Analysis Overview
SHA256
b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf
Threat Level: Known bad
The file b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Drops startup file
Executes dropped EXE
Enumerates connected drives
Drops autorun.inf file
Drops file in System32 directory
Drops file in Program Files directory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V16
Analysis: static1
Detonation Overview
Reported
2025-07-03 05:56
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-07-03 05:56
Reported
2025-07-03 05:58
Platform
win10v2004-20250610-en
Max time kernel
145s
Max time network
139s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe" | C:\Windows\SysWOW64\HelpMe.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk | C:\Windows\SysWOW64\HelpMe.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\HelpMe.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\B: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\G: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\H: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\J: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\L: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\M: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\S: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\U: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\E: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\Q: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\R: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\V: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\W: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\X: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\Y: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\Z: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\N: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\O: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\P: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\A: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\I: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\T: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened (read-only) | \??\K: | C:\Windows\SysWOW64\HelpMe.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File opened for modification | F:\AUTORUN.INF | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened for modification | C:\AUTORUN.INF | C:\Windows\SysWOW64\HelpMe.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\HelpMe.exe | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | N/A |
| File created | C:\Windows\SysWOW64\HelpMe.exe | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\HelpMe.exe | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | N/A |
| File created | C:\Windows\SysWOW64\notepad.exe.exe | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\HelpMe.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4536 wrote to memory of 1188 | N/A | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | C:\Windows\SysWOW64\HelpMe.exe |
| PID 4536 wrote to memory of 1188 | N/A | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | C:\Windows\SysWOW64\HelpMe.exe |
| PID 4536 wrote to memory of 1188 | N/A | C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe | C:\Windows\SysWOW64\HelpMe.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe
"C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe"
C:\Windows\SysWOW64\HelpMe.exe
C:\Windows\system32\HelpMe.exe
Network
| Country | Destination | Domain | Proto |
| 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 |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.179.227:80 | c.pki.goog | tcp |
Files
memory/4536-0-0x00000000021E0000-0x00000000021E1000-memory.dmp
memory/4536-1-0x0000000000460000-0x0000000000461000-memory.dmp
C:\Windows\SysWOW64\HelpMe.exe
| MD5 | f00c97ff6b429e518b3b1eaa5c072d4c |
| SHA1 | 951dfbb4f8b4ce25ccef61bbabf450c4a11bdc36 |
| SHA256 | 3bc026023f0d9b85e3f3c1c6304e24ab83076136d5ccdcdf857f3f7d901b60d8 |
| SHA512 | 676b2b57d517f22f7f982696b8324f27583c8dc13a3028819c230827021b54f64e2cc7ac24793f12b78c1c0a8bc210bdb11a7c8b570844a1f70903e9a04c45ee |
memory/1188-6-0x0000000000400000-0x000000000047C000-memory.dmp
C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe
| MD5 | 8caee687a6a759e3739ca5a55cfee189 |
| SHA1 | f7b37f65a4f2620ed5d2f96dac03cb07b0a9523e |
| SHA256 | 5deb1dc157c379adaaf874d9badb2859923dfbbb19a3a9e4ca6aac1ab4816f38 |
| SHA512 | 7ac9803e9f372dffcd4e604a21e92b236515b44539e01be5d8511586360c4c9b4d628e65ee8c2a67445142ebdd6fa5ea0f5f4d9a59b289cc1bee70c6998e74d0 |
F:\AUTORUN.INF
| MD5 | ca13857b2fd3895a39f09d9dde3cca97 |
| SHA1 | 8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0 |
| SHA256 | cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae |
| SHA512 | 55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47 |
C:\$Recycle.Bin\S-1-5-21-2866795425-63786011-2927312124-1000\desktop.ini.exe
| MD5 | 9b99e6842f3d2e2c0c36ffcc2613d8f6 |
| SHA1 | 428f538e10c4e4652ae17b883d01fcff84366849 |
| SHA256 | b892fb8eff26ee543844425795c8b0e8ca199d4b245588a234852412828d21ce |
| SHA512 | 2271b5953f6b17a02011da5493b0eeb8de6a16c85f96d67abb3bf1b2c0fd210ce33b85d0859db1a02d5e724b87e5b0b16db8134e1b288b55545c636a323fce36 |
memory/1188-56-0x0000000000400000-0x000000000047C000-memory.dmp