Analysis
- max time kernel
299s - max time network
292s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
18/09/2026, 15:08
General
- Target Invoice.js
- Size 2.6MB
- Sample260918-sh2cvage92
- SHA256 14f8e0f7b17e358a675fa7f59eb3f1d1414b3e1cde42f2a52fda0c85ec5abb32
Malware Config
Extracted
-
remcos
-
7.3.1 Pro
-
RemoteHost
-
82.29.92.60:35121
-
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-E5XT2M
-
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: Remcos
Remcos is a closed-source remote control and surveillance software.
- UAC bypass 3 TTPs 2 IoCs
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- 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).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 1 IoCs
- Suspicious use of FindShellTrayWindow 5 IoCs
- Suspicious use of SendNotifyMessage 5 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Invoice.js1⤵
- Creates a file in the Startup directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\OnI82mS6x\lwrbrfezywqbzxit.exe"C:\Users\Admin\AppData\Local\Temp\OnI82mS6x\lwrbrfezywqbzxit.exe" "C:\Users\Admin\AppData\Local\Temp\OnI82mS6x\tdvnwntpkmyydjrgxbbanjgmwdmr.ini"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\charmap.exeC:\Windows\Syswow64\charmap.exe3⤵
- UAC bypass
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
acnwflvqzayefquoiaqf
lwrbrfezywqbzxit.exe
tdvnwntpkmyydjrgxbbanjgmwdmr.ini
memory/3360-23-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-25-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-14-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-15-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-16-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-17-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-18-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-19-0x0000000000910000-0x000000000099F000-memory.dmp
memory/3360-20-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-21-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-22-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-12-0x0000000000910000-0x000000000099F000-memory.dmp
memory/3360-24-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-13-0x0000000000910000-0x000000000099F000-memory.dmp
memory/3360-26-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-27-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-28-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-29-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-30-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-33-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-34-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-36-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-35-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-37-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-38-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-39-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-40-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3360-41-0x0000000000400000-0x0000000000490000-memory.dmp