Analysis
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max time kernel
149s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
15-08-2022 19:39
Static task
static1
Behavioral task
behavioral1
Sample
7f93ebca40acd75da0b0a599e0eb5276.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
7f93ebca40acd75da0b0a599e0eb5276.exe
Resource
win10v2004-20220812-en
General
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Target
7f93ebca40acd75da0b0a599e0eb5276.exe
-
Size
888KB
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MD5
7f93ebca40acd75da0b0a599e0eb5276
-
SHA1
255df64f2dc464e5e89cd20d633605a5c02e9500
-
SHA256
3639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32
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SHA512
9956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5
Malware Config
Extracted
remcos
XP
xpremcuz300622.ddns.net:3542
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
oos.exe
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delete_file
false
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hide_file
true
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hide_keylog_file
false
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install_flag
true
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install_path
%AppData%
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Remcos-MMP2I7
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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startup_value
kkl
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Executes dropped EXE 4 IoCs
Processes:
oos.exeoos.exeoos.exeoos.exepid process 432 oos.exe 2012 oos.exe 1488 oos.exe 1068 oos.exe -
Loads dropped DLL 1 IoCs
Processes:
cmd.exepid process 1336 cmd.exe -
Adds Run key to start application 2 TTPs 8 IoCs
Processes:
oos.exe7f93ebca40acd75da0b0a599e0eb5276.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ oos.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\kkl = "\"C:\\Users\\Admin\\AppData\\Roaming\\oos.exe\"" oos.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 7f93ebca40acd75da0b0a599e0eb5276.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kkl = "\"C:\\Users\\Admin\\AppData\\Roaming\\oos.exe\"" 7f93ebca40acd75da0b0a599e0eb5276.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ 7f93ebca40acd75da0b0a599e0eb5276.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\kkl = "\"C:\\Users\\Admin\\AppData\\Roaming\\oos.exe\"" 7f93ebca40acd75da0b0a599e0eb5276.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ oos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kkl = "\"C:\\Users\\Admin\\AppData\\Roaming\\oos.exe\"" oos.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
7f93ebca40acd75da0b0a599e0eb5276.exeoos.exedescription pid process target process PID 864 set thread context of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 432 set thread context of 1068 432 oos.exe oos.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
7f93ebca40acd75da0b0a599e0eb5276.exeoos.exepid process 864 7f93ebca40acd75da0b0a599e0eb5276.exe 432 oos.exe 432 oos.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
7f93ebca40acd75da0b0a599e0eb5276.exeoos.exedescription pid process Token: SeDebugPrivilege 864 7f93ebca40acd75da0b0a599e0eb5276.exe Token: SeDebugPrivilege 432 oos.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
oos.exepid process 1068 oos.exe -
Suspicious use of WriteProcessMemory 50 IoCs
Processes:
7f93ebca40acd75da0b0a599e0eb5276.exe7f93ebca40acd75da0b0a599e0eb5276.exeWScript.execmd.exeoos.exedescription pid process target process PID 864 wrote to memory of 2028 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2028 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2028 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2028 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 864 wrote to memory of 2008 864 7f93ebca40acd75da0b0a599e0eb5276.exe 7f93ebca40acd75da0b0a599e0eb5276.exe PID 2008 wrote to memory of 1052 2008 7f93ebca40acd75da0b0a599e0eb5276.exe WScript.exe PID 2008 wrote to memory of 1052 2008 7f93ebca40acd75da0b0a599e0eb5276.exe WScript.exe PID 2008 wrote to memory of 1052 2008 7f93ebca40acd75da0b0a599e0eb5276.exe WScript.exe PID 2008 wrote to memory of 1052 2008 7f93ebca40acd75da0b0a599e0eb5276.exe WScript.exe PID 1052 wrote to memory of 1336 1052 WScript.exe cmd.exe PID 1052 wrote to memory of 1336 1052 WScript.exe cmd.exe PID 1052 wrote to memory of 1336 1052 WScript.exe cmd.exe PID 1052 wrote to memory of 1336 1052 WScript.exe cmd.exe PID 1336 wrote to memory of 432 1336 cmd.exe oos.exe PID 1336 wrote to memory of 432 1336 cmd.exe oos.exe PID 1336 wrote to memory of 432 1336 cmd.exe oos.exe PID 1336 wrote to memory of 432 1336 cmd.exe oos.exe PID 432 wrote to memory of 2012 432 oos.exe oos.exe PID 432 wrote to memory of 2012 432 oos.exe oos.exe PID 432 wrote to memory of 2012 432 oos.exe oos.exe PID 432 wrote to memory of 2012 432 oos.exe oos.exe PID 432 wrote to memory of 1488 432 oos.exe oos.exe PID 432 wrote to memory of 1488 432 oos.exe oos.exe PID 432 wrote to memory of 1488 432 oos.exe oos.exe PID 432 wrote to memory of 1488 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe PID 432 wrote to memory of 1068 432 oos.exe oos.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7f93ebca40acd75da0b0a599e0eb5276.exe"C:\Users\Admin\AppData\Local\Temp\7f93ebca40acd75da0b0a599e0eb5276.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7f93ebca40acd75da0b0a599e0eb5276.exe"C:\Users\Admin\AppData\Local\Temp\7f93ebca40acd75da0b0a599e0eb5276.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\7f93ebca40acd75da0b0a599e0eb5276.exe"C:\Users\Admin\AppData\Local\Temp\7f93ebca40acd75da0b0a599e0eb5276.exe"2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\oos.exe"4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\oos.exeC:\Users\Admin\AppData\Roaming\oos.exe5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\oos.exe"C:\Users\Admin\AppData\Roaming\oos.exe"6⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\oos.exe"C:\Users\Admin\AppData\Roaming\oos.exe"6⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\oos.exe"C:\Users\Admin\AppData\Roaming\oos.exe"6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\install.vbsFilesize
398B
MD5a5d3440f90cbfae712166e20870eaed7
SHA1cc1e1a2945eb2ad475234344f7527ad9e9873647
SHA256960a570da95b8d16809cbcc18e8ca4d81e16cb666354ddc1d572daf93f291f02
SHA512d3136a280fbb326ccc5cb5ab1214aed8ccd6baa7f3f89ef9e0b5bf391a957dab2c121640bb056e6cbda0594f83133c4dbb4e1e2f0e290b44a401cd2cf8cfd4aa
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C:\Users\Admin\AppData\Roaming\oos.exeFilesize
888KB
MD57f93ebca40acd75da0b0a599e0eb5276
SHA1255df64f2dc464e5e89cd20d633605a5c02e9500
SHA2563639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32
SHA5129956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5
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C:\Users\Admin\AppData\Roaming\oos.exeFilesize
888KB
MD57f93ebca40acd75da0b0a599e0eb5276
SHA1255df64f2dc464e5e89cd20d633605a5c02e9500
SHA2563639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32
SHA5129956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5
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C:\Users\Admin\AppData\Roaming\oos.exeFilesize
888KB
MD57f93ebca40acd75da0b0a599e0eb5276
SHA1255df64f2dc464e5e89cd20d633605a5c02e9500
SHA2563639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32
SHA5129956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5
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C:\Users\Admin\AppData\Roaming\oos.exeFilesize
888KB
MD57f93ebca40acd75da0b0a599e0eb5276
SHA1255df64f2dc464e5e89cd20d633605a5c02e9500
SHA2563639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32
SHA5129956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5
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C:\Users\Admin\AppData\Roaming\oos.exeFilesize
888KB
MD57f93ebca40acd75da0b0a599e0eb5276
SHA1255df64f2dc464e5e89cd20d633605a5c02e9500
SHA2563639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32
SHA5129956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5
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\Users\Admin\AppData\Roaming\oos.exeFilesize
888KB
MD57f93ebca40acd75da0b0a599e0eb5276
SHA1255df64f2dc464e5e89cd20d633605a5c02e9500
SHA2563639a796055969929b98a8a34fde77d9a0f79242ec6f012fea2dc14a98752a32
SHA5129956bc0e6dc29df89bcaffdc6f925709314657e0dbd4484ec66cd41f1825fc692d71cc733fe5d2d724a40073f66672bc396f461c81993324e7f731457fbc9ab5
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memory/432-84-0x0000000000000000-mapping.dmp
-
memory/432-86-0x0000000000250000-0x0000000000334000-memory.dmpFilesize
912KB
-
memory/864-56-0x0000000004940000-0x0000000004A0C000-memory.dmpFilesize
816KB
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memory/864-57-0x0000000000490000-0x00000000004A8000-memory.dmpFilesize
96KB
-
memory/864-59-0x0000000004ED0000-0x0000000004F4A000-memory.dmpFilesize
488KB
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memory/864-58-0x00000000056E0000-0x000000000579C000-memory.dmpFilesize
752KB
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memory/864-54-0x0000000000180000-0x0000000000264000-memory.dmpFilesize
912KB
-
memory/864-55-0x0000000076321000-0x0000000076323000-memory.dmpFilesize
8KB
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memory/1052-77-0x0000000000000000-mapping.dmp
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memory/1068-103-0x000000000043168C-mapping.dmp
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memory/1068-108-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1068-109-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1068-107-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1336-81-0x0000000000000000-mapping.dmp
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memory/2008-65-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/2008-78-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/2008-67-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
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memory/2008-73-0x000000000043168C-mapping.dmp
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memory/2008-76-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/2008-72-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/2008-68-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
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memory/2008-70-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/2008-66-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
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memory/2008-63-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
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memory/2008-61-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
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memory/2008-60-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB