Analysis Overview
SHA256
1b097c4ab07dc3b02f53fdc70e99633fcacc50a9ba90c05a03032cff007ed7f1
Threat Level: Known bad
The file 2025-05-19_05762e74815f254df58070e7b3410754_black-basta_cobalt-strike_hijackloader was found to be: Known bad.
Malicious Activity Summary
Phorphiex family
Phorphiex payload
Phorphiex, Phorpiex
Downloads MZ/PE file
Executes dropped EXE
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V16
Analysis: static1
Detonation Overview
Reported
2025-05-19 22:24
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-05-19 22:24
Reported
2025-05-19 22:26
Platform
win10v2004-20250502-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Phorphiex family
Phorphiex payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Phorphiex, Phorpiex
Downloads MZ/PE file
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\851E.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2025-05-19_05762e74815f254df58070e7b3410754_black-basta_cobalt-strike_hijackloader.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\851E.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1799611275.exe | N/A |
| N/A | N/A | C:\Windows\syscrondvr.exe | N/A |
| N/A | N/A | C:\Windows\syscrondvr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2872912489.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\syscrondvr.exe" | C:\Users\Admin\AppData\Local\Temp\1799611275.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\syscrondvr.exe | C:\Users\Admin\AppData\Local\Temp\1799611275.exe | N/A |
| File opened for modification | C:\Windows\syscrondvr.exe | C:\Users\Admin\AppData\Local\Temp\1799611275.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\851E.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\1799611275.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\syscrondvr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2872912489.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2025-05-19_05762e74815f254df58070e7b3410754_black-basta_cobalt-strike_hijackloader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-05-19_05762e74815f254df58070e7b3410754_black-basta_cobalt-strike_hijackloader.exe"
C:\Users\Admin\AppData\Local\Temp\851E.exe
"C:\Users\Admin\AppData\Local\Temp\851E.exe"
C:\Users\Admin\AppData\Local\Temp\1799611275.exe
C:\Users\Admin\AppData\Local\Temp\1799611275.exe
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\syscrondvr.exe
C:\Windows\syscrondvr.exe
C:\Windows\syscrondvr.exe
C:\Windows\syscrondvr.exe
C:\Windows\syscrondvr.exe
C:\Users\Admin\AppData\Local\Temp\2872912489.exe
C:\Users\Admin\AppData\Local\Temp\2872912489.exe
Network
| Country | Destination | Domain | Proto |
| UA | 185.156.72.39:80 | 185.156.72.39 | tcp |
| IE | 23.216.155.171:443 | www.bing.com | tcp |
| UA | 185.156.72.39:80 | 185.156.72.39 | tcp |
| UA | 185.156.72.39:80 | 185.156.72.39 | tcp |
| UA | 185.156.72.39:80 | 185.156.72.39 | tcp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| NL | 45.141.233.6:80 | 45.141.233.6 | tcp |
| US | 8.8.8.8:53 | www.update.microsoft.com | udp |
| US | 20.109.209.108:80 | www.update.microsoft.com | tcp |
| SY | 93.113.165.136:40500 | udp | |
| MX | 189.230.129.21:40500 | tcp | |
| IR | 212.120.199.18:40500 | udp | |
| KZ | 95.56.106.27:40500 | udp | |
| YE | 134.35.238.16:40500 | udp | |
| SY | 185.209.32.186:40500 | udp | |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 216.58.201.99:80 | c.pki.goog | tcp |
| KZ | 37.150.50.52:40500 | udp | |
| MX | 187.194.169.243:40500 | tcp | |
| RS | 78.109.103.103:40500 | udp | |
| CN | 113.118.42.68:40500 | udp | |
| YE | 134.35.166.30:40500 | udp | |
| KZ | 178.88.150.172:40500 | udp | |
| IR | 93.115.239.2:40500 | udp | |
| PK | 175.107.23.34:40500 | tcp | |
| UZ | 94.141.68.204:40500 | udp | |
| KZ | 5.76.12.137:40500 | udp | |
| KZ | 5.251.11.215:40500 | udp | |
| UZ | 94.230.229.90:40500 | udp | |
| UZ | 198.163.193.70:40500 | udp | |
| BA | 5.43.127.65:40500 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\851E.exe
| MD5 | 0ec46393976eb51f307cc11d80bae845 |
| SHA1 | 69d4cb168f3a1b97c37a0ba1519d0adb1ff7e245 |
| SHA256 | 252171bdaa35d19f872c165e861b03d347a4afb85d7a03d02f8eae09d191038d |
| SHA512 | 803351760e3c422e4825103235e13085004b3418b483a2c646aafaef62b7212a1ba4ed28469134a236c5b6121e6a748ba958bbae2dbe4afe9f9f45704928d31f |
C:\Users\Admin\AppData\Local\Temp\1799611275.exe
| MD5 | f30fdbf3448f67cbc3566f31729cb7a6 |
| SHA1 | fbf005c38f4a1c2e86817a2cb70406fc241f2c90 |
| SHA256 | 81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8 |
| SHA512 | b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8 |
C:\Users\Admin\AppData\Local\Temp\2872912489.exe
| MD5 | c08cfa523c9377d3ae24fdb373b3ae13 |
| SHA1 | 5289219770ad28b0fa4f0bdd91817f76bd6be222 |
| SHA256 | 326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0 |
| SHA512 | c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c |