Analysis Overview
SHA256
b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09
Threat Level: Known bad
The file b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe was found to be: Known bad.
Malicious Activity Summary
Blacknet family
BlackNET
BlackNET Payload
Contains code to disable Windows Defender
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
2022-04-12 07:22
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
2022-04-12 07:22
Reported
2022-04-12 08:09
Platform
win7-20220331-en
Max time kernel
17s
Max time network
145s
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-1-5-21-3422572840-2899912402-917774768-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe" | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | N/A |
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/1100-54-0x000007FEF2C30000-0x000007FEF3CC6000-memory.dmp
memory/1100-55-0x0000000001FE0000-0x0000000001FE2000-memory.dmp
memory/1100-56-0x0000000001FE6000-0x0000000002005000-memory.dmp
memory/1100-59-0x0000000002021000-0x0000000002023000-memory.dmp
memory/1100-61-0x0000000002025000-0x0000000002027000-memory.dmp
memory/1100-63-0x0000000002029000-0x000000000202B000-memory.dmp
memory/1100-62-0x0000000002027000-0x0000000002029000-memory.dmp
memory/1100-60-0x0000000002023000-0x0000000002025000-memory.dmp
memory/1100-58-0x000000000201F000-0x0000000002021000-memory.dmp
memory/1100-57-0x000000000201D000-0x000000000201F000-memory.dmp
memory/1808-64-0x0000000000000000-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/1808-68-0x0000000000C00000-0x0000000000C02000-memory.dmp
memory/1808-67-0x000007FEF2C30000-0x000007FEF3CC6000-memory.dmp
memory/1808-69-0x0000000000C06000-0x0000000000C25000-memory.dmp
memory/1808-70-0x0000000000C3D000-0x0000000000C3F000-memory.dmp
memory/1808-71-0x0000000000C2F000-0x0000000000C35000-memory.dmp
memory/1808-72-0x0000000000C3F000-0x0000000000C41000-memory.dmp
memory/1808-73-0x0000000000C41000-0x0000000000C43000-memory.dmp
memory/1808-74-0x0000000000C43000-0x0000000000C45000-memory.dmp
memory/1808-76-0x0000000000C47000-0x0000000000C49000-memory.dmp
memory/1808-75-0x0000000000C45000-0x0000000000C47000-memory.dmp
memory/1808-78-0x0000000000C4B000-0x0000000000C4D000-memory.dmp
memory/1808-77-0x0000000000C49000-0x0000000000C4B000-memory.dmp
memory/1808-79-0x0000000000C4D000-0x0000000000C4F000-memory.dmp
memory/1808-81-0x0000000000C53000-0x0000000000C57000-memory.dmp
memory/1808-82-0x0000000000C3C000-0x0000000000C40000-memory.dmp
memory/1808-80-0x0000000000C4F000-0x0000000000C53000-memory.dmp
memory/1808-83-0x0000000000C30000-0x0000000000C32000-memory.dmp
memory/1808-84-0x0000000000C39000-0x0000000000C3E000-memory.dmp
memory/1808-85-0x0000000000C40000-0x0000000000C43000-memory.dmp
memory/1808-86-0x0000000000C57000-0x0000000000C59000-memory.dmp
memory/1808-87-0x0000000000C5B000-0x0000000000C5D000-memory.dmp
memory/1808-88-0x0000000000C5D000-0x0000000000C5F000-memory.dmp
memory/1808-89-0x0000000000C5F000-0x0000000000C61000-memory.dmp
memory/1808-90-0x0000000000C36000-0x0000000000C38000-memory.dmp
memory/1808-91-0x0000000000C4B000-0x0000000000C4E000-memory.dmp
memory/2040-92-0x0000000000000000-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/2040-95-0x000007FEF2C30000-0x000007FEF3CC6000-memory.dmp
memory/2040-96-0x0000000000AD0000-0x0000000000AD2000-memory.dmp
memory/2040-97-0x0000000000AD6000-0x0000000000AF5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-04-12 07:22
Reported
2022-04-12 08:09
Platform
win10v2004-20220331-en
Max time kernel
135s
Max time network
153s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4736 wrote to memory of 4636 | N/A | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | C:\Windows\system32\fondue.exe |
| PID 4736 wrote to memory of 4636 | 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 |
| FI | 62.115.252.112:80 | tcp | |
| IE | 20.54.89.106:443 | tcp | |
| US | 20.189.173.11:443 | tcp | |
| IE | 20.54.89.106:443 | tcp | |
| SE | 178.79.212.129:80 | tcp | |
| SE | 178.79.212.129:80 | tcp | |
| SE | 178.79.212.129:80 | tcp | |
| IE | 20.54.89.106:443 | tcp | |
| US | 8.8.8.8:53 | crl4.digicert.com | udp |
| US | 93.184.220.29:80 | crl4.digicert.com | tcp |
| IE | 20.54.89.106:443 | tcp | |
| IE | 20.54.89.106:443 | tcp | |
| IE | 20.54.89.106:443 | tcp |
Files
memory/4636-124-0x0000000000000000-mapping.dmp