Analysis
- max time kernel
148s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
27/10/2026, 06:40
General
- Target SYD3441.js
- Size 122KB
- Sample261027-hfpk6aa16s
- SHA256 28c2751aad8d27f5da99f5c55f009f9321eceeb3b68a834d58cd36502baf3981
Malware Config
Extracted
-
ps1
-
ps1.dropper
https://lingering-cloud-8a93.zinhoooo.workers.dev/qsyfduzbj
-
exe.dropper
https://lingering-cloud-8a93.zinhoooo.workers.dev/qsyfduzbj
Signatures
- Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 1 IoCs
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Badlisted process makes network request 2 IoCs
Network request originating from process or tool commonly abused by malware.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Suspicious use of SetThreadContext 1 IoCs
- Command and Scripting Interpreter: JavaScript 1 TTPs
- 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.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\SYD3441.js1⤵
- Reads the TCP/IP host and domain name from the registry
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Admin\AppData\Local\Temp\rad2729D.tmp.ps1'; Remove-Item -LiteralPath 'C:\Users\Admin\AppData\Local\Temp\rad2729D.tmp.ps1' -Force -ErrorAction SilentlyContinue"1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
rad2729D.tmp.ps1
memory/3220-15-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-10-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-6-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-5-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-8-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-9-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-1-0x00007FF84419F000-0x00007FF8441A0000-memory.dmp
memory/3220-11-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-12-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-13-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-4-0x000002A130B50000-0x000002A130B72000-memory.dmp
memory/3220-14-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-20-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-18-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-19-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-17-0x000002A130BC0000-0x000002A130BDE000-memory.dmp
memory/3220-16-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-21-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/3220-26-0x00007FF844010000-0x00007FF8449B4000-memory.dmp
memory/4392-22-0x0000000000400000-0x0000000000446000-memory.dmp
memory/4392-24-0x00000000012E0000-0x0000000001654000-memory.dmp
memory/4392-23-0x0000000000F00000-0x0000000000F46000-memory.dmp
memory/4392-27-0x0000000000F00000-0x0000000000F46000-memory.dmp
memory/4392-28-0x0000000000F00000-0x0000000000F46000-memory.dmp