Analysis
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max time kernel
153s -
max time network
156s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
29-08-2021 19:01
Static task
static1
Behavioral task
behavioral1
Sample
6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe
Resource
win10v20210408
General
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Target
6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe
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Size
140KB
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MD5
0364d2db6f72cd60edcdba813f9ea16f
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SHA1
1d3787f929ad6935a407ac9b5326eef087a9200e
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SHA256
6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0
-
SHA512
46cd8543472772563bdee24163c612ec6c9f307ed8131fb4a35febc291c40eef8ab214b2bc69605840d19b7d30efeea438302742cf992b1c25fbedf6b108cedd
Malware Config
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Extracted
smokeloader
2020
http://readinglistforaugust1.xyz/
http://readinglistforaugust2.xyz/
http://readinglistforaugust3.xyz/
http://readinglistforaugust4.xyz/
http://readinglistforaugust5.xyz/
http://readinglistforaugust6.xyz/
http://readinglistforaugust7.xyz/
http://readinglistforaugust8.xyz/
http://readinglistforaugust9.xyz/
http://readinglistforaugust10.xyz/
http://readinglistforaugust1.site/
http://readinglistforaugust2.site/
http://readinglistforaugust3.site/
http://readinglistforaugust4.site/
http://readinglistforaugust5.site/
http://readinglistforaugust6.site/
http://readinglistforaugust7.site/
http://readinglistforaugust8.site/
http://readinglistforaugust9.site/
http://readinglistforaugust10.site/
http://readinglistforaugust1.club/
http://readinglistforaugust2.club/
http://readinglistforaugust3.club/
http://readinglistforaugust4.club/
http://readinglistforaugust5.club/
http://readinglistforaugust6.club/
http://readinglistforaugust7.club/
http://readinglistforaugust8.club/
http://readinglistforaugust9.club/
http://readinglistforaugust10.club/
Signatures
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Buran
Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
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SmokeLoader
Modular backdoor trojan in use since 2014.
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suricata: ET MALWARE Sharik/Smoke CnC Beacon 11
suricata: ET MALWARE Sharik/Smoke CnC Beacon 11
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
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Executes dropped EXE 4 IoCs
Processes:
A51.exeE88.execsrss.execsrss.exepid Process 576 A51.exe 364 E88.exe 2080 csrss.exe 4660 csrss.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
E88.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion E88.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion E88.exe -
Deletes itself 1 IoCs
Processes:
pid Process 2900 -
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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Processes:
resource yara_rule behavioral1/files/0x0004000000015534-122.dat themida behavioral1/files/0x0004000000015534-123.dat themida behavioral1/memory/364-172-0x0000000000260000-0x0000000000261000-memory.dmp themida -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
A51.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run A51.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\csrss.exe\" -start" A51.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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Processes:
E88.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA E88.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
csrss.exedescription ioc Process File opened (read-only) \??\E: csrss.exe File opened (read-only) \??\X: csrss.exe File opened (read-only) \??\V: csrss.exe File opened (read-only) \??\T: csrss.exe File opened (read-only) \??\O: csrss.exe File opened (read-only) \??\L: csrss.exe File opened (read-only) \??\K: csrss.exe File opened (read-only) \??\F: csrss.exe File opened (read-only) \??\B: csrss.exe File opened (read-only) \??\U: csrss.exe File opened (read-only) \??\P: csrss.exe File opened (read-only) \??\J: csrss.exe File opened (read-only) \??\A: csrss.exe File opened (read-only) \??\Z: csrss.exe File opened (read-only) \??\Y: csrss.exe File opened (read-only) \??\N: csrss.exe File opened (read-only) \??\I: csrss.exe File opened (read-only) \??\H: csrss.exe File opened (read-only) \??\G: csrss.exe File opened (read-only) \??\W: csrss.exe File opened (read-only) \??\S: csrss.exe File opened (read-only) \??\R: csrss.exe File opened (read-only) \??\Q: csrss.exe File opened (read-only) \??\M: csrss.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 25 geoiptool.com -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
E88.exepid Process 364 E88.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exedescription pid Process procid_target PID 4796 set thread context of 4188 4796 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 77 -
Drops file in Program Files directory 64 IoCs
Processes:
csrss.exedescription ioc Process File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Work\RTL\contrast-white\MedTile.scale-100.png csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\calendars.properties.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.equinox.p2.touchpoint.eclipse.nl_zh_4.4.0.v20140623020002.jar csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Riblet.eftx.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-oob.xrm-ms.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Messaging_3.26.24002.0_neutral_split.scale-150_8wekyb3d8bbwe\Assets\starttile.smile.scale-150.png csrss.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\6767_32x32x32.png csrss.exe File created C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT csrss.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\file_types\themes\dark\acrobat_pdf.svg.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.ssl.feature_1.0.0.v20140827-1444\feature.properties.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription2-ppd.xrm-ms csrss.exe File created C:\Program Files\Microsoft Office\root\Office16\osfFPA\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_neutral_split.scale-140_8wekyb3d8bbwe\AppxBlockMap.xml csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_4.5.6.0_x64__8wekyb3d8bbwe\Assets\GetStartedAppList.targetsize-96_altform-unplated.png csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\OneNoteNotebookWideTile.scale-200.png csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Classic\classic_11s.png csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial5-pl.xrm-ms csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_OEM_Perp-pl.xrm-ms csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_17.8010.5926.0_x64__8wekyb3d8bbwe\images\OfficeHubLogo_Splash.png csrss.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_gridview_selected-hover.svg csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\javax.annotation_1.2.0.v201401042248.jar csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_MAK-ul-oob.xrm-ms csrss.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\STRTEDGE\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Thumbnails\Sticker_Icon_Nose.png csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Emoticons\large\star.png csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Collections\contrast-black\WideTile.scale-100_contrast-black.png csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.10252.0_x64__8wekyb3d8bbwe\Assets\FileIcons\FileLogoExtensions.targetsize-20.png csrss.exe File opened for modification C:\Program Files\7-Zip\Lang\ug.txt.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.equinox.p2.jarprocessor.nl_zh_4.4.0.v20140623020002.jar.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-ppd.xrm-ms csrss.exe File created C:\Program Files\Microsoft Office\root\vfs\Fonts\private\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT csrss.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\ug\LC_MESSAGES\vlc.mo.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Car\LTR\contrast-white\SmallTile.scale-125.png csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-ul-oob.xrm-ms.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-ppd.xrm-ms csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN089.XML csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.16112.11621.0_x64__8wekyb3d8bbwe\Assets\AppList.targetsize-30_altform-unplated.png csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-pl.xrm-ms.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_KMS_ClientC2R-ppd.xrm-ms csrss.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\hr-hr\ui-strings.js.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\_Resources\9.rsrc csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.jface.nl_ja_4.4.0.v20140623020002.jar csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\update_tracking\org-netbeans-api-search.xml.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-coredump.xml.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.scale-80.png.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Assets\Workflow\Density_Medium.png csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-96_altform-unplated_contrast-white.png csrss.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\app\dev\nls\de-de\ui-strings.js csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\images\winXPTSFrame.png.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\lib\locale\org-openide-util-lookup_ja.jar csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_OEM_Perp-ppd.xrm-ms.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ppd.xrm-ms csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTrial-pl.xrm-ms.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Store\StoreSimulatorProxy.xml csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-pl.xrm-ms.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\TrafficHub\contrast-black\WideTile.scale-125.png csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AlarmsMedTile.scale-100.png csrss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1702.301.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderAppList.contrast-black_targetsize-32_altform-unplated.png csrss.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_sendforsignature_18.svg.payfast.56F-EFD-238 csrss.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\remove.svg csrss.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\ja-jp\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Office Theme.thmx csrss.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\TEXTCONV\WPFT632.CNV csrss.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exedescription ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid Process 4756 vssadmin.exe -
Processes:
A51.exedescription ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 A51.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 A51.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exepid Process 4188 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 4188 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
pid Process 2900 -
Suspicious behavior: MapViewOfSection 19 IoCs
Processes:
6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exepid Process 4188 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
WMIC.exevssvc.exeE88.exedescription pid Process Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeIncreaseQuotaPrivilege 4324 WMIC.exe Token: SeSecurityPrivilege 4324 WMIC.exe Token: SeTakeOwnershipPrivilege 4324 WMIC.exe Token: SeLoadDriverPrivilege 4324 WMIC.exe Token: SeSystemProfilePrivilege 4324 WMIC.exe Token: SeSystemtimePrivilege 4324 WMIC.exe Token: SeProfSingleProcessPrivilege 4324 WMIC.exe Token: SeIncBasePriorityPrivilege 4324 WMIC.exe Token: SeCreatePagefilePrivilege 4324 WMIC.exe Token: SeBackupPrivilege 4324 WMIC.exe Token: SeRestorePrivilege 4324 WMIC.exe Token: SeShutdownPrivilege 4324 WMIC.exe Token: SeDebugPrivilege 4324 WMIC.exe Token: SeSystemEnvironmentPrivilege 4324 WMIC.exe Token: SeRemoteShutdownPrivilege 4324 WMIC.exe Token: SeUndockPrivilege 4324 WMIC.exe Token: SeManageVolumePrivilege 4324 WMIC.exe Token: 33 4324 WMIC.exe Token: 34 4324 WMIC.exe Token: 35 4324 WMIC.exe Token: 36 4324 WMIC.exe Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeBackupPrivilege 3340 vssvc.exe Token: SeRestorePrivilege 3340 vssvc.exe Token: SeAuditPrivilege 3340 vssvc.exe Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeIncreaseQuotaPrivilege 4324 WMIC.exe Token: SeSecurityPrivilege 4324 WMIC.exe Token: SeTakeOwnershipPrivilege 4324 WMIC.exe Token: SeLoadDriverPrivilege 4324 WMIC.exe Token: SeSystemProfilePrivilege 4324 WMIC.exe Token: SeSystemtimePrivilege 4324 WMIC.exe Token: SeProfSingleProcessPrivilege 4324 WMIC.exe Token: SeIncBasePriorityPrivilege 4324 WMIC.exe Token: SeCreatePagefilePrivilege 4324 WMIC.exe Token: SeBackupPrivilege 4324 WMIC.exe Token: SeRestorePrivilege 4324 WMIC.exe Token: SeShutdownPrivilege 4324 WMIC.exe Token: SeDebugPrivilege 4324 WMIC.exe Token: SeSystemEnvironmentPrivilege 4324 WMIC.exe Token: SeRemoteShutdownPrivilege 4324 WMIC.exe Token: SeUndockPrivilege 4324 WMIC.exe Token: SeManageVolumePrivilege 4324 WMIC.exe Token: 33 4324 WMIC.exe Token: 34 4324 WMIC.exe Token: 35 4324 WMIC.exe Token: 36 4324 WMIC.exe Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeShutdownPrivilege 2900 Token: SeCreatePagefilePrivilege 2900 Token: SeDebugPrivilege 364 E88.exe -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
pid Process 2900 -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exeA51.execsrss.exedescription pid Process procid_target PID 4796 wrote to memory of 4188 4796 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 77 PID 4796 wrote to memory of 4188 4796 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 77 PID 4796 wrote to memory of 4188 4796 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 77 PID 4796 wrote to memory of 4188 4796 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 77 PID 4796 wrote to memory of 4188 4796 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 77 PID 4796 wrote to memory of 4188 4796 6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe 77 PID 2900 wrote to memory of 576 2900 79 PID 2900 wrote to memory of 576 2900 79 PID 2900 wrote to memory of 576 2900 79 PID 2900 wrote to memory of 364 2900 80 PID 2900 wrote to memory of 364 2900 80 PID 2900 wrote to memory of 364 2900 80 PID 2900 wrote to memory of 1208 2900 82 PID 2900 wrote to memory of 1208 2900 82 PID 2900 wrote to memory of 1208 2900 82 PID 2900 wrote to memory of 1208 2900 82 PID 2900 wrote to memory of 1656 2900 83 PID 2900 wrote to memory of 1656 2900 83 PID 2900 wrote to memory of 1656 2900 83 PID 2900 wrote to memory of 1988 2900 84 PID 2900 wrote to memory of 1988 2900 84 PID 2900 wrote to memory of 1988 2900 84 PID 2900 wrote to memory of 1988 2900 84 PID 576 wrote to memory of 2080 576 A51.exe 85 PID 576 wrote to memory of 2080 576 A51.exe 85 PID 576 wrote to memory of 2080 576 A51.exe 85 PID 2900 wrote to memory of 2792 2900 86 PID 2900 wrote to memory of 2792 2900 86 PID 2900 wrote to memory of 2792 2900 86 PID 2900 wrote to memory of 2844 2900 87 PID 2900 wrote to memory of 2844 2900 87 PID 2900 wrote to memory of 2844 2900 87 PID 2900 wrote to memory of 2844 2900 87 PID 2900 wrote to memory of 3304 2900 88 PID 2900 wrote to memory of 3304 2900 88 PID 2900 wrote to memory of 3304 2900 88 PID 2900 wrote to memory of 4064 2900 89 PID 2900 wrote to memory of 4064 2900 89 PID 2900 wrote to memory of 4064 2900 89 PID 2900 wrote to memory of 4064 2900 89 PID 2900 wrote to memory of 3484 2900 90 PID 2900 wrote to memory of 3484 2900 90 PID 2900 wrote to memory of 3484 2900 90 PID 2900 wrote to memory of 4072 2900 91 PID 2900 wrote to memory of 4072 2900 91 PID 2900 wrote to memory of 4072 2900 91 PID 2900 wrote to memory of 4072 2900 91 PID 2080 wrote to memory of 4484 2080 csrss.exe 92 PID 2080 wrote to memory of 4484 2080 csrss.exe 92 PID 2080 wrote to memory of 4484 2080 csrss.exe 92 PID 2080 wrote to memory of 4036 2080 csrss.exe 93 PID 2080 wrote to memory of 4036 2080 csrss.exe 93 PID 2080 wrote to memory of 4036 2080 csrss.exe 93 PID 2080 wrote to memory of 4564 2080 csrss.exe 95 PID 2080 wrote to memory of 4564 2080 csrss.exe 95 PID 2080 wrote to memory of 4564 2080 csrss.exe 95 PID 2080 wrote to memory of 4568 2080 csrss.exe 100 PID 2080 wrote to memory of 4568 2080 csrss.exe 100 PID 2080 wrote to memory of 4568 2080 csrss.exe 100 PID 2080 wrote to memory of 4572 2080 csrss.exe 98 PID 2080 wrote to memory of 4572 2080 csrss.exe 98 PID 2080 wrote to memory of 4572 2080 csrss.exe 98 PID 2080 wrote to memory of 4660 2080 csrss.exe 99 PID 2080 wrote to memory of 4660 2080 csrss.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe"C:\Users\Admin\AppData\Local\Temp\6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Users\Admin\AppData\Local\Temp\6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe"C:\Users\Admin\AppData\Local\Temp\6226d51fab1b39f5ff32c59eea507554d38242b0f5f7b8f85eb17974c0148ba0.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4188
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C:\Users\Admin\AppData\Local\Temp\A51.exeC:\Users\Admin\AppData\Local\Temp\A51.exe1⤵
- Executes dropped EXE
- Adds Run key to start application
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:576 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe" -start2⤵
- Executes dropped EXE
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C wmic shadowcopy delete3⤵PID:4484
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4324
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C bcdedit /set {default} recoveryenabled no3⤵PID:4036
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵PID:4564
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C vssadmin delete shadows /all /quiet3⤵PID:4572
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C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:4756
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe" -agent 03⤵
- Executes dropped EXE
- Drops file in Program Files directory
PID:4660
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C wbadmin delete catalog -quiet3⤵PID:4568
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C:\Users\Admin\AppData\Local\Temp\E88.exeC:\Users\Admin\AppData\Local\Temp\E88.exe1⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
PID:364
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1208
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:1656
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1988
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:2792
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:2844
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:3304
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:4064
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:3484
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:4072
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3340
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3F26ED5DE6B4E859CCCA6035ECB8D9CB
MD55703edef7cb0f99305a6b18845e0443e
SHA1fb6f022ebde210306e1a6575462d6451e98af454
SHA256e4ce02059eb175c30879041d610db7b8798cdf57a4c67afc83c125c2db36e883
SHA5124631853bda1498ff3cace6a348fd2d6770edd0fec166707c3afebff09644f34e29a7a6dd3e9cb167c40e8b5fa1fbbc80ba26d80b4d939daf56278c276b07ada4
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\204C1AA6F6114E6A513754A2AB5760FA_0673414C08DE7F919AE3F6C4CC65AEEE
MD5888f7457c332ac5e1897316e159f58c1
SHA1a3047c6e978158dfae29b5735e8131ec1b30703d
SHA256c2c14652875bfeb1ed529202da6d45eb974acab193c005908cf90b8c5cf3dd41
SHA5120abdc5f78ade2f56b0f1954adc0479b5dcc88d401bfac95754e7dd80adefe7375a426fd89f81b657ebe9c113092524dcbd1e80c39a4bec51ccd93bc0bc3a5aff
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5939460925953ce88e1086341b8a11bda
SHA106249b891050a9fac128ccfee943aeb5bede1c7b
SHA256d4da3c5ff04a3b677eb77b1bfedc14e29ebd0d01c476d44a0b1a2366447ab016
SHA512a8dc3eb58a4a550cc2551463a3d813396caf3f2b65f5b13c8e339a4a32652895ee15c23eb5ba833eca4e7c22331a622657cf5bd64098f0c54e43b4e92fe65f30
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3F26ED5DE6B4E859CCCA6035ECB8D9CB
MD5cba65197005fb80396cf022dd77bbe2c
SHA1f63858921aa0c5a4a66481b733965266937ead23
SHA256d3eb62016440fd241b0cbd3cfb4265de0954949a3f39c99e74ab6e638e219af9
SHA512061049888394f8c21fb25f6fbab97eecc7379ecd6e91837eb8129f3f26cb9c1adf5d00ecb4725d3130402f6accfb8d95dd2fed46903673f53232fc2837d39418
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\204C1AA6F6114E6A513754A2AB5760FA_0673414C08DE7F919AE3F6C4CC65AEEE
MD5922e72cb5f5dc6063da8f4849d724a17
SHA133caf696b99f832e6ef560652606c9d00725704f
SHA2566cb7e0fced5f9091d85f4ddcd7ac1ff584677927cf6bfc09c805860b55c8413c
SHA512ed456f74ed63f962499d636eee765b8b16bf5b36a52992ca0840aa6e59777e9820f86cb698fbce7c4fca75fc136f216186e88306e76272e9cbc700f03f0277b8
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD58674a3bd5baa97a5cc649fa98f62f31b
SHA10fdfa65d1f35e26a051bc969f20f1b4ecd3e1dba
SHA256a2cc91e879272dab40043ffc1173bb6f8a9742800d3aadd3a43e83ec28208657
SHA512c5f36c00b323cef8d06a57aa8cd3d4f6c6ecd2ac7f953b5668937f0386aa82afc636c06b65a8a8ae42ace7417c8c717c1e0815a045ea8cb6102c507ef0f33d43
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MD5
b1cd7c031debba3a5c77b39b6791c1a7
SHA1e5d91e14e9c685b06f00e550d9e189deb2075f76
SHA25657ba053f075e0b80f747f3102ed985687c16a8754d109e7c4d33633269a36aaa
SHA512d2bbefdc1effb52a38964c4cec5990a5a226248eca36f99e446c0c5704436f666bf1cb514e73b8991411d497d3325ecc646cbd5065c364e92ab6b9c5f1ad4a72
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MD5
e70ceaf1fc7771d3d791aedc0c2068a7
SHA197912679527c910bdf4c97265656f4c2527245db
SHA2560e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5
SHA5126a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58
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MD5
e70ceaf1fc7771d3d791aedc0c2068a7
SHA197912679527c910bdf4c97265656f4c2527245db
SHA2560e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5
SHA5126a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58
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MD5
146018469ce8690f4da893e0269a1ae7
SHA194ec664dff33827c42cce634dea676b56e4cfb89
SHA25601c0aadd0d9b47985b070d6ab49bc0e7977c632a3c5843efe249a6586f951e09
SHA5128a03bd9719f39f6f99a1f522783cda64680609602c8571dd664c10d73f6336a09ddc3d3d242a1b6f7183f21766b6529a2ea2dd7d6ff54eab07dbe418dfc0c0f4
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MD5
146018469ce8690f4da893e0269a1ae7
SHA194ec664dff33827c42cce634dea676b56e4cfb89
SHA25601c0aadd0d9b47985b070d6ab49bc0e7977c632a3c5843efe249a6586f951e09
SHA5128a03bd9719f39f6f99a1f522783cda64680609602c8571dd664c10d73f6336a09ddc3d3d242a1b6f7183f21766b6529a2ea2dd7d6ff54eab07dbe418dfc0c0f4
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MD5
e70ceaf1fc7771d3d791aedc0c2068a7
SHA197912679527c910bdf4c97265656f4c2527245db
SHA2560e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5
SHA5126a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58
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MD5
e70ceaf1fc7771d3d791aedc0c2068a7
SHA197912679527c910bdf4c97265656f4c2527245db
SHA2560e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5
SHA5126a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58
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MD5
e70ceaf1fc7771d3d791aedc0c2068a7
SHA197912679527c910bdf4c97265656f4c2527245db
SHA2560e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5
SHA5126a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58