Analysis
- max time kernel
148s - max time network
148s - platform
windows10_x64 - resource
win10 - submitted
13/10/2020, 12:27
General
- Target yp3E2QR8CeZp9Au.exe
- Size 1.1MB
- Sample201013-37kr773n7n
- SHA256 96c020d574c159341ab1d2dd8029637423bf01286bf930a34a5c9af605d01532
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
ayo2018
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 2 IoCs
- 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 8 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\yp3E2QR8CeZp9Au.exe"C:\Users\Admin\AppData\Local\Temp\yp3E2QR8CeZp9Au.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- 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\BGcaVgVh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC171.tmp"2⤵
- Creates scheduled task(s)
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-
C:\Users\Admin\AppData\Local\Temp\yp3E2QR8CeZp9Au.exe"{path}"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/2204-24-0x0000000007EE0000-0x0000000007F6D000-memory.dmp
memory/2204-23-0x0000000007480000-0x00000000074B9000-memory.dmp
memory/2204-20-0x00000000070A0000-0x00000000070A1000-memory.dmp
memory/2204-19-0x0000000006890000-0x0000000006891000-memory.dmp
memory/2204-14-0x00000000735B0000-0x0000000073C9E000-memory.dmp
memory/2204-12-0x0000000000400000-0x0000000000486000-memory.dmp
memory/3404-5-0x00000000059E0000-0x00000000059E1000-memory.dmp
memory/3404-9-0x000000000A9F0000-0x000000000AABE000-memory.dmp
memory/3404-8-0x0000000007FC0000-0x0000000008091000-memory.dmp
memory/3404-7-0x0000000005D80000-0x0000000005D84000-memory.dmp
memory/3404-6-0x0000000007DA0000-0x0000000007DA1000-memory.dmp
memory/3404-0-0x00000000735B0000-0x0000000073C9E000-memory.dmp
memory/3404-4-0x0000000005930000-0x0000000005931000-memory.dmp
memory/3404-3-0x0000000005F10000-0x0000000005F11000-memory.dmp
memory/3404-1-0x0000000000EB0000-0x0000000000EB1000-memory.dmp