Analysis Overview
SHA256
fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2
Threat Level: Known bad
The file fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample was found to be: Known bad.
Malicious Activity Summary
BlackMatter Ransomware
Modifies extensions of user files
Enumerates connected drives
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of AdjustPrivilegeToken
Modifies Control Panel
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-10-19 13:58
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-10-19 13:58
Reported
2021-10-19 14:00
Platform
win7-en-20210920
Max time kernel
122s
Max time network
129s
Command Line
Signatures
BlackMatter Ransomware
Modifies extensions of user files
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\chkvc3MvG.bmp" | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\chkvc3MvG.bmp" | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
Modifies Control Panel
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Control Panel\International | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Control Panel\Desktop | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Processes
C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe
"C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | fluentzip.org | udp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| FR | 5.39.3.130:80 | fluentzip.org | tcp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
Files
memory/1268-54-0x00000000751A1000-0x00000000751A3000-memory.dmp
memory/1268-55-0x0000000000955000-0x0000000000966000-memory.dmp
memory/1268-56-0x0000000000950000-0x0000000000951000-memory.dmp
memory/1268-57-0x0000000000966000-0x0000000000967000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-10-19 13:58
Reported
2021-10-19 14:00
Platform
win10-en-20211014
Max time kernel
121s
Max time network
129s
Command Line
Signatures
BlackMatter Ransomware
Modifies extensions of user files
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\Z: | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\WRLMMTHME.bmp" | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\WRLMMTHME.bmp" | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
Modifies Control Panel
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\International | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Processes
C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe
"C:\Users\Admin\AppData\Local\Temp\fe2b2beeff98cae90f58a5b2f01dab31eaa98d274757a7dd9f70f4dc8432a6e2.bin.sample.exe"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
Network
| Country | Destination | Domain | Proto |
| IE | 52.109.76.32:443 | tcp | |
| US | 8.8.8.8:53 | time.windows.com | udp |
| NL | 20.101.57.9:123 | time.windows.com | udp |
| US | 8.8.8.8:53 | fluentzip.org | udp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| FR | 5.39.3.130:443 | fluentzip.org | tcp |
| US | 8.8.8.8:53 | s.symcb.com | udp |
| US | 72.21.91.29:80 | s.symcb.com | tcp |
| US | 8.8.8.8:53 | ts-crl.ws.symantec.com | udp |
| US | 93.184.220.29:80 | ts-crl.ws.symantec.com | tcp |
Files
memory/2160-115-0x00000000030C3000-0x00000000030C5000-memory.dmp
memory/2160-116-0x00000000030C0000-0x00000000030C1000-memory.dmp