Analysis
- max time kernel
149s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
08/10/2026, 09:37
General
- Target Halkbank_Ekstre_620_011007950904500.js
- Size 2.8MB
- Sample261008-llppwsvth1
- SHA256 ad461be90463264d396129e047c57ec5ec3a10a0f616e73f049b0956b4ac26e2
Malware Config
Extracted
-
xworm
-
5.0
-
46.151.182.5:5050
-
TnH57crdR1U1MdWI
-
install_file
USB.exe
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 1 IoCs
- 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
- Enumerates video capture drivers 2 TTPs 1 IoCs
Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.
- 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 4 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.
- 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 AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 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.
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_620_011007950904500.js1⤵
- Checks computer location settings
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 15 /tn "WindowsSecurityUpdate" /tr "wscript.exe "C:\ProgramData\WindowsSecurityUpdate\WindowsSecurityUpdate.js"" /f2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 15 /tn "WindowsSecurityUpdate" /tr "wscript.exe "C:\ProgramData\WindowsSecurityUpdate\WindowsSecurityUpdate.js"" /f3⤵
- Scheduled Task/Job: Scheduled Task
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-
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C:\ProgramData\VPVSJSRLCSOVWZMYZHR\VPVSJSRLCSOVWZMYZHR.exe"C:\ProgramData\VPVSJSRLCSOVWZMYZHR\VPVSJSRLCSOVWZMYZHR.exe" "C:\ProgramData\VPVSJSRLCSOVWZMYZHR\VPVSJSRLCSOVWZMYZHR.ini"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Enumerates video capture drivers
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
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
1Replay Monitor
Loading Replay Monitor...
Downloads
VPVSJSRLCSOVWZMYZHR.exe
VPVSJSRLCSOVWZMYZHR.ini
VPVSJSRLCSOVWZMYZHR.zip
environment.ini
vcruntime140.dll
memory/4584-77-0x00000000FF3B0000-0x00000000FF3C0000-memory.dmp
memory/4584-119-0x00000000FF3B0000-0x00000000FF3C0000-memory.dmp
memory/4584-51-0x00000000037A0000-0x00000000037A1000-memory.dmp
memory/4584-54-0x00000000FF3B0000-0x00000000FF3C0000-memory.dmp
memory/4584-56-0x00000000FF3B0000-0x00000000FF3C0000-memory.dmp
memory/4584-53-0x00000000FF3B0000-0x00000000FF3C0000-memory.dmp
memory/4584-55-0x0000000003810000-0x0000000003820000-memory.dmp
memory/4584-52-0x00000000FF3B0000-0x00000000FF3C0000-memory.dmp
memory/4584-99-0x00000000FF3B0000-0x00000000FF3C0000-memory.dmp
memory/4584-152-0x00000000066F0000-0x00000000066FE000-memory.dmp
memory/4584-153-0x00000000067F0000-0x000000000688C000-memory.dmp
memory/4584-154-0x0000000007DC0000-0x0000000007E26000-memory.dmp
memory/4584-155-0x0000000066D80000-0x0000000066E09000-memory.dmp
memory/4584-157-0x0000000009510000-0x00000000095A2000-memory.dmp
memory/4584-158-0x0000000009B60000-0x000000000A104000-memory.dmp