Analysis
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max time kernel
45s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
02-11-2022 15:05
Behavioral task
behavioral1
Sample
fisakalzbx64.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
fisakalzbx64.exe
Resource
win10v2004-20220812-en
General
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Target
fisakalzbx64.exe
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Size
4.5MB
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MD5
4a30561d4524503303a22cc33091cb2c
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SHA1
c9392e3487d5c75f26eb0c736ba6b88e9a60512c
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SHA256
335119cef0b806406212347029779044b164106236a415669f6d544ec3417b42
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SHA512
19e6875992a1e890aa60b957dc3e0f9c6f4162b3ac859e13323e20a75fa903858c535d41abd512743264410c5b8c32802db8cc00b1e97027db7319cb440aa9a6
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SSDEEP
49152:KLLA3Hrb/TzvO90dL3BmAFd4A64nsfJwwkr6OR1Q7Y2i1CC5E9ngrabyP2NgIo2Q:d3FJbQUHEF2uN86nubOC0DCZFOs
Malware Config
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 4 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
fisakalzbx64.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\ResolveSync.crw.fisakalzb fisakalzbx64.exe File renamed C:\Users\Admin\Pictures\BlockClose.png => C:\Users\Admin\Pictures\BlockClose.png.fisakalzb fisakalzbx64.exe File opened for modification C:\Users\Admin\Pictures\BlockClose.png.fisakalzb fisakalzbx64.exe File renamed C:\Users\Admin\Pictures\ResolveSync.crw => C:\Users\Admin\Pictures\ResolveSync.crw.fisakalzb fisakalzbx64.exe -
Drops startup file 1 IoCs
Processes:
fisakalzbx64.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HOW TO RESTORE YOUR FILES.TXT fisakalzbx64.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 64 IoCs
Processes:
fisakalzbx64.exedescription ioc process File created C:\Program Files (x86)\Microsoft Office\Templates\1033\Access\HOW TO RESTORE YOUR FILES.TXT fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.resources_3.9.1.v20140825-1431.jar.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0156537.WMF fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\schema\com.jrockit.mc.rjmx.syntheticnotification.exsd fisakalzbx64.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\mosaic_window.html.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AG00126_.GIF.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Seoul fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0213449.WMF fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PARNT_07.MID fisakalzbx64.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\HOW TO RESTORE YOUR FILES.TXT fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD21304_.GIF.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Templates\1033\OrielResume.Dotx.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\et.pak.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\sound.properties fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler-api.xml fisakalzbx64.exe File created C:\Program Files\VideoLAN\VLC\locale\pt_BR\LC_MESSAGES\HOW TO RESTORE YOUR FILES.TXT fisakalzbx64.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Martinique.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0302953.JPG.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveDocumentReview\InactiveTabImage.jpg fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\ADD.GIF fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Ojinaga.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-modules-progress-ui.xml fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.frameworkadmin.nl_zh_4.4.0.v20140623020002.jar.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0101857.BMP fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0145361.JPG.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0182888.WMF fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH01235U.BMP.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCHDREQ.CFG.fisakalzb fisakalzbx64.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.equinox.p2.rcp.feature_1.2.0.v20140523-0116\HOW TO RESTORE YOUR FILES.TXT fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\MST7MDT fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0237225.WMF.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02062U.BMP.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBFTSCM\SCHEME42.CSS fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ecf.filetransfer_5.0.0.v20140827-1444.jar fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.operations_2.4.0.v20131119-0908.jar fisakalzbx64.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\cs\LC_MESSAGES\vlc.mo.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\equalizer_window.html.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\Adobe\symbol.txt fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\win\CP1250.TXT fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Australia\Currie.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\SystemV\CST6CDT.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\ct.sym fisakalzbx64.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Asia\Jakarta.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18255_.WMF.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUB6INTL.DLL.IDX_DLL.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-core-multitabs.xml.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\VideoLAN\VLC\README.txt.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO02055_.WMF fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\REC.CFG.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\lib\locale\jfluid-server_ja.jar fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR26F.GIF fisakalzbx64.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\HOW TO RESTORE YOUR FILES.TXT fisakalzbx64.exe File created C:\Program Files\VideoLAN\VLC\locale\fa\LC_MESSAGES\HOW TO RESTORE YOUR FILES.TXT fisakalzbx64.exe File opened for modification C:\Program Files\7-Zip\Lang\nn.txt fisakalzbx64.exe File opened for modification C:\Program Files\Java\jre7\lib\jce.jar.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\SoftBlue\background.gif fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\CalendarToolIconImages.jpg.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\bg_VelvetRose.gif fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Wake fisakalzbx64.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.jetty.http_8.1.14.v20131031.jar fisakalzbx64.exe File opened for modification C:\Program Files\VideoLAN\VLC\THANKS.txt fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AN04332_.WMF.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0151041.WMF.fisakalzb fisakalzbx64.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0309598.JPG fisakalzbx64.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 1584 sc.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 1428 vssadmin.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 544 vssvc.exe Token: SeRestorePrivilege 544 vssvc.exe Token: SeAuditPrivilege 544 vssvc.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
fisakalzbx64.execmd.execmd.exedescription pid process target process PID 1212 wrote to memory of 996 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 996 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 996 1212 fisakalzbx64.exe cmd.exe PID 996 wrote to memory of 1584 996 cmd.exe sc.exe PID 996 wrote to memory of 1584 996 cmd.exe sc.exe PID 996 wrote to memory of 1584 996 cmd.exe sc.exe PID 996 wrote to memory of 1164 996 cmd.exe findstr.exe PID 996 wrote to memory of 1164 996 cmd.exe findstr.exe PID 996 wrote to memory of 1164 996 cmd.exe findstr.exe PID 1212 wrote to memory of 1436 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 1436 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 1436 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 472 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 472 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 472 1212 fisakalzbx64.exe cmd.exe PID 472 wrote to memory of 1428 472 cmd.exe vssadmin.exe PID 472 wrote to memory of 1428 472 cmd.exe vssadmin.exe PID 472 wrote to memory of 1428 472 cmd.exe vssadmin.exe PID 1212 wrote to memory of 556 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 556 1212 fisakalzbx64.exe cmd.exe PID 1212 wrote to memory of 556 1212 fisakalzbx64.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fisakalzbx64.exe"C:\Users\Admin\AppData\Local\Temp\fisakalzbx64.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1212 -
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\xkisvlkwqlmtjesmwpo.bat2⤵
- Suspicious use of WriteProcessMemory
PID:996 -
C:\Windows\system32\sc.exeSC QUERY3⤵
- Launches sc.exe
PID:1584
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C:\Windows\system32\findstr.exeFINDSTR SERVICE_NAME3⤵PID:1164
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\bhcsiea.bat2⤵PID:1436
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\ljrqtyangopbnetfake.bat2⤵
- Suspicious use of WriteProcessMemory
PID:472 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1428
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\yprcqmipsorwjhmnw.bat2⤵PID:556
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:544
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
47B
MD52202e846ba05d7f0bb20adbc5249c359
SHA14115d2d15614503456aea14db61d71a756cc7b8c
SHA2560965cb8ee38adedd9ba06bdad9220a35890c2df0e4c78d0559cd6da653bf740f
SHA512cd6ce6d89a8e5f75724405bc2694b706819c3c554b042075d5eb47fdb75653235160ac8a85e7425a49d98f25b3886faaaec5599bcf66d20bf6115dc3af4ba9c7
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Filesize
43B
MD555310bb774fff38cca265dbc70ad6705
SHA1cb8d76e9fd38a0b253056e5f204dab5441fe932b
SHA2561fbdb97893d09d59575c3ef95df3c929fe6b6ddf1b273283e4efadf94cdc802d
SHA51240e5a5e8454ca3eaac36d732550e2c5d869a235e3bbc4d31c4afa038fe4e06f782fa0885e876ad8119be766477fdcc12c1d5d04d53cf6b324e366b5351fc7cd4