execmd.exepid process 2088 run.exe 1428 cmd.exe 1428 cmd.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 248 MSBuild.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
run.exeMSBuild.exepid process 2088 run.exe 2088 run.exe 248 MSBuild.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exerun.exeu3bg.0.execmd.execmd.exedescription pid process target process PID 4300 wrote to memory of 1860 4300 bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe u3bg.0.exe PID 4300 wrote to memory of 1860 4300 bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe u3bg.0.exe PID 4300 wrote to memory of 1860 4300 bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe u3bg.0.exe PID 4300 wrote to memory of 2088 4300 bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe run.exe PID 4300 wrote to memory of 2088 4300 bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe run.exe PID 4300 wrote to memory of 2088 4300 bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe run.exe PID 2088 wrote to memory of 1428 2088 run.exe cmd.exe PID 2088 wrote to memory of 1428 2088 run.exe cmd.exe PID 2088 wrote to memory of 1428 2088 run.exe cmd.exe PID 1860 wrote to memory of 1356 1860 u3bg.0.exe cmd.exe PID 1860 wrote to memory of 1356 1860 u3bg.0.exe cmd.exe PID 1860 wrote to memory of 1356 1860 u3bg.0.exe cmd.exe PID 1356 wrote to memory of 5072 1356 cmd.exe timeout.exe PID 1356 wrote to memory of 5072 1356 cmd.exe timeout.exe PID 1356 wrote to memory of 5072 1356 cmd.exe timeout.exe PID 2088 wrote to memory of 1428 2088 run.exe cmd.exe PID 1428 wrote to memory of 248 1428 cmd.exe MSBuild.exe PID 1428 wrote to memory of 248 1428 cmd.exe MSBuild.exe PID 1428 wrote to memory of 248 1428 cmd.exe MSBuild.exe PID 1428 wrote to memory of 248 1428 cmd.exe MSBuild.exe PID 1428 wrote to memory of 248 1428 cmd.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe"C:\Users\Admin\AppData\Local\Temp\bfa38ada16c5278cadf6085ae36abd814c530e8433f1685494a0d0214638d7d7.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4300 -
C:\Users\Admin\AppData\Local\Temp\u3bg.0.exe"C:\Users\Admin\AppData\Local\Temp\u3bg.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1860 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\u3bg.0.exe" & del "C:\ProgramData\*.dll"" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Windows\SysWOW64\timeout.exetimeout /t 54⤵
- Delays execution with timeout.exe
PID:5072 -
C:\Users\Admin\AppData\Local\Temp\u3bg.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u3bg.2\run.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\SysWOW64\cmd.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:248 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 15722⤵
- Program crash
PID:1628
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4300 -ip 43001⤵PID:1972
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\Are.docxFilesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
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C:\ProgramData\mozglue.dllFilesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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C:\ProgramData\nss3.dllFilesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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C:\Users\Admin\AppData\Local\Temp\93a96ee9Filesize
1.4MB
MD5ffb80d3bf2130ad9c266c462855127c1
SHA1d38f7ce3dfc4c619610c4737e4e9897eeb187018
SHA2569f6a7fc0bc9b3f4dc8cbc2960768fa3a0f03ad3095416fcd571cb2503859d70f
SHA512ad41ce25ba667abeee38c89b14069a4d309a3c4f6cf7e71364620656218ed499ab850d9a352dcce1102e608cf0a80f153ad3e704e1defe0181fada869ef7968b
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C:\Users\Admin\AppData\Local\Temp\tmpEBF7.tmpFilesize
20KB
MD542c395b8db48b6ce3d34c301d1eba9d5
SHA1b7cfa3de344814bec105391663c0df4a74310996
SHA2565644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d
SHA5127b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845
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C:\Users\Admin\AppData\Local\Temp\tmpEC19.tmpFilesize
20KB
MD522be08f683bcc01d7a9799bbd2c10041
SHA12efb6041cf3d6e67970135e592569c76fc4c41de
SHA256451c2c0cf3b7cb412a05347c6e75ed8680f0d2e5f2ab0f64cc2436db9309a457
SHA5120eef192b3d5abe5d2435acf54b42c729c3979e4ad0b73d36666521458043ee7df1e10386bef266d7df9c31db94fb2833152bb2798936cb2082715318ef05d936
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C:\Users\Admin\AppData\Local\Temp\u3bg.0.exeFilesize
303KB
MD59331497f89ddeb3c348f89fe71ea98dd
SHA161bfa642178f8ea43f101015462b0608c4112780
SHA256c31a405cf896488cfc1b7451e64c9333439a5578cc2a7d2070db7b0009785c6f
SHA512330217320bd7e7683cd5d6544b2960b26bea6bde2bd7e2be050382d1f7b8a8ee94630a76d18831c995762e767ec5922643c819540512c4684ec853f4991f6ade
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C:\Users\Admin\AppData\Local\Temp\u3bg.1.zipFilesize
3.7MB
MD578d3ca6355c93c72b494bb6a498bf639
SHA12fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e
SHA256a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
SHA5121b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea
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C:\Users\Admin\AppData\Local\Temp\u3bg.2\UIxMarketPlugin.dllFilesize
1.6MB
MD5d1ba9412e78bfc98074c5d724a1a87d6
SHA10572f98d78fb0b366b5a086c2a74cc68b771d368
SHA256cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
SHA5128765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f
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C:\Users\Admin\AppData\Local\Temp\u3bg.2\bunch.datFilesize
1.3MB
MD51e8237d3028ab52821d69099e0954f97
SHA130a6ae353adda0c471c6ed5b7a2458b07185abf2
SHA2569387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
SHA512a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3
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C:\Users\Admin\AppData\Local\Temp\u3bg.2\relay.dllFilesize
1.5MB
MD510d51becd0bbce0fab147ff9658c565e
SHA14689a18112ff876d3c066bc8c14a08fd6b7b7a4a
SHA2567b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
SHA51229faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29
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C:\Users\Admin\AppData\Local\Temp\u3bg.2\run.exeFilesize
2.4MB
MD59fb4770ced09aae3b437c1c6eb6d7334
SHA1fe54b31b0db8665aa5b22bed147e8295afc88a03
SHA256a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
SHA512140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256
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C:\Users\Admin\AppData\Local\Temp\u3bg.2\whale.dbfFilesize
85KB
MD5a723bf46048e0bfb15b8d77d7a648c3e
SHA18952d3c34e9341e4425571e10f22b782695bb915
SHA256b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
SHA512ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273
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memory/248-201-0x0000000005B50000-0x0000000005B5A000-memory.dmpFilesize
40KB
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memory/248-203-0x0000000006900000-0x000000000691E000-memory.dmpFilesize
120KB
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memory/248-204-0x00000000069D0000-0x0000000006A36000-memory.dmpFilesize
408KB
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memory/248-202-0x0000000006DA0000-0x00000000072CC000-memory.dmpFilesize
5.2MB
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memory/248-223-0x0000000008210000-0x000000000821A000-memory.dmpFilesize
40KB
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memory/248-199-0x0000000005C90000-0x0000000005D06000-memory.dmpFilesize
472KB
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memory/248-200-0x0000000005D80000-0x0000000005DD0000-memory.dmpFilesize
320KB
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memory/248-198-0x0000000005F50000-0x0000000006112000-memory.dmpFilesize
1.8MB
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memory/248-197-0x00000000061C0000-0x0000000006766000-memory.dmpFilesize
5.6MB
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memory/248-196-0x0000000005B70000-0x0000000005C02000-memory.dmpFilesize
584KB
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memory/248-195-0x0000000001400000-0x00000000014C6000-memory.dmpFilesize
792KB
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memory/248-192-0x0000000073CF0000-0x0000000075007000-memory.dmpFilesize
19.1MB
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memory/1428-190-0x0000000072D20000-0x0000000072E9D000-memory.dmpFilesize
1.5MB
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memory/1428-188-0x00007FFBA4280000-0x00007FFBA4489000-memory.dmpFilesize
2.0MB
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memory/1860-19-0x0000000061E00000-0x0000000061EF3000-memory.dmpFilesize
972KB
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memory/1860-184-0x0000000000400000-0x0000000001A17000-memory.dmpFilesize
22.1MB
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memory/1860-17-0x00000000035F0000-0x0000000003617000-memory.dmpFilesize
156KB
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memory/1860-18-0x0000000000400000-0x0000000001A17000-memory.dmpFilesize
22.1MB
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memory/1860-16-0x0000000001C50000-0x0000000001D50000-memory.dmpFilesize
1024KB
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memory/2088-185-0x0000000072D20000-0x0000000072E9D000-memory.dmpFilesize
1.5MB
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memory/2088-147-0x00007FFBA4280000-0x00007FFBA4489000-memory.dmpFilesize
2.0MB
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memory/2088-146-0x0000000072D20000-0x0000000072E9D000-memory.dmpFilesize
1.5MB
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memory/4300-154-0x0000000003620000-0x000000000368D000-memory.dmpFilesize
436KB
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memory/4300-153-0x0000000000400000-0x0000000001A3B000-memory.dmpFilesize
22.2MB
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memory/4300-3-0x0000000000400000-0x0000000001A3B000-memory.dmpFilesize
22.2MB
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memory/4300-1-0x0000000001C40000-0x0000000001D40000-memory.dmpFilesize
1024KB
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memory/4300-2-0x0000000003620000-0x000000000368D000-memory.dmpFilesize
436KB