Analysis Overview
SHA256
8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af
Threat Level: Known bad
The file 8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af was found to be: Known bad.
Malicious Activity Summary
Risepro family
Privateloader family
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops startup file
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Drops file in System32 directory
Enumerates physical storage devices
Program crash
Unsigned PE
Checks processor information in registry
outlook_win_path
outlook_office_path
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-13 21:39
Signatures
Privateloader family
Risepro family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-13 21:39
Reported
2023-12-13 21:42
Platform
win10v2004-20231127-en
Max time kernel
147s
Max time network
152s
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\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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\SysWOW64\GroupPolicy\gpt.ini | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
| File created | C:\Windows\System32\GroupPolicy\Machine\Registry.pol | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
| File opened for modification | C:\Windows\System32\GroupPolicy\GPT.INI | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
| File opened for modification | C:\Windows\System32\GroupPolicy | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe
"C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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 -p -s fhsvc
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\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3536 -ip 3536
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 1668
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 146.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 8.238.23.119:80 | tcp | |
| N/A | 224.0.0.251:5353 | udp | |
| US | 193.233.132.51:50500 | tcp | |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 51.132.233.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ipinfo.io | udp |
| US | 34.117.59.81:443 | ipinfo.io | tcp |
| US | 8.8.8.8:53 | 81.59.117.34.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.2.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
Files
C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
| MD5 | cbb0b9dd19e5913079cd699250b66b00 |
| SHA1 | e98599cad9443bf9f1b93ff976799568d440ada3 |
| SHA256 | 8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af |
| SHA512 | 8d75a56ee2397c1485d066057fd975c48a6807b91b85db411f5dc013e4f106df63e93cdf033da98e59bd089750b0aab926dbd41cd0bbdcbcdf9d6411620b450e |
C:\Users\Admin\AppData\Local\Temp\posterBox2SEsERBj9Cw3X\ZunTSaNJLBVfWeb Data
| MD5 | f70aa3fa04f0536280f872ad17973c3d |
| SHA1 | 50a7b889329a92de1b272d0ecf5fce87395d3123 |
| SHA256 | 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8 |
| SHA512 | 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84 |
C:\Users\Admin\AppData\Local\Temp\posterBox2SEsERBj9Cw3X\QdX9ITDLyCRBWeb Data
| MD5 | 44de9f4a837691e623c12425421c22d1 |
| SHA1 | 5229b2b16468353e9ae72ae2d97840448b055e55 |
| SHA256 | 683050f55ee81e6cdd868cad8df884f327f903bca54f06f19e24d196d514fcae |
| SHA512 | 5f15e672310ef2f67e7517e4b23d3d1500fe18c4e53785ed8191d0b74139ccb2142e5b7495ec966e207fd46ead84bbd929d2d169b71d9477fbac4b383b0b55c5 |
C:\Users\Admin\AppData\Local\Temp\grandUIA2SEsERBj9Cw3X\information.txt
| MD5 | 0f89daaa51d50acf103338caba631eee |
| SHA1 | ebca1f3038c64d32138515678103c93abc0595af |
| SHA256 | 97faed85525489b4ab4951a70b828e83a7bb6b346efa83af513434ba53c3dbca |
| SHA512 | 3ec19f78ecca0948d8769c06cf76bd00a3cfbc76739723bf590e6026b2063661753cebe7ca90e9437ca66acf86c31943391404706d498893a701b6ae0e0c4d1c |