Analysis
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max time kernel
117s -
max time network
151s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
05-10-2021 10:30
Static task
static1
Behavioral task
behavioral1
Sample
9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe
Resource
win10-en-20210920
General
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Target
9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe
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Size
78KB
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MD5
d298d54961823dd20b7a4d14b9326964
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SHA1
5b70fd4f2ef2000cf2af1d2eb8a5158cc8802c90
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SHA256
9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a
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SHA512
64be2de822607f8d85066a972468528706133cc3133f90f0fb51cd5874e83d0bce5d240d9aabc021730dbd654a26069933850db5de895011fc4d4045564ba6ca
Malware Config
Extracted
\??\Z:\AVx2lZV2X.README.txt
blackmatter
http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/1ILW209PJZUAJJEX
Signatures
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BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
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suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (nowautomation .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (nowautomation .com)
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Modifies extensions of user files 21 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\DisconnectMerge.png => C:\Users\Admin\Pictures\DisconnectMerge.png.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\PingUnblock.raw.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\StepEnable.tif.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\ConvertDismount.raw => C:\Users\Admin\Pictures\ConvertDismount.raw.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\ConvertDismount.raw.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\WaitUninstall.tiff => C:\Users\Admin\Pictures\WaitUninstall.tiff.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\WaitUninstall.tiff.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\UnregisterRestart.tif => C:\Users\Admin\Pictures\UnregisterRestart.tif.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\UnregisterRestart.tif.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\DisconnectMerge.png.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\EditReceive.png => C:\Users\Admin\Pictures\EditReceive.png.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\ExportClear.tif => C:\Users\Admin\Pictures\ExportClear.tif.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\ExportRemove.png.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\PingUnblock.raw => C:\Users\Admin\Pictures\PingUnblock.raw.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\StepEnable.tif => C:\Users\Admin\Pictures\StepEnable.tif.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\WaitUninstall.tiff 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\EditReceive.png.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\ExportClear.tif.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\ExportRemove.png => C:\Users\Admin\Pictures\ExportRemove.png.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File renamed C:\Users\Admin\Pictures\SetSwitch.crw => C:\Users\Admin\Pictures\SetSwitch.crw.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe File opened for modification C:\Users\Admin\Pictures\SetSwitch.crw.AVx2lZV2X 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\Z: 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\AVx2lZV2X.bmp" 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\AVx2lZV2X.bmp" 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe -
Modifies Control Panel 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\International 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Key created \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Control Panel\Desktop\WallpaperStyle = "10" 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeDebugPrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: 36 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeImpersonatePrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeIncBasePriorityPrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeIncreaseQuotaPrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: 33 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeManageVolumePrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeProfSingleProcessPrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeRestorePrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeSecurityPrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeSystemProfilePrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeTakeOwnershipPrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeShutdownPrivilege 2056 9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe Token: SeBackupPrivilege 3164 vssvc.exe Token: SeRestorePrivilege 3164 vssvc.exe Token: SeAuditPrivilege 3164 vssvc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe"C:\Users\Admin\AppData\Local\Temp\9cf9441554ac727f9d191ad9de1dc101867ffe5264699cafcf2734a4b89d5d6a.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2056
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3164