Analysis
- max time kernel
90s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
21/05/2022, 11:55
General
- Target Price Request,pdf.exe
- Size 1.2MB
- Sample220521-n3khlseee4
- SHA256 921535a6ad60e212e6628f7ae40b356db57c7be4a70c4616d032226fca211523
Malware Config
Extracted
-
C:\Users\Admin\AppData\Local\0F48153F20\Log.txt
-
masslogger
- <|| v2.3.0.0 ||> User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 12:47:04 PM MassLogger Started: 5/21/2022 12:47:00 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Price Request,pdf.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 42 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Price Request,pdf.exe"C:\Users\Admin\AppData\Local\Temp\Price Request,pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Price Request,pdf.exe"C:\Users\Admin\AppData\Local\Temp\Price Request,pdf.exe"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2936-131-0x0000000000C40000-0x0000000000D04000-memory.dmp
memory/2936-133-0x0000000000C40000-0x0000000000D04000-memory.dmp
memory/2936-134-0x0000000004E60000-0x0000000005404000-memory.dmp
memory/2936-135-0x0000000004D70000-0x0000000004E0C000-memory.dmp
memory/2936-136-0x0000000005490000-0x00000000054F6000-memory.dmp
memory/2936-137-0x0000000005850000-0x00000000058E2000-memory.dmp
memory/2936-138-0x0000000006C60000-0x0000000006C6A000-memory.dmp
memory/2936-139-0x0000000006990000-0x00000000069E0000-memory.dmp
memory/3044-132-0x0000000000400000-0x000000000053F000-memory.dmp