Analysis
-
max time kernel
120s -
max time network
142s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
24-01-2022 00:33
Static task
static1
Behavioral task
behavioral1
Sample
be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe
Resource
win10-en-20211208
General
-
Target
be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe
-
Size
95KB
-
MD5
75298c9dbf9784fee95782f5db5c3231
-
SHA1
ea09bf1a3b51f66b41f529615ad78eb4db0c7e8f
-
SHA256
be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7
-
SHA512
2e54261caaa9ed73b74190e459c6eddec2ba120cb45da4d74c56a0f876565cfe2c232e788a6f6502c27db146380658c695515e2ee7cd67d9aa7be240f0d9a927
Malware Config
Extracted
\??\Z:\uR7ZOTnZH.README.txt
blackmatter
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/OEJ8DVY73TL6236QWOHHJFWX
Signatures
-
BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
-
Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\RedoGet.png => C:\Users\Admin\Pictures\RedoGet.png.uR7ZOTnZH be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe File opened for modification C:\Users\Admin\Pictures\RedoGet.png.uR7ZOTnZH be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.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: be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\uR7ZOTnZH.bmp" be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\uR7ZOTnZH.bmp" be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop\WallpaperStyle = "10" be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.uR7ZOTnZH\ = "uR7ZOTnZH" be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\uR7ZOTnZH\DefaultIcon be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\uR7ZOTnZH be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\uR7ZOTnZH\DefaultIcon\ = "C:\\ProgramData\\uR7ZOTnZH.ico" be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.uR7ZOTnZH be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeDebugPrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: 36 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeImpersonatePrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeIncBasePriorityPrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeIncreaseQuotaPrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: 33 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeManageVolumePrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeProfSingleProcessPrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeRestorePrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeSecurityPrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeSystemProfilePrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeTakeOwnershipPrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeShutdownPrivilege 3788 be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe Token: SeBackupPrivilege 3076 vssvc.exe Token: SeRestorePrivilege 3076 vssvc.exe Token: SeAuditPrivilege 3076 vssvc.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe"C:\Users\Admin\AppData\Local\Temp\be5bc29f58b868f4ff8cd66b4526535593e515a697bb8951c625bdfed13cccb7.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3788
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3076