Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
04/06/2026, 09:20
General
- Target FedEx Tax_Certificate.pdf.JS.js
- Size 4.7MB
- Sample260604-la1ysacy3m
- SHA256 ba6af76e2db508b15fa6ed7e81558ff0c42fea03f18f1595988ea983689bd83d
Malware Config
Extracted
-
remcos
-
RemcosAgentNoAutostart
-
209.54.101.187:2404
-
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-OHZGH1
-
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).
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\FedEx Tax_Certificate.pdf.JS.js"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Public\Libraries\KWMIKLIPVWABMQVD.exe"C:\Users\Public\Libraries\KWMIKLIPVWABMQVD.exe" C:\Users\Public\Libraries\KWMIKLIPVWABMQVD.ttf2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
KWMIKLIPVWABMQVD.exe
KWMIKLIPVWABMQVD.ttf
memory/2180-10-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-11-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-15-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-12-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-14-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-13-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-18-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-17-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-16-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-19-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-20-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-24-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-23-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-22-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-21-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-25-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-26-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-27-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-33-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-39-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-45-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-44-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-43-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-42-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-41-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-40-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-38-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-37-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-47-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-46-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-36-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-35-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-34-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-32-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-31-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-30-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-29-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-28-0x000000007FE70000-0x000000007FE80000-memory.dmp
memory/2180-49-0x0000000017730000-0x00000000177B9000-memory.dmp
memory/2180-48-0x0000000017730000-0x0000000018730000-memory.dmp
memory/2180-50-0x0000000002A90000-0x0000000002B1D000-memory.dmp
memory/2180-51-0x0000000000400000-0x0000000000482000-memory.dmp