Analysis
- max time kernel
122s - max time network
125s - platform
windows10_x64 - resource
win10 - submitted
12/10/2020, 06:18
General
- Target mkrr3KWKWbgmolZ.exe
- Size 1.3MB
- Sample201012-dpb7m7f4zx
- SHA256 90485e8e45ddd80ceb63662e5744c7c834627028fa515442f93a332a34f54ba2
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\mkrr3KWKWbgmolZ.exe"C:\Users\Admin\AppData\Local\Temp\mkrr3KWKWbgmolZ.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\JTbeTtTTOtqBc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD7F7.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\mkrr3KWKWbgmolZ.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/2184-27-0x0000000007BB0000-0x0000000007C3D000-memory.dmp
memory/2184-26-0x0000000007B70000-0x0000000007BA9000-memory.dmp
memory/2184-23-0x0000000006DA0000-0x0000000006DA1000-memory.dmp
memory/2184-22-0x00000000065A0000-0x00000000065A1000-memory.dmp
memory/2184-17-0x0000000073870000-0x0000000073F5E000-memory.dmp
memory/2184-14-0x0000000000400000-0x0000000000486000-memory.dmp
memory/2460-6-0x0000000005D70000-0x0000000005D71000-memory.dmp
memory/2460-11-0x000000000A7D0000-0x000000000A897000-memory.dmp
memory/2460-10-0x0000000007F80000-0x0000000008048000-memory.dmp
memory/2460-9-0x0000000007D50000-0x0000000007D54000-memory.dmp
memory/2460-8-0x00000000060C0000-0x00000000060C1000-memory.dmp
memory/2460-7-0x00000000057C0000-0x00000000057C1000-memory.dmp
memory/2460-0-0x0000000073870000-0x0000000073F5E000-memory.dmp
memory/2460-5-0x0000000005560000-0x0000000005561000-memory.dmp
memory/2460-4-0x0000000005410000-0x0000000005411000-memory.dmp
memory/2460-3-0x0000000005870000-0x0000000005871000-memory.dmp
memory/2460-1-0x00000000009D0000-0x00000000009D1000-memory.dmp