Analysis
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max time kernel
72s -
max time network
74s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 07:31
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
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Target
file.exe
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Size
1.2MB
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MD5
ac00a22251200048aaae02bc7e4d021b
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SHA1
7bf250bfa164b2f39c494fd8947e3324a6480f49
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SHA256
ca3036197b66fff40ad56c5070e56025e3f640a73e96bc00d5751defbb59b935
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SHA512
e4dfe044ea28eb63c250c03f23d0d67c28c2f0824fcdc241c22390f833f5b35be109cb52ce5ced8d682bd05b56174265cdb0743b6aa889063d792e812dc2a1a9
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SSDEEP
24576:pizWviPn9kSdMnAAUDAkOfx1Hx4snD0bu/P2uRG8cnQtp1n6aXfTbmDmIbPnmlCV:iEi/9SnTkW1HxFD0bu/P2uRG8UA1n6ok
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
Processes:
is-U7BH4.tmpPrintFolders.exeVV0j5Vz.exepid process 904 is-U7BH4.tmp 1116 PrintFolders.exe 2004 VV0j5Vz.exe -
Loads dropped DLL 10 IoCs
Processes:
file.exeis-U7BH4.tmpPrintFolders.exeVV0j5Vz.exepid process 736 file.exe 904 is-U7BH4.tmp 904 is-U7BH4.tmp 904 is-U7BH4.tmp 904 is-U7BH4.tmp 1116 PrintFolders.exe 1116 PrintFolders.exe 1116 PrintFolders.exe 2004 VV0j5Vz.exe 2004 VV0j5Vz.exe -
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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Drops file in Program Files directory 9 IoCs
Processes:
is-U7BH4.tmpdescription ioc process File created C:\Program Files (x86)\PrintFolders\is-QDOPA.tmp is-U7BH4.tmp File created C:\Program Files (x86)\PrintFolders\is-FOK3C.tmp is-U7BH4.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-U7BH4.tmp File created C:\Program Files (x86)\PrintFolders\unins000.dat is-U7BH4.tmp File created C:\Program Files (x86)\PrintFolders\is-C41UP.tmp is-U7BH4.tmp File created C:\Program Files (x86)\PrintFolders\is-RAC8K.tmp is-U7BH4.tmp File created C:\Program Files (x86)\PrintFolders\is-3G0A4.tmp is-U7BH4.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-U7BH4.tmp File created C:\Program Files (x86)\PrintFolders\is-LJ3JF.tmp is-U7BH4.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1960 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
PrintFolders.exepid process 1116 PrintFolders.exe 1116 PrintFolders.exe 1116 PrintFolders.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
is-U7BH4.tmptaskkill.exedescription pid process Token: SeRestorePrivilege 904 is-U7BH4.tmp Token: SeBackupPrivilege 904 is-U7BH4.tmp Token: SeDebugPrivilege 1960 taskkill.exe -
Suspicious use of WriteProcessMemory 35 IoCs
Processes:
file.exeis-U7BH4.tmpPrintFolders.execmd.exedescription pid process target process PID 736 wrote to memory of 904 736 file.exe is-U7BH4.tmp PID 736 wrote to memory of 904 736 file.exe is-U7BH4.tmp PID 736 wrote to memory of 904 736 file.exe is-U7BH4.tmp PID 736 wrote to memory of 904 736 file.exe is-U7BH4.tmp PID 736 wrote to memory of 904 736 file.exe is-U7BH4.tmp PID 736 wrote to memory of 904 736 file.exe is-U7BH4.tmp PID 736 wrote to memory of 904 736 file.exe is-U7BH4.tmp PID 904 wrote to memory of 1116 904 is-U7BH4.tmp PrintFolders.exe PID 904 wrote to memory of 1116 904 is-U7BH4.tmp PrintFolders.exe PID 904 wrote to memory of 1116 904 is-U7BH4.tmp PrintFolders.exe PID 904 wrote to memory of 1116 904 is-U7BH4.tmp PrintFolders.exe PID 904 wrote to memory of 1116 904 is-U7BH4.tmp PrintFolders.exe PID 904 wrote to memory of 1116 904 is-U7BH4.tmp PrintFolders.exe PID 904 wrote to memory of 1116 904 is-U7BH4.tmp PrintFolders.exe PID 1116 wrote to memory of 2004 1116 PrintFolders.exe VV0j5Vz.exe PID 1116 wrote to memory of 2004 1116 PrintFolders.exe VV0j5Vz.exe PID 1116 wrote to memory of 2004 1116 PrintFolders.exe VV0j5Vz.exe PID 1116 wrote to memory of 2004 1116 PrintFolders.exe VV0j5Vz.exe PID 1116 wrote to memory of 2004 1116 PrintFolders.exe VV0j5Vz.exe PID 1116 wrote to memory of 2004 1116 PrintFolders.exe VV0j5Vz.exe PID 1116 wrote to memory of 2004 1116 PrintFolders.exe VV0j5Vz.exe PID 1116 wrote to memory of 1820 1116 PrintFolders.exe cmd.exe PID 1116 wrote to memory of 1820 1116 PrintFolders.exe cmd.exe PID 1116 wrote to memory of 1820 1116 PrintFolders.exe cmd.exe PID 1116 wrote to memory of 1820 1116 PrintFolders.exe cmd.exe PID 1116 wrote to memory of 1820 1116 PrintFolders.exe cmd.exe PID 1116 wrote to memory of 1820 1116 PrintFolders.exe cmd.exe PID 1116 wrote to memory of 1820 1116 PrintFolders.exe cmd.exe PID 1820 wrote to memory of 1960 1820 cmd.exe taskkill.exe PID 1820 wrote to memory of 1960 1820 cmd.exe taskkill.exe PID 1820 wrote to memory of 1960 1820 cmd.exe taskkill.exe PID 1820 wrote to memory of 1960 1820 cmd.exe taskkill.exe PID 1820 wrote to memory of 1960 1820 cmd.exe taskkill.exe PID 1820 wrote to memory of 1960 1820 cmd.exe taskkill.exe PID 1820 wrote to memory of 1960 1820 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-8CLNB.tmp\is-U7BH4.tmp"C:\Users\Admin\AppData\Local\Temp\is-8CLNB.tmp\is-U7BH4.tmp" /SL4 $60124 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1065399 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\PrintFolders\PrintFolders.exe"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\VV0j5Vz.exe
- Executes dropped EXE
- Loads dropped DLL
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "PrintFolders.exe" /f & erase "C:\Program Files (x86)\PrintFolders\PrintFolders.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "PrintFolders.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5cbf8569d6270592c7f7f0ac6913c4029
SHA1258775b6bed540e3eb299bf9796cc7dc3cec2f7e
SHA2561619ed599ea2b2531d2fe64b10d0361a240f12b508bcaabc619e2dee55887b54
SHA512b11b0b7d51afc9d16b36dfbc1808f91734207200af36affeae81a83e9d1e340885b2beeb39840cd9578ffb18537fc67a5618d6da2b9e7e7ae5096b494ce731f8
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C:\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5cbf8569d6270592c7f7f0ac6913c4029
SHA1258775b6bed540e3eb299bf9796cc7dc3cec2f7e
SHA2561619ed599ea2b2531d2fe64b10d0361a240f12b508bcaabc619e2dee55887b54
SHA512b11b0b7d51afc9d16b36dfbc1808f91734207200af36affeae81a83e9d1e340885b2beeb39840cd9578ffb18537fc67a5618d6da2b9e7e7ae5096b494ce731f8
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C:\Users\Admin\AppData\Local\Temp\is-8CLNB.tmp\is-U7BH4.tmpFilesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
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C:\Users\Admin\AppData\Local\Temp\is-8CLNB.tmp\is-U7BH4.tmpFilesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
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C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\VV0j5Vz.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\VV0j5Vz.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5cbf8569d6270592c7f7f0ac6913c4029
SHA1258775b6bed540e3eb299bf9796cc7dc3cec2f7e
SHA2561619ed599ea2b2531d2fe64b10d0361a240f12b508bcaabc619e2dee55887b54
SHA512b11b0b7d51afc9d16b36dfbc1808f91734207200af36affeae81a83e9d1e340885b2beeb39840cd9578ffb18537fc67a5618d6da2b9e7e7ae5096b494ce731f8
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\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5cbf8569d6270592c7f7f0ac6913c4029
SHA1258775b6bed540e3eb299bf9796cc7dc3cec2f7e
SHA2561619ed599ea2b2531d2fe64b10d0361a240f12b508bcaabc619e2dee55887b54
SHA512b11b0b7d51afc9d16b36dfbc1808f91734207200af36affeae81a83e9d1e340885b2beeb39840cd9578ffb18537fc67a5618d6da2b9e7e7ae5096b494ce731f8
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\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5cbf8569d6270592c7f7f0ac6913c4029
SHA1258775b6bed540e3eb299bf9796cc7dc3cec2f7e
SHA2561619ed599ea2b2531d2fe64b10d0361a240f12b508bcaabc619e2dee55887b54
SHA512b11b0b7d51afc9d16b36dfbc1808f91734207200af36affeae81a83e9d1e340885b2beeb39840cd9578ffb18537fc67a5618d6da2b9e7e7ae5096b494ce731f8
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\Users\Admin\AppData\Local\Temp\is-8CLNB.tmp\is-U7BH4.tmpFilesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
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\Users\Admin\AppData\Local\Temp\is-MKNAV.tmp\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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\Users\Admin\AppData\Local\Temp\is-MKNAV.tmp\_isetup\_shfoldr.dllFilesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-MKNAV.tmp\_isetup\_shfoldr.dllFilesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\VV0j5Vz.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\VV0j5Vz.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\VV0j5Vz.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/736-98-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/736-54-0x0000000076201000-0x0000000076203000-memory.dmpFilesize
8KB
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memory/736-55-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/736-71-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/904-58-0x0000000000000000-mapping.dmp
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memory/904-86-0x0000000003100000-0x0000000004073000-memory.dmpFilesize
15.4MB
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memory/904-73-0x0000000003100000-0x0000000004073000-memory.dmpFilesize
15.4MB
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memory/1116-78-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/1116-88-0x0000000001B20000-0x0000000002A93000-memory.dmpFilesize
15.4MB
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memory/1116-74-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/1116-77-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/1116-76-0x0000000001B20000-0x0000000002A93000-memory.dmpFilesize
15.4MB
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memory/1116-75-0x0000000001B20000-0x0000000002A93000-memory.dmpFilesize
15.4MB
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memory/1116-87-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/1116-66-0x0000000000000000-mapping.dmp
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memory/1116-89-0x0000000001B20000-0x0000000002A93000-memory.dmpFilesize
15.4MB
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memory/1116-90-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/1116-97-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/1820-94-0x0000000000000000-mapping.dmp
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memory/1960-96-0x0000000000000000-mapping.dmp
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memory/2004-80-0x0000000000000000-mapping.dmp