Analysis Overview
SHA256
d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a
Threat Level: Known bad
The file d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a was found to be: Known bad.
Malicious Activity Summary
Risepro family
Privateloader family
Drops startup file
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Adds Run key to start application
Accesses Microsoft Outlook profiles
Checks installed software on the system
Looks up external IP address via web service
Drops file in System32 directory
Unsigned PE
Program crash
Enumerates physical storage devices
outlook_office_path
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Checks processor information in registry
outlook_win_path
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-13 23:35
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 23:35
Reported
2023-12-13 23:37
Platform
win10-20231129-en
Max time kernel
120s
Max time network
110s
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\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.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-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.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 |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\System32\GroupPolicy\Machine\Registry.pol | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
| File opened for modification | C:\Windows\System32\GroupPolicy\GPT.INI | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
| File opened for modification | C:\Windows\System32\GroupPolicy | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\GroupPolicy\gpt.ini | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.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\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.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\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.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\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.exe
"C:\Users\Admin\AppData\Local\Temp\d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a.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\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
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 -u -p 400 -s 1664
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 | 114.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 96.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.179.89.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.177.190.20.in-addr.arpa | udp |
Files
C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
| MD5 | b7f343ab07d73b9d3206829f49bc5942 |
| SHA1 | 0ccd7ef84c0f87fd80d76b8a969da3ed152b9bd6 |
| SHA256 | d661b08dfac49bac58f07815ff8d3d680007f05cb3db878439c16ac9913abd9a |
| SHA512 | 810185825af3fadf3e9a00db88242436d54753371fcbf13936e2b1896748911eedd0b63a23a3ebaf56283625d9080708fefa81fec7a6ffec641546bf20ee95e9 |
C:\Users\Admin\AppData\Local\Temp\posterBoxA0u85XelkMqjc\QdX9ITDLyCRBWeb Data
| MD5 | d540e45d4e0edb6aab5ed14cc52f1fa5 |
| SHA1 | 0c9279b204416dfa86ee22993bd3325b5bc762b1 |
| SHA256 | ddd7cbb13ec9dca8859d1a0f54d3f326c0097a8d2809636d96d2e4d9cfa86153 |
| SHA512 | 3dc3b50b4948f522f4746a0ef63cdc40995dad3a3ac901b277a37296a33eee2977121f7aa529d9ef7f0cb878c6e15fac6c5570f1e5f73e73b5379633bd0caf9f |
C:\Users\Admin\AppData\Local\Temp\grandUIAA0u85XelkMqjc\information.txt
| MD5 | c8469a6c19edb39b8746a1c6eccc3a3e |
| SHA1 | b7d52d3afef4affd2f2f7f6e11bc58ce476b95cb |
| SHA256 | 1ca76ac99fb89401f7a4297da67bb2b311c7b03b6ca4eb4463136e6372077dfc |
| SHA512 | 28f7070ee6e0408f46b53f9649c060c6e45359f4bfba6ab2cd356311e68438fe9d839eeca269c139915efa0b26cdf45ab9f222f1bec38edd5d9c363af8e23d60 |