Analysis
- max time kernel
142s - max time network
144s - platform
windows10_x64 - resource
win10v200722 - submitted
17/08/2020, 19:07
General
- Target TR#201983.exe
- Size 1.0MB
- Sample200817-s7p8fegd3j
- SHA256 a23aaa00f7b68ac090aaec5ffbd32d5a9a557333302e72fba232f2f54b38cbbc
Malware Config
Extracted
-
C:\Users\Admin\AppData\Local\94A4C56A47\Log.txt
-
masslogger
- <|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.13 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: 8/17/2020 9:08:23 PM MassLogger Started: 8/17/2020 9:08:16 PM Interval: 1 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\TR#201983.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> 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.
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\TR#201983.exe"C:\Users\Admin\AppData\Local\Temp\TR#201983.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OoELburOfNsvO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9D20.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\TR#201983.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
Loading Replay Monitor...
Downloads
memory/408-9-0x000000000BF50000-0x000000000C003000-memory.dmp
memory/408-1-0x0000000000C90000-0x0000000000C91000-memory.dmp
memory/408-5-0x0000000007D40000-0x0000000007D41000-memory.dmp
memory/408-6-0x0000000007EC0000-0x0000000007EC1000-memory.dmp
memory/408-7-0x0000000007D50000-0x0000000007D54000-memory.dmp
memory/408-8-0x0000000008910000-0x00000000089C0000-memory.dmp
memory/408-0-0x0000000073670000-0x0000000073D5E000-memory.dmp
memory/408-4-0x0000000007BE0000-0x0000000007BE1000-memory.dmp
memory/408-3-0x0000000008040000-0x0000000008041000-memory.dmp
memory/3960-12-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/3960-15-0x0000000073670000-0x0000000073D5E000-memory.dmp
memory/3960-20-0x00000000055E0000-0x0000000005651000-memory.dmp
memory/3960-21-0x0000000005710000-0x0000000005711000-memory.dmp
memory/3960-24-0x0000000007D80000-0x0000000007D81000-memory.dmp