Analysis Overview
SHA256
0d46bd6e83d661567efd6d79ae760a041f6a1ea72b4b043da428c7fbb93ad27f
Threat Level: Known bad
The file ep_setup.exe was found to be: Known bad.
Malicious Activity Summary
Detect Lumma Stealer payload V4
Lumma family
Stops running service(s)
Registers COM server for autorun
Checks computer location settings
Loads dropped DLL
Checks installed software on the system
Launches sc.exe
Drops file in Windows directory
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
Modifies registry class
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-21 21:44
Signatures
Detect Lumma Stealer payload V4
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Lumma family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-21 21:44
Reported
2024-02-21 21:44
Platform
win7-20240221-en
Max time kernel
0s
Max time network
3s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\ep_setup.exe
"C:\Users\Admin\AppData\Local\Temp\ep_setup.exe"
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-21 21:44
Reported
2024-02-21 21:45
Platform
win10v2004-20240221-en
Max time kernel
10s
Max time network
16s
Command Line
Signatures
Stops running service(s)
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\explorer.exe | N/A |
Registers COM server for autorun
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\InProcServer32\ = "C:\\Program Files\\ExplorerPatcher\\ep_weather_host.dll" | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\InProcServer32\ThreadingModel = "Apartment" | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\InProcServer32 | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\InProcServer32\ = "C:\\Program Files\\ExplorerPatcher\\ep_weather_host_stub.dll" | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\InProcServer32\ThreadingModel = "Both" | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\InProcServer32 | C:\Windows\system32\regsvr32.exe | N/A |
Checks installed software on the system
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\ExplorerPatcher\ep_setup.exe | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Program Files\ExplorerPatcher\ExplorerPatcher.IA-32.dll | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Program Files\ExplorerPatcher\ExplorerPatcher.amd64.dll | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Program Files\ExplorerPatcher\ep_gui.dll | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Program Files\ExplorerPatcher\ep_dwm.exe | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Program Files\ExplorerPatcher\ep_weather_host.dll | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Program Files\ExplorerPatcher\ep_weather_host_stub.dll | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Program Files\ExplorerPatcher\ep_setup.exe | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Program Files\ExplorerPatcher\WebView2Loader.dll | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\dxgi.dll | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| File created | C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\dxgi.dll | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\sc.exe | N/A |
| N/A | N/A | C:\Windows\system32\sc.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\InProcServer32\ = "C:\\Program Files\\ExplorerPatcher\\ep_weather_host.dll" | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CDBF3734-F847-4F1B-B953-A605434DC1E7} | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\ProxyStubClsid32\ = "{CDBF3734-F847-4F1B-B953-A605434DC1E7}" | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\InProcServer32\ThreadingModel = "Apartment" | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A6EA9C2D-4982-4827-9204-0AC532959F6D} | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\ = "ExplorerPatcher Weather Host" | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\DllSurrogate | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CDBF3734-F847-4F1B-B953-A605434DC1E7} | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\InProcServer32\ = "C:\\Program Files\\ExplorerPatcher\\ep_weather_host_stub.dll" | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\NumMethods | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D} | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\ = "ExplorerPatcher Weather Host" | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\AppID = "{A6EA9C2D-4982-4827-9204-0AC532959F6D}" | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A6EA9C2D-4982-4827-9204-0AC532959F6D}\InProcServer32 | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\CLSID | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\ = "IEPWeather" | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\NumMethods\ = "28" | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\InProcServer32 | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\InProcServer32\ThreadingModel = "Both" | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\ = "PSFactoryBuffer" | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000_Classes\Interface | C:\Windows\system32\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CDBF3734-F847-4F1B-B953-A605434DC1E7}\ProxyStubClsid32 | C:\Windows\system32\regsvr32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ep_setup.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ep_setup.exe
"C:\Users\Admin\AppData\Local\Temp\ep_setup.exe"
C:\Windows\system32\sc.exe
"C:\Windows\system32\sc.exe" stop ep_dwm_D17F1E1A-5919-4427-8F89-A1A8503CA3EB
C:\Windows\system32\sc.exe
"C:\Windows\system32\sc.exe" start ep_dwm_D17F1E1A-5919-4427-8F89-A1A8503CA3EB
C:\Windows\system32\regsvr32.exe
"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files\ExplorerPatcher\ep_weather_host.dll"
C:\Windows\system32\regsvr32.exe
"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files\ExplorerPatcher\ep_weather_host_stub.dll"
C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
C:\Windows\explorer.exe
explorer.exe
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
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 | 25.63.96.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.109.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
Files
C:\Program Files\ExplorerPatcher\ep_weather_host.dll
| MD5 | bf39429762a6ac4606516dd454ee3d32 |
| SHA1 | 8388f4ddd5c91a3dc3c64ec7572ff0c9a16cb304 |
| SHA256 | a3429b8060930cdfed715f5baf4cb9bf1d48a9fcaa25bf84c02587cbf502da88 |
| SHA512 | 054270517c3b6800f9efcbcf40bd49a5f845e5687f8b9ada07ac23dec993c9dcb4085fc941df56f8a5aae38ddd54d2520ecfd5fa520e33dd36c44b9fc58e0954 |
C:\Program Files\ExplorerPatcher\WebView2Loader.dll
| MD5 | c44baed957b05b9327bd371dbf0dbe99 |
| SHA1 | 80b48c656b8555ebc588de3de0ec6c7e75ae4bf1 |
| SHA256 | ad8bb426a8e438493db4d703242f373d9cb36d8c13e88b6647cd083716e09bef |
| SHA512 | ad1b76594dca7cde6bbcde55bc3abe811f9e903e2cf6613d49201e14e789cfc763cb528d499dd2db84db097a210d63c7d88cc909ca1c836d831e3519c2ce7b35 |
C:\Program Files\ExplorerPatcher\ep_weather_host_stub.dll
| MD5 | 27db891c07f48b2aa217916e313b4290 |
| SHA1 | 4e78b077ee65244c04261de5cee48af9db527a45 |
| SHA256 | c37861c2d351366d55b39f95336625f5d4a23b83839b8c419531322aded6d679 |
| SHA512 | 4b3792ffc63a2dc44ecace6716b5cac09fff326abb5932e2ae42bb77fefff9acddbdbf7443caaa9fba12b41dd41ab7887dbdaa15066ace23b91ab24c34bd4727 |
C:\Windows\dxgi.dll
| MD5 | 7638f76208571b7c3a2a42dd9b2fcd4c |
| SHA1 | 71dda667c93210c880115044eaf9e8b22c64466d |
| SHA256 | ecd3d3961c5dc287413bccc5554250a0baa032326617db5140d9c23f4a51a024 |
| SHA512 | 957304e779851d27b5b0b1f936ed26a7bf4e65db56ea4fb845c4ddb1f695c220524b133b374825cff93c0b55e0138010d05153ea373fa9fcba848c11b5761349 |
memory/2044-20-0x00007FF925A10000-0x00007FF92614F000-memory.dmp
memory/2044-21-0x00007FF925A10000-0x00007FF92614F000-memory.dmp
memory/2044-22-0x00007FF910280000-0x00007FF9104A0000-memory.dmp
memory/2044-23-0x00007FF910280000-0x00007FF9104A0000-memory.dmp
memory/2044-24-0x00007FF910280000-0x00007FF9104A0000-memory.dmp
memory/2044-25-0x00007FF910280000-0x00007FF9104A0000-memory.dmp
memory/2044-26-0x00007FF910280000-0x00007FF9104A0000-memory.dmp
memory/2044-27-0x00007FF910280000-0x00007FF9104A0000-memory.dmp
memory/2044-28-0x00007FF925100000-0x00007FF9252A1000-memory.dmp
memory/2044-29-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-30-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-31-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-32-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-33-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-34-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-35-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-36-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-37-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-38-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-39-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-40-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-41-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-42-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-43-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-44-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-45-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-46-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-47-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-48-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-49-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-50-0x00007FF90F980000-0x00007FF90FFA6000-memory.dmp
memory/2044-51-0x00007FF90F200000-0x00007FF90F7F3000-memory.dmp
memory/2044-53-0x00007FF919210000-0x00007FF919262000-memory.dmp
memory/2044-52-0x00007FF919210000-0x00007FF919262000-memory.dmp
memory/2044-54-0x00007FF919210000-0x00007FF919262000-memory.dmp
memory/2044-55-0x00007FF919210000-0x00007FF919262000-memory.dmp
memory/2044-57-0x00007FF90EDB0000-0x00007FF90EFC9000-memory.dmp
memory/2044-58-0x00007FF90EDB0000-0x00007FF90EFC9000-memory.dmp
memory/2044-56-0x00007FF9186F0000-0x00007FF918736000-memory.dmp
memory/2044-59-0x00007FF9186A0000-0x00007FF9186F0000-memory.dmp
memory/2044-62-0x00007FF91CF80000-0x00007FF91CFBB000-memory.dmp
memory/2044-61-0x00007FF9186A0000-0x00007FF9186F0000-memory.dmp
memory/2044-66-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-65-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/2044-70-0x0000000002E80000-0x0000000002F95000-memory.dmp
memory/4416-72-0x00007FF925A10000-0x00007FF92614F000-memory.dmp
memory/4416-74-0x00007FF91A660000-0x00007FF91A880000-memory.dmp
memory/4416-76-0x00007FF91A660000-0x00007FF91A880000-memory.dmp
memory/4416-78-0x00007FF91A660000-0x00007FF91A880000-memory.dmp
memory/4416-77-0x00007FF91A660000-0x00007FF91A880000-memory.dmp
memory/4416-75-0x00007FF91A660000-0x00007FF91A880000-memory.dmp
memory/4416-79-0x00007FF91A660000-0x00007FF91A880000-memory.dmp
memory/4416-73-0x00007FF925A10000-0x00007FF92614F000-memory.dmp
memory/4416-80-0x00007FF925100000-0x00007FF9252A1000-memory.dmp
memory/4416-81-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-82-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-83-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-85-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-84-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-86-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-87-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-88-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-89-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp
memory/4416-90-0x00007FF6EF550000-0x00007FF6EF9ED000-memory.dmp