Analysis
- max time kernel
148s - max time network
117s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
08/10/2026, 09:36
General
- Target DO4500272644.JS.js
- Size 5.0MB
- Sample261008-lk2cases3v
- SHA256 05167084fd34948df3b951e2509e9a30491bcc3614a8cdcccd9071176d8578a1
Malware Config
Extracted
-
remcos
-
7.3.1 Pro
-
RemoteHost
-
ocean012.duckdns.org:7474
-
oceanbiggi907.duckdns.org:7474
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
yut-QEKAE1
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Detects DonutLoader 2 IoCs
- Executes dropped EXE 1 IoCs
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Modifies registry class 2 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\DO4500272644.JS.js1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Documents\IVFRMNHAPNQFGACQ.exe"C:\Users\Admin\Documents\IVFRMNHAPNQFGACQ.exe" C:\Users\Admin\Documents\QCAGFQNPAHNMRFVI2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
IVFRMNHAPNQFGACQ.exe
QCAGFQNPAHNMRFVI
memory/4244-10-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-9-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-11-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-12-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-16-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-17-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-20-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-19-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-18-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-15-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-14-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-13-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-25-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-23-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-26-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-24-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-22-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-27-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-21-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-28-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-47-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-44-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-48-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-42-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-41-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-40-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-39-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-36-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-34-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-45-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-50-0x0000000016530000-0x00000000165D9000-memory.dmp
memory/4244-46-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-49-0x0000000016530000-0x0000000017530000-memory.dmp
memory/4244-43-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-38-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-37-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-35-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-33-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-32-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-51-0x0000000002F40000-0x0000000002FEF000-memory.dmp
memory/4244-31-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-30-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-29-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/4244-52-0x0000000180000000-0x000000018012C000-memory.dmp
memory/4244-55-0x0000000180000000-0x000000018012C000-memory.dmp
memory/4244-57-0x0000000180000000-0x000000018012C000-memory.dmp
memory/4244-56-0x0000000000400000-0x000000000047B000-memory.dmp