Analysis
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max time kernel
68s -
max time network
70s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 08:32
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
1ab96fdea0c6ddb22827ac4489607577
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SHA1
45435d2043a661ea73178a35375b0f3a52e641cd
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SHA256
99bb5c62c5a6a8d22b3a2e8c15a6981764b24c847fbbe0b0e883d5e2aacaee6c
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SHA512
5d36a19979b8bfc5de2e87fe6ba6253403480ad9eccb9549683b79ca3798ed2c1a923257443280fa5b03db17085663f4bd3d4dd91112b9b3ffb96e17e5be2e44
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SSDEEP
24576:piz6ZQ2BCwwLZanC/jISDv1K0mDZUnfc24AdcTC+raexXvsHgagk9vUHgZIY7eC1:i6dB6LZNjpb1HmDKfB4qcTprbXvWJgNS
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
Processes:
is-S3T4M.tmpPrintFolders.exeviTpt6y0.exepid process 2040 is-S3T4M.tmp 744 PrintFolders.exe 1332 viTpt6y0.exe -
Loads dropped DLL 10 IoCs
Processes:
file.exeis-S3T4M.tmpPrintFolders.exeviTpt6y0.exepid process 900 file.exe 2040 is-S3T4M.tmp 2040 is-S3T4M.tmp 2040 is-S3T4M.tmp 2040 is-S3T4M.tmp 744 PrintFolders.exe 744 PrintFolders.exe 744 PrintFolders.exe 1332 viTpt6y0.exe 1332 viTpt6y0.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-S3T4M.tmpdescription ioc process File created C:\Program Files (x86)\PrintFolders\unins000.dat is-S3T4M.tmp File created C:\Program Files (x86)\PrintFolders\is-RIDU5.tmp is-S3T4M.tmp File created C:\Program Files (x86)\PrintFolders\is-4CLHP.tmp is-S3T4M.tmp File created C:\Program Files (x86)\PrintFolders\is-7K88N.tmp is-S3T4M.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-S3T4M.tmp File created C:\Program Files (x86)\PrintFolders\is-MCV82.tmp is-S3T4M.tmp File created C:\Program Files (x86)\PrintFolders\is-9S9SM.tmp is-S3T4M.tmp File created C:\Program Files (x86)\PrintFolders\is-TR9U5.tmp is-S3T4M.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-S3T4M.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 684 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
PrintFolders.exepid process 744 PrintFolders.exe 744 PrintFolders.exe 744 PrintFolders.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
is-S3T4M.tmptaskkill.exedescription pid process Token: SeRestorePrivilege 2040 is-S3T4M.tmp Token: SeBackupPrivilege 2040 is-S3T4M.tmp Token: SeDebugPrivilege 684 taskkill.exe -
Suspicious use of WriteProcessMemory 35 IoCs
Processes:
file.exeis-S3T4M.tmpPrintFolders.execmd.exedescription pid process target process PID 900 wrote to memory of 2040 900 file.exe is-S3T4M.tmp PID 900 wrote to memory of 2040 900 file.exe is-S3T4M.tmp PID 900 wrote to memory of 2040 900 file.exe is-S3T4M.tmp PID 900 wrote to memory of 2040 900 file.exe is-S3T4M.tmp PID 900 wrote to memory of 2040 900 file.exe is-S3T4M.tmp PID 900 wrote to memory of 2040 900 file.exe is-S3T4M.tmp PID 900 wrote to memory of 2040 900 file.exe is-S3T4M.tmp PID 2040 wrote to memory of 744 2040 is-S3T4M.tmp PrintFolders.exe PID 2040 wrote to memory of 744 2040 is-S3T4M.tmp PrintFolders.exe PID 2040 wrote to memory of 744 2040 is-S3T4M.tmp PrintFolders.exe PID 2040 wrote to memory of 744 2040 is-S3T4M.tmp PrintFolders.exe PID 2040 wrote to memory of 744 2040 is-S3T4M.tmp PrintFolders.exe PID 2040 wrote to memory of 744 2040 is-S3T4M.tmp PrintFolders.exe PID 2040 wrote to memory of 744 2040 is-S3T4M.tmp PrintFolders.exe PID 744 wrote to memory of 1332 744 PrintFolders.exe viTpt6y0.exe PID 744 wrote to memory of 1332 744 PrintFolders.exe viTpt6y0.exe PID 744 wrote to memory of 1332 744 PrintFolders.exe viTpt6y0.exe PID 744 wrote to memory of 1332 744 PrintFolders.exe viTpt6y0.exe PID 744 wrote to memory of 1332 744 PrintFolders.exe viTpt6y0.exe PID 744 wrote to memory of 1332 744 PrintFolders.exe viTpt6y0.exe PID 744 wrote to memory of 1332 744 PrintFolders.exe viTpt6y0.exe PID 744 wrote to memory of 600 744 PrintFolders.exe cmd.exe PID 744 wrote to memory of 600 744 PrintFolders.exe cmd.exe PID 744 wrote to memory of 600 744 PrintFolders.exe cmd.exe PID 744 wrote to memory of 600 744 PrintFolders.exe cmd.exe PID 744 wrote to memory of 600 744 PrintFolders.exe cmd.exe PID 744 wrote to memory of 600 744 PrintFolders.exe cmd.exe PID 744 wrote to memory of 600 744 PrintFolders.exe cmd.exe PID 600 wrote to memory of 684 600 cmd.exe taskkill.exe PID 600 wrote to memory of 684 600 cmd.exe taskkill.exe PID 600 wrote to memory of 684 600 cmd.exe taskkill.exe PID 600 wrote to memory of 684 600 cmd.exe taskkill.exe PID 600 wrote to memory of 684 600 cmd.exe taskkill.exe PID 600 wrote to memory of 684 600 cmd.exe taskkill.exe PID 600 wrote to memory of 684 600 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-CIOFB.tmp\is-S3T4M.tmp"C:\Users\Admin\AppData\Local\Temp\is-CIOFB.tmp\is-S3T4M.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1038453 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}\viTpt6y0.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
MD5f83c300bf79200bca358c2736cf8ceba
SHA19486f5d197d9a70a090e47e59c0fe7dab94e6d94
SHA256b837914fe9609dbf7d5db16d48c007b4355f774f20cca9c4e36ae519cbb594d1
SHA512f7361d51faebdd6d869243aeb4ade507ccd6b07491fb9f0d46a640f86541cd66cbc420f34b50e7858a2f80d63c3876b037ba68d028f1858e6b381d640215b7b7
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C:\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5f83c300bf79200bca358c2736cf8ceba
SHA19486f5d197d9a70a090e47e59c0fe7dab94e6d94
SHA256b837914fe9609dbf7d5db16d48c007b4355f774f20cca9c4e36ae519cbb594d1
SHA512f7361d51faebdd6d869243aeb4ade507ccd6b07491fb9f0d46a640f86541cd66cbc420f34b50e7858a2f80d63c3876b037ba68d028f1858e6b381d640215b7b7
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C:\Users\Admin\AppData\Local\Temp\is-CIOFB.tmp\is-S3T4M.tmpFilesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
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C:\Users\Admin\AppData\Local\Temp\is-CIOFB.tmp\is-S3T4M.tmpFilesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
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C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\viTpt6y0.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\viTpt6y0.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5f83c300bf79200bca358c2736cf8ceba
SHA19486f5d197d9a70a090e47e59c0fe7dab94e6d94
SHA256b837914fe9609dbf7d5db16d48c007b4355f774f20cca9c4e36ae519cbb594d1
SHA512f7361d51faebdd6d869243aeb4ade507ccd6b07491fb9f0d46a640f86541cd66cbc420f34b50e7858a2f80d63c3876b037ba68d028f1858e6b381d640215b7b7
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\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5f83c300bf79200bca358c2736cf8ceba
SHA19486f5d197d9a70a090e47e59c0fe7dab94e6d94
SHA256b837914fe9609dbf7d5db16d48c007b4355f774f20cca9c4e36ae519cbb594d1
SHA512f7361d51faebdd6d869243aeb4ade507ccd6b07491fb9f0d46a640f86541cd66cbc420f34b50e7858a2f80d63c3876b037ba68d028f1858e6b381d640215b7b7
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\Program Files (x86)\PrintFolders\PrintFolders.exeFilesize
1.4MB
MD5f83c300bf79200bca358c2736cf8ceba
SHA19486f5d197d9a70a090e47e59c0fe7dab94e6d94
SHA256b837914fe9609dbf7d5db16d48c007b4355f774f20cca9c4e36ae519cbb594d1
SHA512f7361d51faebdd6d869243aeb4ade507ccd6b07491fb9f0d46a640f86541cd66cbc420f34b50e7858a2f80d63c3876b037ba68d028f1858e6b381d640215b7b7
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\Users\Admin\AppData\Local\Temp\is-CIOFB.tmp\is-S3T4M.tmpFilesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
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\Users\Admin\AppData\Local\Temp\is-GTNOG.tmp\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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\Users\Admin\AppData\Local\Temp\is-GTNOG.tmp\_isetup\_shfoldr.dllFilesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-GTNOG.tmp\_isetup\_shfoldr.dllFilesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\viTpt6y0.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\viTpt6y0.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\viTpt6y0.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/600-94-0x0000000000000000-mapping.dmp
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memory/684-96-0x0000000000000000-mapping.dmp
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memory/744-78-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/744-87-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/744-77-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/744-75-0x0000000001B10000-0x0000000002A83000-memory.dmpFilesize
15.4MB
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memory/744-74-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/744-97-0x0000000000400000-0x0000000001373000-memory.dmpFilesize
15.4MB
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memory/744-66-0x0000000000000000-mapping.dmp
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memory/744-90-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/744-89-0x0000000001B10000-0x0000000002A83000-memory.dmpFilesize
15.4MB
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memory/744-76-0x0000000001B10000-0x0000000002A83000-memory.dmpFilesize
15.4MB
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memory/744-88-0x0000000001B10000-0x0000000002A83000-memory.dmpFilesize
15.4MB
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memory/900-55-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/900-69-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/900-54-0x00000000762D1000-0x00000000762D3000-memory.dmpFilesize
8KB
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memory/900-98-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/1332-80-0x0000000000000000-mapping.dmp
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memory/2040-86-0x0000000002F30000-0x0000000003EA3000-memory.dmpFilesize
15.4MB
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memory/2040-58-0x0000000000000000-mapping.dmp
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memory/2040-73-0x0000000002F30000-0x0000000003EA3000-memory.dmpFilesize
15.4MB