Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
05/11/2026, 00:12
General
- Target POTWIERDZENIE_PLATNOSCI_TRANSAKCJA_ZAKONCZONA_281000531.js
- Size 4.7MB
- Sample261105-ahawsawsgt
- SHA256 8d39b5c87db34ffbbcbbde1f5235694fd8aaef3d1a286c23f0d6518299f200bc
Malware Config
Extracted
-
remcos
-
7.3.1 Pro
-
29_10_26_RemoteHost
-
derealforcloves.duckdns.org:8110
-
brtannyrose.duckdns.org:8110
-
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-1T5MK3
-
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
- 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 2 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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.
- Modifies registry class 2 IoCs
- NTFS ADS 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- outlook_office_path 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\POTWIERDZENIE_PLATNOSCI_TRANSAKCJA_ZAKONCZONA_281000531.js1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\POTWIERDZENIE_PLATNOSCI_TRANSAKCJA_ZAKONCZONA_281000531.js:Zone.Identifier"2⤵
- Executes a command shell one-liner
- NTFS ADS
-
-
C:\Users\Admin\Documents\OFANABLLQJBBWJUI.exe"C:\Users\Admin\Documents\OFANABLLQJBBWJUI.exe" C:\Users\Admin\Documents\IUJWBBJQLLBANAFO2⤵
- Executes dropped EXE
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Reads the TCP/IP host and domain name from the registry
- outlook_office_path
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
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
IUJWBBJQLLBANAFO
OFANABLLQJBBWJUI.exe
lua51.dll
memory/2320-15-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-14-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-16-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-17-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-22-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-21-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-20-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-25-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-26-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-28-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-31-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-30-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-33-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-32-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-29-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-27-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-24-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-23-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-19-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-34-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-18-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-40-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-39-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-51-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-58-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-60-0x00000000024F0000-0x0000000002599000-memory.dmp
memory/2320-57-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-59-0x00000000024F0000-0x00000000034F0000-memory.dmp
memory/2320-61-0x00000000144F0000-0x000000001459F000-memory.dmp
memory/2320-56-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-49-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-48-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-47-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-46-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-45-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-55-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-54-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-53-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-52-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-50-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-44-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-43-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-42-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-41-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-38-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-37-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-35-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-36-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/2320-62-0x0000000000400000-0x000000000040D000-memory.dmp
memory/2320-63-0x0000000066D80000-0x0000000066DF4000-memory.dmp
memory/2320-70-0x0000000180000000-0x000000018012C000-memory.dmp
memory/2320-73-0x0000000180000000-0x000000018012C000-memory.dmp
memory/2320-74-0x0000000180000000-0x000000018012C000-memory.dmp