Analysis
- max time kernel
149s - max time network
138s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
04/11/2026, 06:52
General
- Target AHK_32.js
- Size 3.9MB
- Sample261104-hm3flatx2l
- SHA256 7bcc28e8c5b0bfa9bcd311331c07d1e7bdeacc354b232f794c454fa083a2d64c
Malware Config
Extracted
-
remcos
-
BN432
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kingremcos2026.duckdns.org:2404
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www.kingmethodclassprojectnow.com:2404
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www.kingmethodclassprojectnowbackup.com:2404
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www.kingmethodclassprojectnowbackup1.com:2404
-
audio_folder
MicRecords
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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
folder
-
mouse_option
false
-
mutex
Rmc-FXSH8T
-
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 8 IoCs
Network activity triggered a Suricata alert
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication 10 IoCs
Network activity triggered a Suricata alert
- Detects DonutLoader 1 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).
- 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.
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
- outlook_office_path 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\AHK_32.js1⤵
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\IMFWBSFRKWPHTKU\IMFWBSFRKWPHTKU.exe"C:\ProgramData\IMFWBSFRKWPHTKU\IMFWBSFRKWPHTKU.exe" "C:\ProgramData\IMFWBSFRKWPHTKU\IMFWBSFRKWPHTKU.ini"2⤵
- Suricata alert: REMCOS RAT Malware Inbound C2 Communication
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication
- Executes dropped EXE
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- outlook_office_path
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
IMFWBSFRKWPHTKU.exe
IMFWBSFRKWPHTKU.ini
IMFWBSFRKWPHTKU.zip
environment.ini
vcruntime140.dll
logs.dat
memory/1252-355-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-375-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-64-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-87-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-62-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-428-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-443-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-63-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-66-0x00000000FFB10000-0x00000000FFB20000-memory.dmp
memory/1252-65-0x00000000047F0000-0x000000000487B000-memory.dmp
memory/1252-738-0x0000000005290000-0x0000000005320000-memory.dmp
memory/1252-739-0x0000000010000000-0x00000000100F7000-memory.dmp
memory/1252-743-0x0000000010000000-0x00000000100F7000-memory.dmp
memory/1252-742-0x0000000010000000-0x00000000100F7000-memory.dmp
memory/1252-745-0x0000000066D80000-0x0000000066E09000-memory.dmp
memory/1252-61-0x0000000001300000-0x0000000001301000-memory.dmp