Analysis Overview
SHA256
c47f904de040740820b09c3790e111189266a14875ac4422ae1002be5f4eab5d
Threat Level: Shows suspicious behavior
The file b249c3b71582873b624c95ca35749e4c was found to be: Shows suspicious behavior.
Malicious Activity Summary
Checks computer location settings
Adds Run key to start application
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-04 13:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-04 13:52
Reported
2024-03-04 13:54
Platform
win7-20240221-en
Max time kernel
117s
Max time network
118s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart" | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | N/A |
Drops file in Windows directory
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2272 wrote to memory of 2604 | N/A | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2272 wrote to memory of 2604 | N/A | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2272 wrote to memory of 2604 | N/A | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2272 wrote to memory of 2604 | N/A | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe
"C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Windows\bugMAKER.bat
Network
Files
C:\Windows\bugMAKER.bat
| MD5 | 7e8909952d5e1817201f31584fc4cc06 |
| SHA1 | 833558bdebdee2b412d9e6941c89c2607fb2b574 |
| SHA256 | a2e4a0f4067c5d5be575bb078cba5670744a84b06ddf7a6cf48ed5dd5f138a9b |
| SHA512 | 10997ef6181227f51aaa2fbe25aab84ddeebf0ac113795149834c1b8297c2244fec9b60ef9ed5b4e993100652d1731070592c68e1366796bc810786571cb6e7a |
memory/2604-62-0x00000000025D0000-0x00000000025D1000-memory.dmp
memory/2272-67-0x0000000000400000-0x000000000042D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-04 13:52
Reported
2024-03-04 13:54
Platform
win10v2004-20240226-en
Max time kernel
93s
Max time network
128s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\cmd.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart" | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | N/A |
Drops file in Windows directory
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3384 wrote to memory of 1908 | N/A | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3384 wrote to memory of 1908 | N/A | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3384 wrote to memory of 1908 | N/A | C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe
"C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\bugMAKER.bat
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 23.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 202.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 170.191.110.104.in-addr.arpa | udp |
Files
C:\Windows\bugMAKER.bat
| MD5 | 7e8909952d5e1817201f31584fc4cc06 |
| SHA1 | 833558bdebdee2b412d9e6941c89c2607fb2b574 |
| SHA256 | a2e4a0f4067c5d5be575bb078cba5670744a84b06ddf7a6cf48ed5dd5f138a9b |
| SHA512 | 10997ef6181227f51aaa2fbe25aab84ddeebf0ac113795149834c1b8297c2244fec9b60ef9ed5b4e993100652d1731070592c68e1366796bc810786571cb6e7a |
memory/3384-24-0x0000000000400000-0x000000000042D000-memory.dmp