Analysis
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max time kernel
144s -
max time network
147s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
03-02-2023 19:17
Static task
static1
General
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Target
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe
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Size
4.0MB
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MD5
0b1ba52e80b9a31fe02acca96d47d132
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SHA1
f81d88e07d12c6c1d0745a049a32da8e7ff5b940
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SHA256
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb
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SHA512
eaf2f00076554e070822ded7679bfeb26c489f515cb114aaf26cd83a71b388090c0e7d754a4bf826ab2b6bcc7d1605ff34203e9c8cfa7037446018c8540ba290
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SSDEEP
98304:OC7ev/9edV/oLryVXQefuunuXYxWKBsjAb02m59I2:V7g9eP/GefuummLejA7m5m2
Malware Config
Signatures
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Processes:
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 3 IoCs
Processes:
csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exepid process 3196 csrss.exe 948 injector.exe 2840 f801950a962ddba14caaa44bf084b55c.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx behavioral1/memory/2840-416-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/2840-456-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/2840-458-0x0000000000400000-0x0000000000C25000-memory.dmp upx -
Processes:
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe = "0" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.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 Windows directory 2 IoCs
Processes:
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exedescription ioc process File opened for modification C:\Windows\rss 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe File created C:\Windows\rss\csrss.exe 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1788 schtasks.exe 1200 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\NetTrace netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exeinjector.execsrss.exepid process 2432 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 2432 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 3196 csrss.exe 3196 csrss.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 3196 csrss.exe 3196 csrss.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe 948 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.execsrss.exedescription pid process Token: SeDebugPrivilege 2432 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Token: SeImpersonatePrivilege 2432 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe Token: SeSystemEnvironmentPrivilege 3196 csrss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.execmd.execsrss.exedescription pid process target process PID 3824 wrote to memory of 2260 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe cmd.exe PID 3824 wrote to memory of 2260 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe cmd.exe PID 2260 wrote to memory of 3992 2260 cmd.exe netsh.exe PID 2260 wrote to memory of 3992 2260 cmd.exe netsh.exe PID 3824 wrote to memory of 3196 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe csrss.exe PID 3824 wrote to memory of 3196 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe csrss.exe PID 3824 wrote to memory of 3196 3824 722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe csrss.exe PID 3196 wrote to memory of 948 3196 csrss.exe injector.exe PID 3196 wrote to memory of 948 3196 csrss.exe injector.exe PID 3196 wrote to memory of 2840 3196 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 3196 wrote to memory of 2840 3196 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 3196 wrote to memory of 2840 3196 csrss.exe f801950a962ddba14caaa44bf084b55c.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe"C:\Users\Admin\AppData\Local\Temp\722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe"C:\Users\Admin\AppData\Local\Temp\722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb.exe"2⤵
- Windows security bypass
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeC:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe4⤵
- Executes dropped EXE
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "csrss" /f5⤵
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "ScheduledUpdate" /f5⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dllFilesize
99KB
MD509031a062610d77d685c9934318b4170
SHA1880f744184e7774f3d14c1bb857e21cc7fe89a6d
SHA256778bd69af403df3c4e074c31b3850d71bf0e64524bea4272a802ca9520b379dd
SHA5129a276e1f0f55d35f2bf38eb093464f7065bdd30a660e6d1c62eed5e76d1fb2201567b89d9ae65d2d89dc99b142159e36fb73be8d5e08252a975d50544a7cda27
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\rss\csrss.exeFilesize
4.0MB
MD50b1ba52e80b9a31fe02acca96d47d132
SHA1f81d88e07d12c6c1d0745a049a32da8e7ff5b940
SHA256722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb
SHA512eaf2f00076554e070822ded7679bfeb26c489f515cb114aaf26cd83a71b388090c0e7d754a4bf826ab2b6bcc7d1605ff34203e9c8cfa7037446018c8540ba290
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C:\Windows\rss\csrss.exeFilesize
4.0MB
MD50b1ba52e80b9a31fe02acca96d47d132
SHA1f81d88e07d12c6c1d0745a049a32da8e7ff5b940
SHA256722d7de9954ed5725bf852e693177e4d93df77798c6f8005034100d4944dfadb
SHA512eaf2f00076554e070822ded7679bfeb26c489f515cb114aaf26cd83a71b388090c0e7d754a4bf826ab2b6bcc7d1605ff34203e9c8cfa7037446018c8540ba290
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memory/948-372-0x0000000000000000-mapping.dmp
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memory/2260-291-0x0000000000000000-mapping.dmp
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memory/2432-157-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-154-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-123-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-124-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-125-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-127-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-126-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-128-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-129-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-131-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-132-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-133-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-134-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-135-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-136-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-164-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-138-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-139-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-140-0x0000000002AB0000-0x0000000002E9B000-memory.dmpFilesize
3.9MB
-
memory/2432-141-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-142-0x0000000002EA0000-0x0000000003717000-memory.dmpFilesize
8.5MB
-
memory/2432-143-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-144-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/2432-145-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-146-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-147-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-148-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-149-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-150-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-151-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-152-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-153-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-163-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-155-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-156-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-121-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-158-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-159-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-162-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-161-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-160-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-122-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-137-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-165-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-166-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-167-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-168-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-169-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-170-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-171-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-172-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-173-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-174-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-175-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-176-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-177-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-178-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-179-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-180-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-181-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-182-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-244-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/2432-115-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-116-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-117-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-118-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-119-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2432-120-0x0000000077460000-0x00000000775EE000-memory.dmpFilesize
1.6MB
-
memory/2840-456-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
-
memory/2840-458-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
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memory/2840-416-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
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memory/2840-405-0x0000000000000000-mapping.dmp
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memory/3196-445-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3196-364-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3196-296-0x0000000000000000-mapping.dmp
-
memory/3196-378-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/3196-359-0x0000000002F00000-0x00000000032EA000-memory.dmpFilesize
3.9MB
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memory/3824-293-0x0000000002AC0000-0x0000000002EAD000-memory.dmpFilesize
3.9MB
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memory/3824-294-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3824-301-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3992-292-0x0000000000000000-mapping.dmp