Analysis Overview
SHA256
3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248
Threat Level: Known bad
The file 3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248 was found to be: Known bad.
Malicious Activity Summary
DiamondFox
DiamondFox payload
Executes dropped EXE
UPX packed file
Loads dropped DLL
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2023-08-29 03:06
Signatures
UPX 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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-29 03:06
Reported
2023-08-29 03:09
Platform
win7-20230712-en
Max time kernel
149s
Max time network
153s
Command Line
Signatures
DiamondFox
DiamondFox payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe
"C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe"
C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
"C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe" 0
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| N/A | 100.91.107.79:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | rusav1.icu | udp |
| N/A | 100.73.75.225:80 | rusav1.icu | tcp |
| US | 8.8.8.8:53 | rusav2.icu | udp |
| N/A | 100.84.255.253:80 | rusav2.icu | tcp |
| US | 8.8.8.8:53 | rusav3.icu | udp |
| N/A | 100.89.75.221:80 | rusav3.icu | tcp |
| US | 8.8.8.8:53 | rusav4.icu | udp |
| N/A | 100.93.42.3:80 | rusav4.icu | tcp |
Files
memory/2628-0-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2628-1-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2628-2-0x0000000000320000-0x0000000000335000-memory.dmp
memory/2628-3-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2628-6-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2628-7-0x0000000000400000-0x000000000049C000-memory.dmp
C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
| MD5 | 17a1f7e98731df9b74b98accb650d50e |
| SHA1 | 64a96c0cfd3884f682b1b56f3e9e1b880849694f |
| SHA256 | 3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248 |
| SHA512 | 49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917 |
memory/2628-15-0x0000000002FE0000-0x000000000307C000-memory.dmp
C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
| MD5 | 17a1f7e98731df9b74b98accb650d50e |
| SHA1 | 64a96c0cfd3884f682b1b56f3e9e1b880849694f |
| SHA256 | 3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248 |
| SHA512 | 49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917 |
memory/2916-18-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2628-19-0x0000000000320000-0x0000000000335000-memory.dmp
memory/2628-17-0x0000000000400000-0x000000000049C000-memory.dmp
\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
| MD5 | 17a1f7e98731df9b74b98accb650d50e |
| SHA1 | 64a96c0cfd3884f682b1b56f3e9e1b880849694f |
| SHA256 | 3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248 |
| SHA512 | 49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917 |
memory/2916-21-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2916-24-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2916-28-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2916-29-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2916-30-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2916-31-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2916-32-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2916-36-0x0000000000400000-0x000000000049C000-memory.dmp
memory/2916-39-0x0000000000400000-0x000000000049C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-29 03:06
Reported
2023-08-29 03:09
Platform
win10v2004-20230703-en
Max time kernel
147s
Max time network
149s
Command Line
Signatures
DiamondFox
DiamondFox payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3108 wrote to memory of 4580 | N/A | C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe | C:\Windows\splwow64.exe |
| PID 3108 wrote to memory of 4580 | N/A | C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe | C:\Windows\splwow64.exe |
| PID 3108 wrote to memory of 4180 | N/A | C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe | C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe |
| PID 3108 wrote to memory of 4180 | N/A | C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe | C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe |
| PID 3108 wrote to memory of 4180 | N/A | C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe | C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe
"C:\Users\Admin\AppData\Local\Temp\3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248.exe"
C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
"C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe" 0
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 38.161.102.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 231.102.120.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.212.90.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 108.197.118.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| N/A | 100.71.1.231:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | rusav1.icu | udp |
| N/A | 100.85.86.208:80 | rusav1.icu | tcp |
| US | 8.8.8.8:53 | 231.1.71.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.86.85.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rusav2.icu | udp |
| N/A | 100.103.16.183:80 | rusav2.icu | tcp |
| US | 8.8.8.8:53 | 183.16.103.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 229.216.66.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rusav3.icu | udp |
| N/A | 100.104.162.187:80 | rusav3.icu | tcp |
| US | 8.8.8.8:53 | 187.162.104.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rusav4.icu | udp |
| N/A | 100.112.150.104:80 | rusav4.icu | tcp |
| US | 8.8.8.8:53 | 104.150.112.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.13.113.100.in-addr.arpa | udp |
Files
memory/3108-0-0x0000000000400000-0x000000000049C000-memory.dmp
memory/3108-1-0x0000000000400000-0x000000000049C000-memory.dmp
memory/3108-2-0x00000000005C0000-0x00000000005D5000-memory.dmp
memory/3108-3-0x0000000000400000-0x000000000049C000-memory.dmp
memory/3108-5-0x0000000000400000-0x000000000049C000-memory.dmp
C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
| MD5 | 17a1f7e98731df9b74b98accb650d50e |
| SHA1 | 64a96c0cfd3884f682b1b56f3e9e1b880849694f |
| SHA256 | 3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248 |
| SHA512 | 49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917 |
C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
| MD5 | 17a1f7e98731df9b74b98accb650d50e |
| SHA1 | 64a96c0cfd3884f682b1b56f3e9e1b880849694f |
| SHA256 | 3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248 |
| SHA512 | 49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917 |
C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
| MD5 | 17a1f7e98731df9b74b98accb650d50e |
| SHA1 | 64a96c0cfd3884f682b1b56f3e9e1b880849694f |
| SHA256 | 3ef2a739073edef534d6bbd2c426cf8e2285544d03afe33ce64526f3e5926248 |
| SHA512 | 49ad8edbd470c2fd32a1317288634b6411da106510527117808b3c2eb78685c1ceb69d93eaa2047cabce5bb7da9901a00c10e071f7482d2ee5bb6af231380917 |
memory/3108-20-0x0000000000400000-0x000000000049C000-memory.dmp
memory/3108-21-0x00000000005C0000-0x00000000005D5000-memory.dmp
memory/4180-22-0x0000000000400000-0x000000000049C000-memory.dmp
memory/4180-23-0x0000000000400000-0x000000000049C000-memory.dmp
memory/4180-25-0x0000000000400000-0x000000000049C000-memory.dmp
memory/4180-28-0x0000000000400000-0x000000000049C000-memory.dmp
memory/4180-31-0x0000000000400000-0x000000000049C000-memory.dmp
memory/4180-34-0x0000000000400000-0x000000000049C000-memory.dmp
memory/4180-37-0x0000000000400000-0x000000000049C000-memory.dmp