Analysis Overview
SHA256
76ee80e6da636e1751c2a9d7c7d4f18e3068babd79d8333961eaee1bca7c50e6
Threat Level: Known bad
The file e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Modifies file permissions
Checks computer location settings
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-09 09:49
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-09 09:49
Reported
2024-04-09 09:51
Platform
win7-20240221-en
Max time kernel
147s
Max time network
118s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Djvu Ransomware
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\8bebaf58-452d-4677-88a1-31d25f05eec3\\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2264 set thread context of 2060 | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe |
| PID 2680 set thread context of 2520 | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\8bebaf58-452d-4677-88a1-31d25f05eec3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | securebiz.org | udp |
| US | 8.8.8.8:53 | astdg.top | udp |
Files
memory/2264-0-0x0000000002D90000-0x0000000002E21000-memory.dmp
memory/2264-1-0x0000000002D90000-0x0000000002E21000-memory.dmp
memory/2264-2-0x0000000004570000-0x000000000468B000-memory.dmp
memory/2060-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2060-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2264-7-0x0000000002D90000-0x0000000002E21000-memory.dmp
memory/2060-8-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2060-9-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\8bebaf58-452d-4677-88a1-31d25f05eec3\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
| MD5 | e9b7be0e8c22db244de8af36e27a659d |
| SHA1 | 4161eac953f65889890904479e43333e3969f409 |
| SHA256 | 76ee80e6da636e1751c2a9d7c7d4f18e3068babd79d8333961eaee1bca7c50e6 |
| SHA512 | 9863c1b1841c692f5206372763a62eace87e1a85a295c7acfa6e6dfc59b7d1531d56cb2e0a7886f0eb2c08824a4c9fd789866f2a1f353a4b867b57d7f74cc001 |
memory/2680-28-0x0000000000310000-0x00000000003A1000-memory.dmp
memory/2060-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2680-30-0x0000000000310000-0x00000000003A1000-memory.dmp
memory/2520-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2680-35-0x0000000000310000-0x00000000003A1000-memory.dmp
memory/2520-37-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 4f6074e118eca3b7d2b9dde584fda425 |
| SHA1 | cb19ecfc549a160250aebd267619a0517b8a281b |
| SHA256 | 72ec2fc190c6f2cb5321557e17da8b230fc3f1e8476aedd16f7dfc509845c575 |
| SHA512 | edeeeff38c305fa6384a901c82af7be9e6daeaa0ca3541b5b2dbf2ae06e584d093f7a9948afb9e5ee8b1a2691f805f34388f9d9c99b85da099bb5af91a454bc5 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | fc5408c48a55314c72e200b74330cac4 |
| SHA1 | 7e8889ec3189a40e6078088927bf3612753fa628 |
| SHA256 | 7ea2a016d97635b1367455af2250cbf9e9c34d293829d11fc21ce905347590c4 |
| SHA512 | 481753ef755c188012919ea728ea0395f22b6ce83f2f9a11675be6072f154db141b2382dc62ad7c3c95e36596529176a66f40e3d118cf0e33ea8e6f716ae1d77 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 4fcb6324d0cc5736a4588f0a17c14e73 |
| SHA1 | 1516061eb49782fda52919dcfab0b94f4354b5a5 |
| SHA256 | f606eedd481682329eb3011db4093f420cf6794a61e8979f035b67b2928efba8 |
| SHA512 | 29df5b20506e99f772d4ddb756272f38107d23746e41cda70f4dd8978f74460c6bddff4be33652691e333da078d758bcf775187c77376346ae9efa6a9c4cbe83 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
| MD5 | 654f82f1f74ef36efe622405a0f54c77 |
| SHA1 | d1ebc46cc9032e97e9b0e1f6501f54a62ecc0f06 |
| SHA256 | 2b9461f2557dcd0d2d9703faf0eb66c7de4d70b6bd0c7a59c6ea0eed591e8925 |
| SHA512 | a3a1f6a7db33b6dd8a6ae5e33089344044094328b40431d3c42748d1b5a6d8e884aba982e1291311960b81ce52a2a4380cfe3e990624b6eb7b0b3460d1e43591 |
C:\Users\Admin\AppData\Local\Temp\Cab27AC.tmp
| MD5 | ac05d27423a85adc1622c714f2cb6184 |
| SHA1 | b0fe2b1abddb97837ea0195be70ab2ff14d43198 |
| SHA256 | c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d |
| SHA512 | 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d |
memory/2520-50-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2520-51-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2520-52-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2520-55-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2520-57-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2520-58-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2520-59-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2520-60-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-09 09:49
Reported
2024-04-09 09:51
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Djvu Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2e0a74d6-697e-4453-8ee0-5abc3639c582\\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2928 set thread context of 2244 | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe |
| PID 1960 set thread context of 3112 | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\2e0a74d6-697e-4453-8ee0-5abc3639c582" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 24.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.180.250.142.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | securebiz.org | udp |
| US | 8.8.8.8:53 | astdg.top | udp |
| US | 8.8.8.8:53 | astdg.top | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | astdg.top | udp |
| US | 8.8.8.8:53 | astdg.top | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 214.80.50.20.in-addr.arpa | udp |
Files
memory/2928-1-0x0000000004AA0000-0x0000000004B33000-memory.dmp
memory/2928-2-0x0000000004BE0000-0x0000000004CFB000-memory.dmp
memory/2244-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2244-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2244-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2244-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\2e0a74d6-697e-4453-8ee0-5abc3639c582\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
| MD5 | e9b7be0e8c22db244de8af36e27a659d |
| SHA1 | 4161eac953f65889890904479e43333e3969f409 |
| SHA256 | 76ee80e6da636e1751c2a9d7c7d4f18e3068babd79d8333961eaee1bca7c50e6 |
| SHA512 | 9863c1b1841c692f5206372763a62eace87e1a85a295c7acfa6e6dfc59b7d1531d56cb2e0a7886f0eb2c08824a4c9fd789866f2a1f353a4b867b57d7f74cc001 |
memory/2244-15-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1960-18-0x00000000047F0000-0x0000000004885000-memory.dmp
memory/3112-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | fc5408c48a55314c72e200b74330cac4 |
| SHA1 | 7e8889ec3189a40e6078088927bf3612753fa628 |
| SHA256 | 7ea2a016d97635b1367455af2250cbf9e9c34d293829d11fc21ce905347590c4 |
| SHA512 | 481753ef755c188012919ea728ea0395f22b6ce83f2f9a11675be6072f154db141b2382dc62ad7c3c95e36596529176a66f40e3d118cf0e33ea8e6f716ae1d77 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 0adb9743df5d307aefcb29770618facb |
| SHA1 | fc21e18b0f37b106f360ea59fc99f4624981387c |
| SHA256 | 4dea5312eea6e8b893029b22758170c8cec558fe05902848a9a9445f9b0f9c0f |
| SHA512 | 8c6e2df1915538b1769d524366d3db2c16321899e55ae74fc776a4f97793d6b68bc4db10b9cb1166adc5816a4c2a86cf6aaa3751745541d35793d34f9389e4d6 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | d078ea4c02e5089e9b92bd62e9dedab3 |
| SHA1 | abac8c060bf17059915cc8f27c04ff70876e8c8e |
| SHA256 | c3f8a299f7b7ae86d7bc4e1f6c77f78b406fe4e3d874ca4e53748dcabd613843 |
| SHA512 | f5ebcb741600b12c7523fcec38527c1703249d5620a93698ad294bc4fa638d9fd22294abd092edf501ed175105e198776494c1d847748c367786b0c7d99eed3e |
memory/3112-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3112-37-0x0000000000400000-0x0000000000537000-memory.dmp