Analysis Overview
SHA256
4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e
Threat Level: Known bad
The file 4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e was found to be: Known bad.
Malicious Activity Summary
Privateloader family
Risepro family
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops startup file
Adds Run key to start application
Looks up external IP address via web service
Checks installed software on the system
Accesses Microsoft Outlook profiles
Drops file in System32 directory
Enumerates physical storage devices
Program crash
Unsigned PE
Suspicious behavior: EnumeratesProcesses
outlook_win_path
Suspicious use of WriteProcessMemory
Checks processor information in registry
Creates scheduled task(s)
outlook_office_path
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-14 00:11
Signatures
Privateloader family
Risepro family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-14 00:11
Reported
2023-12-14 00:14
Platform
win10-20231129-en
Max time kernel
131s
Max time network
141s
Command Line
Signatures
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
Checks installed software on the system
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ipinfo.io | N/A | N/A |
| N/A | ipinfo.io | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\GroupPolicy | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\GroupPolicy\gpt.ini | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
| File created | C:\Windows\System32\GroupPolicy\Machine\Registry.pol | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
| File opened for modification | C:\Windows\System32\GroupPolicy\GPT.INI | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe
"C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe"
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1608
Network
| Country | Destination | Domain | Proto |
| US | 193.233.132.51:50500 | tcp | |
| US | 8.8.8.8:53 | ipinfo.io | udp |
| US | 34.117.59.81:443 | ipinfo.io | tcp |
| US | 8.8.8.8:53 | 51.132.233.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.59.117.34.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 114.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 129.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.73.42.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.53.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
Files
C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
| MD5 | e94dce896b9504ef6a54fb33528bb923 |
| SHA1 | f99b8a14c147c1dd5f5ab763132b3f8926d2cb64 |
| SHA256 | 4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e |
| SHA512 | 8926a9539b0d4b4b38c5c19e0eb2595cf15c5a954859a601dce936f50c768c736fb50d90fe9fbc741bd3b0601cce72c2a72aec160d6338b345b5e280e4b1e282 |
C:\Users\Admin\AppData\Local\Temp\posterBoxCUk7Y3sL8N9UN\QdX9ITDLyCRBWeb Data
| MD5 | 8e8e7137325b5aa4e1206f338a7ccde7 |
| SHA1 | 23a2d46d2812f664d8fff942d493e85afe5f6a27 |
| SHA256 | bbbd94e3e65b0cf446d3f651f1a557e479c2adc8c0c955a18addd89fcd7ffe25 |
| SHA512 | 1512bc6ad27b5b794d44b2599ace04a325b32726a1c96e2f8a6f75d55c494e65a4cdd1ea241027d693cd54dc049ad4a23b2147bb1a49450b7949cc71dba06233 |
C:\Users\Admin\AppData\Local\Temp\grandUIACUk7Y3sL8N9UN\information.txt
| MD5 | 4da4599220a2a301a9a8bdbabe0d7887 |
| SHA1 | a5334cef53909f703cc6ea9d0f8a6956f395d82e |
| SHA256 | be07cc1d199c2d04cf74cf798b720126a61cec8c4f54de27d8b547deb5e3b910 |
| SHA512 | a52154ea1fc460d3a816ac288bc661015e750770068a9d7cc3a049c93802987148bf103ce1f7da940581161173e47f62467806a323cbb4ae1786d4ced86378f3 |