Analysis Overview
SHA256
b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899
Threat Level: Known bad
The file b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899 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
Accesses Microsoft Outlook profiles
Checks installed software on the system
Looks up external IP address via web service
Adds Run key to start application
Drops file in System32 directory
Enumerates physical storage devices
Unsigned PE
Program crash
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
outlook_office_path
Suspicious use of WriteProcessMemory
Checks processor information in registry
outlook_win_path
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-13 23:38
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 23:38
Reported
2023-12-13 23:40
Platform
win10-20231129-en
Max time kernel
120s
Max time network
111s
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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\GroupPolicy\gpt.ini | C:\Users\Admin\AppData\Local\Temp\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.exe | N/A |
| File created | C:\Windows\System32\GroupPolicy\Machine\Registry.pol | C:\Users\Admin\AppData\Local\Temp\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.exe | N/A |
| File opened for modification | C:\Windows\System32\GroupPolicy\GPT.INI | C:\Users\Admin\AppData\Local\Temp\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.exe
"C:\Users\Admin\AppData\Local\Temp\b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899.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 4596 -s 1640
Network
| Country | Destination | Domain | Proto |
| US | 193.233.132.51:50500 | tcp | |
| 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 | 114.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 129.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.201.50.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.181.190.20.in-addr.arpa | udp |
Files
C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
| MD5 | 720b055fb9de507cf81c7f98a1e54ebd |
| SHA1 | aa689e3bfd6f6c5cc3f98c6da53e8ec181d39e10 |
| SHA256 | b5d3f136f09a235c58e4571cd85f8a455ae710620f2c8816590e31c9de723899 |
| SHA512 | 29febba7a189b5a0ba986178b378621828a68721b57fa34dc1ef32b9c1ca5f8dbc09c25f86090e03794a9aea24fc76f31a4460def21bed3a09bab1ca5015b5b7 |
C:\Users\Admin\AppData\Local\Temp\posterBoxRdOjJmocBEjtm\QdX9ITDLyCRBWeb Data
| MD5 | 8e8e7137325b5aa4e1206f338a7ccde7 |
| SHA1 | 23a2d46d2812f664d8fff942d493e85afe5f6a27 |
| SHA256 | bbbd94e3e65b0cf446d3f651f1a557e479c2adc8c0c955a18addd89fcd7ffe25 |
| SHA512 | 1512bc6ad27b5b794d44b2599ace04a325b32726a1c96e2f8a6f75d55c494e65a4cdd1ea241027d693cd54dc049ad4a23b2147bb1a49450b7949cc71dba06233 |
C:\Users\Admin\AppData\Local\Temp\grandUIARdOjJmocBEjtm\information.txt
| MD5 | b0354819209b19e042ff88d081abdea7 |
| SHA1 | 11ce46bff10a64e393ccdaf2b69c3984d3886972 |
| SHA256 | 94d36f99f0436b36f1932edd4270ef8274123a272fd9b5b37e61e36cdc7e8572 |
| SHA512 | bd26d02326480a2f2a9e8749367f5c49225c427147e62e8a4e1a17746c09edf4129b596023a72f32b5050a7596dd86560bb1b28141572cf43aaf5936b5698014 |