Analysis Overview
SHA256
73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9
Threat Level: Shows suspicious behavior
The file 73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
Writes to the Master Boot Record (MBR)
Checks installed software on the system
Drops file in Program Files directory
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-23 10:39
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-23 10:38
Reported
2024-02-23 10:41
Platform
win7-20240221-en
Max time kernel
122s
Max time network
127s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | N/A |
Checks installed software on the system
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\LuDaShi\{7827E103-8708-4475-8628-61DD99B6A687}.tf | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | N/A |
| File created | C:\Program Files (x86)\LuDaShi\{59754265-1136-4c99-B802-81658BD72C7E}.tmp\{1B8652B4-D1C0-43f7-A5C9-E918B97DF8D7}.tf | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2196 wrote to memory of 2156 | N/A | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2196 wrote to memory of 2156 | N/A | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2196 wrote to memory of 2156 | N/A | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2196 wrote to memory of 2156 | N/A | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe
"C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2196 -s 876
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | s.ludashi.com | udp |
| US | 8.8.8.8:53 | www.ludashi.com | udp |
| CN | 114.116.39.220:80 | www.ludashi.com | tcp |
| CN | 106.15.136.209:80 | s.ludashi.com | tcp |
| CN | 106.15.136.209:80 | s.ludashi.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\{FAAB8470-693B-4d68-8D3E-EAA2114F2B89}.tmp\7z.dll
| MD5 | e8955e395ab5a6800447fe8256bb461e |
| SHA1 | bf6e5dc3007167f4b768f75a3319e4026ed76410 |
| SHA256 | cf842130c2cf49ba5a12a33b4a1ec984e31a54c98f7d7aaf431c2ae5ea677e6c |
| SHA512 | 18cedfb8ca5b522a5b3a1dbd2de78c694feb231eeb547ab1c52510a8ec93d2a77edae7a296e0145f4918f995fd0819947d0ade26b88e09ac8e1cd257a556bdf1 |
C:\Users\Admin\AppData\Local\Temp\{07D4C24F-DEAE-4bcd-838C-4700E80615A7}.tmp\NetBridge.dll
| MD5 | 9d145902fb5b9a6da62ac85761434e31 |
| SHA1 | c817d77f59e3767d75cf5f5298d6b5711308f7e5 |
| SHA256 | 98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43 |
| SHA512 | bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9 |
memory/2196-27-0x00000000003D0000-0x00000000003D1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-23 10:38
Reported
2024-02-23 10:41
Platform
win10v2004-20240221-en
Max time kernel
126s
Max time network
144s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | N/A |
Checks installed software on the system
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe
"C:\Users\Admin\AppData\Local\Temp\73e36a2a49d6dd231a294b9d93aa7d8ebf272a17eb0a4a27d5f76f99ab7167e9.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | s.ludashi.com | udp |
| US | 8.8.8.8:53 | www.ludashi.com | udp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 114.116.39.220:80 | www.ludashi.com | tcp |
| US | 8.8.8.8:53 | 23.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| US | 8.8.8.8:53 | 205.178.17.96.in-addr.arpa | udp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
| CN | 101.132.120.17:80 | s.ludashi.com | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\{DB4ADBE0-2AD9-4bd1-9AC0-282703516266}.tmp\7z.dll
| MD5 | 2706693dda10c6cc79eed24c56d4e5ef |
| SHA1 | 4f34ef1bd49273a0d260b9dab15c73eb0ccb6383 |
| SHA256 | 0edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3 |
| SHA512 | 7e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c |
C:\Users\Admin\AppData\Local\Temp\{35B83C9C-02E4-4026-A225-150E2EF609CA}.tmp\NetBridge.dll
| MD5 | 9d145902fb5b9a6da62ac85761434e31 |
| SHA1 | c817d77f59e3767d75cf5f5298d6b5711308f7e5 |
| SHA256 | 98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43 |
| SHA512 | bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9 |