Analysis Overview
SHA256
b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09
Threat Level: Known bad
The file b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe was found to be: Known bad.
Malicious Activity Summary
Blacknet family
Contains code to disable Windows Defender
BlackNET Payload
BlackNET
Adds Run key to start application
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-11 07:20
Signatures
BlackNET Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blacknet family
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-11 07:20
Reported
2022-04-11 07:39
Platform
win7-20220310-en
Max time kernel
4294079s
Max time network
153s
Command Line
Signatures
BlackNET
BlackNET Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe" | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe
"C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | finalb.xyz | udp |
Files
memory/1268-54-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-55-0x000007FEEE0C0000-0x000007FEEF156000-memory.dmp
memory/1268-56-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-57-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-58-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-59-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-60-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-61-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-62-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-63-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-64-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-65-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-66-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-67-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-68-0x000000001E7E0000-0x000000001E7E9000-memory.dmp
memory/1268-69-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-70-0x000000001E7E9000-0x000000001E7F1000-memory.dmp
memory/1268-71-0x000000001E7F9000-0x000000001E801000-memory.dmp
memory/1268-72-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-73-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-74-0x000000001E7F1000-0x000000001E7F9000-memory.dmp
memory/1268-75-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-76-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-77-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-78-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-80-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-79-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-81-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-82-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1268-83-0x0000000000500000-0x0000000000580000-memory.dmp
memory/1732-84-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | c4f79edc4498c5570495bb36fc942134 |
| SHA1 | 00046b588252502480e8e708a22d25ae1d9b05fa |
| SHA256 | b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09 |
| SHA512 | 07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef |
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | c4f79edc4498c5570495bb36fc942134 |
| SHA1 | 00046b588252502480e8e708a22d25ae1d9b05fa |
| SHA256 | b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09 |
| SHA512 | 07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef |
memory/1732-87-0x000007FEEE0C0000-0x000007FEEF156000-memory.dmp
memory/1732-88-0x0000000000A10000-0x0000000000A12000-memory.dmp
memory/1732-89-0x0000000000A16000-0x0000000000A35000-memory.dmp
memory/1732-90-0x0000000000A4C000-0x0000000000A4E000-memory.dmp
memory/1732-91-0x0000000000A4E000-0x0000000000A50000-memory.dmp
memory/1732-92-0x0000000000A3B000-0x0000000000A3E000-memory.dmp
memory/1732-93-0x0000000000A47000-0x0000000000A4E000-memory.dmp
memory/1732-94-0x0000000000A3B000-0x0000000000A41000-memory.dmp
memory/1732-95-0x0000000000A3D000-0x0000000000A42000-memory.dmp
memory/1732-96-0x0000000000A40000-0x0000000000A44000-memory.dmp
memory/1732-97-0x0000000000A51000-0x0000000000A53000-memory.dmp
memory/1732-98-0x0000000000A53000-0x0000000000A55000-memory.dmp
memory/1732-99-0x0000000000A55000-0x0000000000A57000-memory.dmp
memory/1732-100-0x0000000000A57000-0x0000000000A59000-memory.dmp
memory/1732-101-0x0000000000A59000-0x0000000000A5B000-memory.dmp
memory/1732-102-0x0000000000A5B000-0x0000000000A5D000-memory.dmp
memory/1732-103-0x0000000000A5D000-0x0000000000A61000-memory.dmp
memory/1732-104-0x0000000000A4A000-0x0000000000A4F000-memory.dmp
memory/1732-105-0x0000000000A3C000-0x0000000000A47000-memory.dmp
memory/1732-106-0x0000000000A51000-0x0000000000A54000-memory.dmp
memory/1732-107-0x0000000000A3C000-0x0000000000A42000-memory.dmp
memory/892-108-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe
| MD5 | 89dd6e72358a669b7d6e2348307a7af7 |
| SHA1 | 0db348f3c6114a45d71f4d218e0e088b71c7bb0a |
| SHA256 | ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e |
| SHA512 | 93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b |
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe
| MD5 | 89dd6e72358a669b7d6e2348307a7af7 |
| SHA1 | 0db348f3c6114a45d71f4d218e0e088b71c7bb0a |
| SHA256 | ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e |
| SHA512 | 93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b |
memory/892-111-0x000007FEEE0C0000-0x000007FEEF156000-memory.dmp
memory/892-112-0x00000000009E0000-0x00000000009E2000-memory.dmp
memory/892-113-0x00000000009E6000-0x0000000000A05000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-04-11 07:20
Reported
2022-04-11 07:41
Platform
win10v2004-20220331-en
Max time kernel
110s
Max time network
151s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4252 wrote to memory of 4916 | N/A | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | C:\Windows\system32\fondue.exe |
| PID 4252 wrote to memory of 4916 | N/A | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | C:\Windows\system32\fondue.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe
"C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe"
C:\Windows\system32\fondue.exe
"C:\Windows\system32\fondue.exe" /enable-feature:NetFx3 /caller-name:mscoreei.dll
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 40.125.122.151:443 | tcp | |
| US | 20.189.173.2:443 | tcp | |
| NL | 20.190.160.7:443 | tcp | |
| FI | 62.115.252.81:80 | tcp | |
| FI | 62.115.252.81:80 | tcp | |
| FI | 62.115.252.81:80 | tcp | |
| US | 8.8.8.8:53 | 96.108.152.52.in-addr.arpa | udp |
| US | 131.253.33.203:80 | tcp |
Files
memory/4916-124-0x0000000000000000-mapping.dmp