Analysis
- max time kernel
139s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20231130-en - resource tags
- submitted
08/12/2023, 19:52
General
- Target file.exe
- Size 959KB
- Sample231208-yldzlscccl
- SHA256 01610d02adf2f0064b0e6f00fcfcc1c3dca465927c98cbd5dfa7fccb4d86b7f7
Malware Config
Extracted
-
risepro
-
193.233.132.51
Signatures
- PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
- RisePro
RisePro stealer is an infostealer distributed by PrivateLoader.
- Drops startup file 1 IoCs
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Drops startup file
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Drops file in System32 directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST2⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST2⤵
- Creates scheduled task(s)
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 17042⤵
- Program crash
-
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4572 -ip 45721⤵
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
OfficeTrackerNMP131.exe
information.txt
memory/3988-114-0x000001FA731F0000-0x000001FA731F1000-memory.dmp
memory/3988-82-0x000001FA6AD80000-0x000001FA6AD90000-memory.dmp
memory/3988-98-0x000001FA6AE80000-0x000001FA6AE90000-memory.dmp
memory/3988-116-0x000001FA73220000-0x000001FA73221000-memory.dmp
memory/3988-117-0x000001FA73220000-0x000001FA73221000-memory.dmp
memory/3988-118-0x000001FA73330000-0x000001FA73331000-memory.dmp
memory/4572-3-0x0000000000400000-0x0000000000912000-memory.dmp
memory/4572-2-0x00000000026C0000-0x0000000002855000-memory.dmp
memory/4572-80-0x0000000000400000-0x0000000000912000-memory.dmp
memory/4572-81-0x00000000026C0000-0x0000000002855000-memory.dmp
memory/4572-1-0x0000000002520000-0x00000000025F3000-memory.dmp