Analysis
- max time kernel
148s - max time network
119s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
03/08/2026, 13:10
General
- Target A3726DK23GTMHYOM765UI.js
- Size 4.5MB
- Sample260803-qefwmaaa47
- SHA256 a35367e184a52cf7446f0fc70c337a0b603adfe9e60bbf5a064c7e987e6e6580
Malware Config
Extracted
-
remcos
-
7.2.6 Pro
-
Pimto
-
107.173.143.56:2407
-
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
Rmc-K3MPNY
-
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.
- Suricata alert: REMCOS RAT Malware Inbound C2 Communication 3 IoCs
Network activity triggered a Suricata alert
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication 5 IoCs
Network activity triggered a Suricata alert
- 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).
- Modifies registry class 2 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\A3726DK23GTMHYOM765UI.js1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Documents\CHZPEQBJIAURMVNL.PIF"C:\Users\Admin\Documents\CHZPEQBJIAURMVNL.PIF" C:\Users\Admin\Documents\CHZPEQBJIAURMVNL.ttf2⤵
- Suricata alert: REMCOS RAT Malware Inbound C2 Communication
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
CHZPEQBJIAURMVNL.PIF
CHZPEQBJIAURMVNL.ttf
memory/3664-9-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-10-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-11-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-12-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-15-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-17-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-16-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-13-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-14-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-18-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-21-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-20-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-19-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-25-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-26-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-24-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-27-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-28-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-23-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-22-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-29-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-43-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-53-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-52-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-51-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-50-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-55-0x0000000016280000-0x0000000016325000-memory.dmp
memory/3664-54-0x0000000016280000-0x0000000017280000-memory.dmp
memory/3664-49-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-48-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-47-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-46-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-45-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-44-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-40-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-39-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-38-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-37-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-36-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-35-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-34-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-33-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-32-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-42-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-41-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-31-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-30-0x000000002A4F0000-0x000000002A500000-memory.dmp
memory/3664-56-0x0000000002D00000-0x0000000002DAB000-memory.dmp
memory/3664-57-0x0000000180000000-0x000000018012D000-memory.dmp
memory/3664-60-0x0000000180000000-0x000000018012D000-memory.dmp
memory/3664-61-0x0000000000400000-0x000000000047B000-memory.dmp
memory/3664-62-0x0000000180000000-0x000000018012D000-memory.dmp