Analysis
- max time kernel
66s - max time network
109s - platform
windows7_x64 - resource
win7v200722 - submitted
29/07/2020, 06:22
General
- Target NEW837 PO3.exe
- Size 970KB
- Sample200729-tc2vxvy4te
- SHA256 824f3b6b2f801742c68deb29ccf2347f591c5d04262dc1ad9efcb756be99ea25
Score
10/10
Malware Config
Extracted
Path
-
C:\Users\Admin\AppData\Local\42EF15E83D\Log.txt
-
masslogger
Ransom Note
- <|| v2.2.0.0 ||> User Name: Admin IP: 154.61.71.13 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: 7/29/2020 8:23:11 AM MassLogger Started: 7/29/2020 8:23:02 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\NEW837 PO3.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> 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
- Suspicious use of SetWindowsHookEx 1 IoCs
- MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- 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.
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of SetThreadContext 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NEW837 PO3.exe"C:\Users\Admin\AppData\Local\Temp\NEW837 PO3.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
-
C:\Users\Admin\AppData\Local\Temp\NEW837 PO3.exe"{path}"2⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1744-2-0x0000000000400000-0x00000000004C4000-memory.dmp
memory/1744-4-0x0000000000400000-0x00000000004C4000-memory.dmp
memory/1744-5-0x0000000000400000-0x00000000004C4000-memory.dmp