Analysis
- max time kernel
143s - max time network
147s - platform
windows10_x64 - resource
win10 - submitted
25/09/2020, 10:00
General
- Target 36972844c3797491910d95b06c9be519.exe
- Size 1.8MB
- Sample200925-23edm5npmj
- SHA256 7bed2f09d2796f9c8f437f20e993e119d871c364895bec22192d754ee83dc30f
Malware Config
Extracted
-
C:\Users\Admin\AppData\Local\480F96756F\Log.txt
-
masslogger
- <|| v2.1.0.0 ||> 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: Persocon Processor 2.5+ GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 9/25/2020 9:57:44 AM MassLogger Started: 9/25/2020 9:57:40 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\36972844c3797491910d95b06c9be519.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.
- 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.
- 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
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\36972844c3797491910d95b06c9be519.exe"C:\Users\Admin\AppData\Local\Temp\36972844c3797491910d95b06c9be519.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EqBHrEJqpCaiE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE380.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\36972844c3797491910d95b06c9be519.exe"C:\Users\Admin\AppData\Local\Temp\36972844c3797491910d95b06c9be519.exe"2⤵
- Checks computer location settings
- 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/2208-27-0x0000000006FC0000-0x0000000006FCF000-memory.dmp
memory/2208-26-0x0000000008380000-0x0000000008381000-memory.dmp
memory/2208-23-0x00000000053F0000-0x00000000053F1000-memory.dmp
memory/2208-22-0x0000000005330000-0x000000000536E000-memory.dmp
memory/2208-17-0x0000000073580000-0x0000000073C6E000-memory.dmp
memory/2208-14-0x0000000000400000-0x000000000049A000-memory.dmp
memory/3828-6-0x00000000057E0000-0x00000000057E1000-memory.dmp
memory/3828-11-0x00000000079D0000-0x0000000007A68000-memory.dmp
memory/3828-10-0x0000000005D70000-0x0000000005D72000-memory.dmp
memory/3828-9-0x0000000007920000-0x00000000079D0000-memory.dmp
memory/3828-8-0x0000000005B00000-0x0000000005B10000-memory.dmp
memory/3828-7-0x0000000005B20000-0x0000000005B21000-memory.dmp
memory/3828-0-0x0000000073580000-0x0000000073C6E000-memory.dmp
memory/3828-5-0x0000000005910000-0x0000000005911000-memory.dmp
memory/3828-4-0x0000000005E10000-0x0000000005E11000-memory.dmp
memory/3828-3-0x0000000005870000-0x0000000005871000-memory.dmp
memory/3828-1-0x0000000000DF0000-0x0000000000DF1000-memory.dmp