Analysis
- max time kernel
149s - max time network
135s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
29/10/2026, 09:10
General
- Target doc00020261029202610.JS.js
- Size 4.3MB
- Sample261029-k5brpsys2n
- SHA256 2d8a0b4f814634be287990b923f90dd12f336915d311ed4106ab4102736e81e1
Malware Config
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Family: MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- Detects DonutLoader 2 IoCs
- MassLogger Main payload 1 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 39 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- NTFS ADS 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\doc00020261029202610.JS.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\doc00020261029202610.JS.js:Zone.Identifier"2⤵
- Executes a command shell one-liner
- NTFS ADS
-
-
C:\Users\Admin\Documents\PRRIQVUGEAKDSXMW.exe"C:\Users\Admin\Documents\PRRIQVUGEAKDSXMW.exe" C:\Users\Admin\Documents\WMXSDKAEGUVQIRRP2⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2JavaScript
1Windows Command Shell
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
PRRIQVUGEAKDSXMW.exe
WMXSDKAEGUVQIRRP
lua51.dll
memory/5392-14-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-15-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-16-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-17-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-18-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-22-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-23-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-21-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-20-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-19-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-26-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-25-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-24-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-27-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-31-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-32-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-30-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-29-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-28-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-33-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-34-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-35-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-36-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-40-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-39-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-38-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-37-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-48-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-55-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-54-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-53-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-52-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-51-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-50-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-49-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-47-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-46-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-45-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-44-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-43-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-42-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-41-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/5392-57-0x0000000002470000-0x00000000024F5000-memory.dmp
memory/5392-56-0x0000000002470000-0x0000000003470000-memory.dmp
memory/5392-58-0x000000002D120000-0x000000002D130000-memory.dmp
memory/5392-59-0x000000002D0A0000-0x000000002D124000-memory.dmp
memory/5392-60-0x000000002D120000-0x000000002D130000-memory.dmp
memory/5392-61-0x000000002D120000-0x000000002D130000-memory.dmp
memory/5392-62-0x000000002D120000-0x000000002D130000-memory.dmp
memory/5392-63-0x000000002F8B0000-0x000000002F900000-memory.dmp
memory/5392-65-0x0000000000400000-0x000000000040D000-memory.dmp
memory/5392-66-0x0000000066D80000-0x0000000066DF4000-memory.dmp