Analysis Overview
SHA256
c3cc8efd60b85139c9b9f4c62c56ffbafde26c1b22cd7b339a371afde7fc513b
Threat Level: Known bad
The file 3df675b0800e6fc57c81271c440327c4 was found to be: Known bad.
Malicious Activity Summary
BlackMatter Ransomware
Renames multiple (161) files with added filename extension
Renames multiple (141) files with added filename extension
VMProtect packed file
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Unsigned PE
Modifies Control Panel
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Uses Volume Shadow Copy service COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-01 21:46
Signatures
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-01 21:46
Reported
2024-01-01 21:48
Platform
win7-20231129-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
BlackMatter Ransomware
Renames multiple (161) files with added filename extension
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\FLNjIiJjs.bmp" | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\FLNjIiJjs.bmp" | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
Modifies Control Panel
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe
"C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
Network
Files
memory/2216-1-0x0000000000400000-0x0000000000BA4000-memory.dmp
memory/2216-3-0x0000000000400000-0x0000000000BA4000-memory.dmp
memory/2216-4-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/2216-0-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/2216-6-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/2216-9-0x0000000077150000-0x0000000077151000-memory.dmp
memory/2216-10-0x0000000002480000-0x00000000024C0000-memory.dmp
F:\FLNjIiJjs.README.txt
| MD5 | e25ee5b580fcb49e00a481b656c2022a |
| SHA1 | e5bb6f852b1d454a6afd66e5465fc3b89b0b9516 |
| SHA256 | 1e45f64d3a9e3de8c1e270363349c62d346cbe744e3c31a50bcf65544a894a98 |
| SHA512 | 3be30a96c432b3eb4875da5b4ea4ee799a73b9d787544265da368e77011975b1816bf0f8eb796cd1d716b91ed4f0e937f2fff8da4e9288ed010d5c8e0e44caea |
memory/2216-233-0x0000000000400000-0x0000000000BA4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-01 21:46
Reported
2024-01-01 21:49
Platform
win10v2004-20231215-en
Max time kernel
144s
Max time network
152s
Command Line
Signatures
BlackMatter Ransomware
Renames multiple (141) files with added filename extension
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\jHFUHx9Uc.bmp" | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\jHFUHx9Uc.bmp" | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
Modifies Control Panel
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\Desktop | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe
"C:\Users\Admin\AppData\Local\Temp\3df675b0800e6fc57c81271c440327c4.exe"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 149.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.234.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.53.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 195.233.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.71.105.51.in-addr.arpa | udp |
Files
memory/4724-0-0x0000000000400000-0x0000000000BA4000-memory.dmp
memory/4724-1-0x0000000000DD0000-0x0000000000DD1000-memory.dmp
memory/4724-2-0x0000000000400000-0x0000000000BA4000-memory.dmp
memory/4724-4-0x0000000002950000-0x0000000002960000-memory.dmp
memory/4724-5-0x0000000002950000-0x0000000002960000-memory.dmp
F:\jHFUHx9Uc.README.txt
| MD5 | e25ee5b580fcb49e00a481b656c2022a |
| SHA1 | e5bb6f852b1d454a6afd66e5465fc3b89b0b9516 |
| SHA256 | 1e45f64d3a9e3de8c1e270363349c62d346cbe744e3c31a50bcf65544a894a98 |
| SHA512 | 3be30a96c432b3eb4875da5b4ea4ee799a73b9d787544265da368e77011975b1816bf0f8eb796cd1d716b91ed4f0e937f2fff8da4e9288ed010d5c8e0e44caea |
memory/4724-237-0x0000000000400000-0x0000000000BA4000-memory.dmp