Analysis Overview
SHA256
4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8
Threat Level: Known bad
The file 4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8 was found to be: Known bad.
Malicious Activity Summary
Privateloader family
Risepro family
Drops startup file
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Adds Run key to start application
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
Checks installed software on the system
Drops file in System32 directory
Enumerates physical storage devices
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
outlook_win_path
Suspicious behavior: EnumeratesProcesses
outlook_office_path
Creates scheduled task(s)
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-13 23:32
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 23:32
Reported
2023-12-13 23:34
Platform
win10-20231129-en
Max time kernel
120s
Max time network
150s
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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\GroupPolicy\gpt.ini | C:\Users\Admin\AppData\Local\Temp\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.exe | N/A |
| File created | C:\Windows\System32\GroupPolicy\Machine\Registry.pol | C:\Users\Admin\AppData\Local\Temp\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.exe | N/A |
| File opened for modification | C:\Windows\System32\GroupPolicy\GPT.INI | C:\Users\Admin\AppData\Local\Temp\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.exe
"C:\Users\Admin\AppData\Local\Temp\4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8.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 1564
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 | 129.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 114.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 40.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.177.190.20.in-addr.arpa | udp |
Files
C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
| MD5 | 02dc5249be8e536161a443a119aa781b |
| SHA1 | 8f808253f7a6451b76fb9e8f3515572868992002 |
| SHA256 | 4a4d0d6d93ceaa7cf5854267a616ae0297b9a11ad45541f5f954dbabecb02dd8 |
| SHA512 | b3fd530ae5c7f8f9fc09d9c39dae5304a83ea9ee021d5e8a5bf1ffe1e1e33dda9d5eddd119bbfc32b3c9bcb1ee81206876cd1bc2a4eec780196239405c5c482a |
C:\Users\Admin\AppData\Local\Temp\posterBoxn_IjNmgiEYeBl\QdX9ITDLyCRBWeb Data
| MD5 | d540e45d4e0edb6aab5ed14cc52f1fa5 |
| SHA1 | 0c9279b204416dfa86ee22993bd3325b5bc762b1 |
| SHA256 | ddd7cbb13ec9dca8859d1a0f54d3f326c0097a8d2809636d96d2e4d9cfa86153 |
| SHA512 | 3dc3b50b4948f522f4746a0ef63cdc40995dad3a3ac901b277a37296a33eee2977121f7aa529d9ef7f0cb878c6e15fac6c5570f1e5f73e73b5379633bd0caf9f |
C:\Users\Admin\AppData\Local\Temp\grandUIAn_IjNmgiEYeBl\information.txt
| MD5 | e1ce00097c882afa32aa61fef7a4e8f1 |
| SHA1 | abbe19e445653472d7266248c55d90c164da3461 |
| SHA256 | ade308efb098b889ced8070ecf4f4423ce1771f342f74f295ef156f4bbcc627e |
| SHA512 | badb7a724b94a0e1a408a94e930dbd5a172cfa0047e292f26aa5941e37c0d558a250c19f64e3c6cf46b0337ac7ce28ee031a649c13976330f92f8d8bb6b2e024 |