Analysis Overview
SHA256
b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09
Threat Level: Known bad
The file b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe was found to be: Known bad.
Malicious Activity Summary
BlackNET Payload
Contains code to disable Windows Defender
BlackNET
Blacknet family
Adds Run key to start application
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-11 01:20
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 01:20
Reported
2022-04-11 01:40
Platform
win7-20220311-en
Max time kernel
4294072s
Max time network
148s
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-1-5-21-2199625441-3471261906-229485034-1000\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/912-54-0x000007FEEF150000-0x000007FEF01E6000-memory.dmp
memory/912-55-0x0000000000B40000-0x0000000000B42000-memory.dmp
memory/912-56-0x0000000000B46000-0x0000000000B65000-memory.dmp
memory/912-57-0x0000000000B7C000-0x0000000000B7E000-memory.dmp
memory/912-58-0x0000000000B73000-0x0000000000B79000-memory.dmp
memory/912-59-0x0000000000B89000-0x0000000000B8B000-memory.dmp
memory/912-60-0x0000000000B8B000-0x0000000000B8D000-memory.dmp
memory/912-61-0x0000000000B6D000-0x0000000000B6F000-memory.dmp
memory/912-62-0x0000000000B7E000-0x0000000000B80000-memory.dmp
memory/912-63-0x0000000000B6B000-0x0000000000B6D000-memory.dmp
memory/912-64-0x0000000000B81000-0x0000000000B85000-memory.dmp
memory/912-65-0x0000000000B6F000-0x0000000000B75000-memory.dmp
memory/912-66-0x0000000000B85000-0x0000000000B87000-memory.dmp
memory/912-67-0x0000000000B87000-0x0000000000B89000-memory.dmp
memory/912-68-0x0000000000B81000-0x0000000000B86000-memory.dmp
memory/912-69-0x0000000000B8D000-0x0000000000B91000-memory.dmp
memory/912-70-0x0000000000B7C000-0x0000000000B7F000-memory.dmp
memory/912-71-0x0000000000B72000-0x0000000000B77000-memory.dmp
memory/1656-72-0x0000000000000000-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/1656-75-0x000007FEEF150000-0x000007FEF01E6000-memory.dmp
memory/1656-76-0x0000000000C10000-0x0000000000C12000-memory.dmp
memory/1656-77-0x0000000000C16000-0x0000000000C35000-memory.dmp
memory/1656-79-0x0000000000C75000-0x0000000000C7C000-memory.dmp
memory/1656-78-0x0000000000C4C000-0x0000000000C4E000-memory.dmp
memory/1656-82-0x0000000000C51000-0x0000000000C53000-memory.dmp
memory/1656-81-0x0000000000C5D000-0x0000000000C6C000-memory.dmp
memory/1656-83-0x0000000000C53000-0x0000000000C55000-memory.dmp
memory/1656-91-0x0000000000C65000-0x0000000000C69000-memory.dmp
memory/1656-93-0x0000000000C6D000-0x0000000000C71000-memory.dmp
memory/1656-92-0x0000000000C69000-0x0000000000C6D000-memory.dmp
memory/1656-89-0x0000000000C5D000-0x0000000000C61000-memory.dmp
memory/1656-90-0x0000000000C61000-0x0000000000C65000-memory.dmp
memory/1656-88-0x0000000000C5B000-0x0000000000C5D000-memory.dmp
memory/1656-87-0x0000000000C59000-0x0000000000C5B000-memory.dmp
memory/1656-94-0x0000000000C71000-0x0000000000C75000-memory.dmp
memory/1656-95-0x0000000000C75000-0x0000000000C79000-memory.dmp
memory/1656-86-0x0000000000C3B000-0x0000000000C49000-memory.dmp
memory/1656-85-0x0000000000C57000-0x0000000000C59000-memory.dmp
memory/1656-84-0x0000000000C55000-0x0000000000C57000-memory.dmp
memory/1656-80-0x0000000000C4E000-0x0000000000C50000-memory.dmp
memory/1656-97-0x0000000000C4A000-0x0000000000C4F000-memory.dmp
memory/1656-96-0x0000000000C79000-0x0000000000C7D000-memory.dmp
memory/1656-98-0x0000000000C51000-0x0000000000C58000-memory.dmp
memory/1656-99-0x0000000000C55000-0x0000000000C58000-memory.dmp
memory/2036-100-0x0000000000000000-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/2036-104-0x0000000000100000-0x0000000000102000-memory.dmp
memory/2036-103-0x000007FEEF150000-0x000007FEF01E6000-memory.dmp
memory/2036-105-0x0000000000106000-0x0000000000125000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-04-11 01:20
Reported
2022-04-11 01:37
Platform
win10v2004-20220331-en
Max time kernel
110s
Max time network
140s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5024 wrote to memory of 5036 | N/A | C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe | C:\Windows\system32\fondue.exe |
| PID 5024 wrote to memory of 5036 | 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 |
| IE | 20.54.89.15:443 | tcp | |
| IE | 20.50.73.10:443 | tcp | |
| SE | 178.79.212.129:80 | tcp | |
| SE | 178.79.212.129:80 | tcp | |
| FI | 62.115.252.112:80 | tcp | |
| US | 8.8.8.8:53 | 15.89.54.20.in-addr.arpa | udp |
| US | 204.79.197.203:80 | tcp | |
| US | 8.8.8.8:53 | d.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.5.0.8.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/5036-124-0x0000000000000000-mapping.dmp