Analysis
- max time kernel
122s - max time network
124s - platform
windows10_x64 - resource
win10 - submitted
10/10/2020, 07:13
General
- Target NmrW2PxJyGe6Cnm.exe
- Size 1.1MB
- Sample201010-mpakfldxb6
- SHA256 21ada34a203f6a238393d69d9c0aebc680f65e9eb0a9bc472f558709e85c88ee
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\NmrW2PxJyGe6Cnm.exe"C:\Users\Admin\AppData\Local\Temp\NmrW2PxJyGe6Cnm.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\jDRGtFWzPQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCB16.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\NmrW2PxJyGe6Cnm.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
Loading Replay Monitor...
Downloads
memory/1564-20-0x0000000007370000-0x0000000007371000-memory.dmp
memory/1564-24-0x00000000080F0000-0x000000000817D000-memory.dmp
memory/1564-23-0x00000000080B0000-0x00000000080E9000-memory.dmp
memory/1564-21-0x0000000007340000-0x0000000007341000-memory.dmp
memory/1564-19-0x0000000006B70000-0x0000000006B71000-memory.dmp
memory/1564-14-0x0000000073870000-0x0000000073F5E000-memory.dmp
memory/1564-11-0x0000000000400000-0x0000000000486000-memory.dmp
memory/2460-8-0x00000000086F0000-0x00000000087A0000-memory.dmp
memory/2460-1-0x00000000009D0000-0x00000000009D1000-memory.dmp
memory/2460-5-0x0000000005470000-0x0000000005471000-memory.dmp
memory/2460-0-0x0000000073870000-0x0000000073F5E000-memory.dmp
memory/2460-4-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/2460-3-0x00000000058D0000-0x00000000058D1000-memory.dmp
memory/2460-7-0x0000000006080000-0x000000000612E000-memory.dmp
memory/2460-6-0x0000000005330000-0x0000000005334000-memory.dmp