Analysis
- max time kernel
65s - max time network
90s - platform
windows7_x64 - resource
win7 - submitted
18/08/2020, 19:26
General
- Target 8590473102_G022020000000686.exe
- Size 874KB
- Sample200818-fla6bbdyv6
- SHA256 66fb40a5ca213c6ea3377dc16e9e4e25ccd412a1b5da20399c7180d714bc10b0
Malware Config
Extracted
-
C:\Users\Admin\AppData\Local\E2C1E8F1FA\Log.txt
-
masslogger
- <|| v2.2.0.0 ||> User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 8/18/2020 7:27:14 PM MassLogger Started: 8/18/2020 7:27:10 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\8590473102_G022020000000686.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Downloader ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8590473102_G022020000000686.exe"C:\Users\Admin\AppData\Local\Temp\8590473102_G022020000000686.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\8590473102_G022020000000686.exe"{path}"2⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/768-8-0x0000000000400000-0x00000000004C4000-memory.dmp
memory/768-10-0x0000000000400000-0x00000000004C4000-memory.dmp
memory/768-11-0x0000000000400000-0x00000000004C4000-memory.dmp
memory/768-12-0x00000000739A0000-0x000000007408E000-memory.dmp
memory/768-15-0x0000000000700000-0x0000000000771000-memory.dmp
memory/768-16-0x0000000002180000-0x000000000218F000-memory.dmp
memory/1156-0-0x00000000739A0000-0x000000007408E000-memory.dmp
memory/1156-1-0x0000000000940000-0x0000000000941000-memory.dmp
memory/1156-3-0x0000000000440000-0x0000000000444000-memory.dmp
memory/1156-4-0x0000000007C00000-0x0000000007CBB000-memory.dmp
memory/1156-5-0x0000000008250000-0x0000000008310000-memory.dmp