Analysis
- max time kernel
149s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
22/10/2026, 04:25
General
- Target Swift_Transaction7398.JS.js
- Size 6.6MB
- Sample261022-e196tacw3k
- SHA256 497befff3913668d098d346093f5b3647dcfb6b9924783b25b01d7bc038779bc
Malware Config
Extracted
-
remcos
-
7.3.1 Pro
-
RemoteHost
-
ocean012.duckdns.org:7474
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oceanbiggi907.duckdns.org:7474
-
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
remcos
-
mouse_option
false
-
mutex
yut-QEKAE1
-
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 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 3 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.
- NTFS ADS 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of WriteProcessMemory 6 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.
- outlook_office_path 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Swift_Transaction7398.JS.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\Swift_Transaction7398.JS.js:Zone.Identifier"2⤵
- Executes a command shell one-liner
- NTFS ADS
-
-
C:\Users\Admin\Documents\TSZSDEERCUVECQNJ.exe"C:\Users\Admin\Documents\TSZSDEERCUVECQNJ.exe" C:\Users\Admin\Documents\JNQCEVUCREEDSZST2⤵
- Executes dropped EXE
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of WriteProcessMemory
- outlook_office_path
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c schtasks /query /tn "TSZSDEERCUVECQNJ" 2>nul3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exeschtasks /query /tn "TSZSDEERCUVECQNJ"4⤵
-
-
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c schtasks /create /sc minute /mo 10 /tn "TSZSDEERCUVECQNJ" /tr "wscript.exe \"C:\Users\Admin\Documents\JNQCEVUCREEDSZST.vbs\"" /ru "Admin" /f /it3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 10 /tn "TSZSDEERCUVECQNJ" /tr "wscript.exe \"C:\Users\Admin\Documents\JNQCEVUCREEDSZST.vbs\"" /ru "Admin" /f /it4⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
-
C:\Windows\system32\wscript.exewscript.exe1⤵
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2JavaScript
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
Login Data For Account.tmp
JNQCEVUCREEDSZST
TSZSDEERCUVECQNJ.exe
TSZSDEERCUVECQNJ.mui
lua51.dll
memory/1136-15-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-16-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-17-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-18-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-19-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-26-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-25-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-24-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-23-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-22-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-28-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-29-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-27-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-35-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-34-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-33-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-32-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-30-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-31-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-36-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-37-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-40-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-39-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-38-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-44-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-64-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-63-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-62-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-65-0x00000000026C0000-0x00000000036C0000-memory.dmp
memory/1136-66-0x0000000014690000-0x000000001473F000-memory.dmp
memory/1136-61-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-60-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-59-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-58-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-57-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-56-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-55-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-54-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-53-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-52-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-51-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-50-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-49-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-48-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-47-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-46-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-45-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-43-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-42-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-41-0x0000000057FD0000-0x0000000057FE0000-memory.dmp
memory/1136-67-0x0000000180000000-0x000000018012C000-memory.dmp
memory/1136-70-0x0000000180000000-0x000000018012C000-memory.dmp
memory/1136-71-0x0000000180000000-0x000000018012C000-memory.dmp
memory/1136-78-0x0000000000400000-0x000000000040D000-memory.dmp
memory/1136-79-0x0000000066D80000-0x0000000066DF4000-memory.dmp