Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
13/08/2026, 11:37
Static task
static1
Behavioral task
behavioral1
Sample
Factura No 3319786.JS.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Factura No 3319786.JS.js
Resource
win11ltsc2024-20260709-en
General
- Target Factura No 3319786.JS.js
- Size 3.3MB
- Sample260813-nrf12sxvby
- SHA256 12de494db7efffd346e9c434950c72da25b8cd3f71b5d326870ef275c202cbbe
- MD5 fbbffaa1962ecfa57bdfb033d70b1510
- SHA1 95248573d29218e0d21d78a7b643c61878acf51c
- SHA512 0ada0ef40730eea5e55ea90643883ce271fe62c3ef133c4baa19f6d8e1f161f33322e274c14568151624bbc3586bea41118acff76b1d1b250789d8d17f816528
- SSDEEP 98304:5jpR5H3jAjH8S19FqGQAGUsdk8Dy3PWVgjgpJ9Md1sIrBbRlVdPbTqumCU:5jpRZjAjH8SnFqGQd286PWajginsmz/0
- TLSH T1D3F583803B4499737B225B6C4E379922E80D598324C6DB153E6CDA0877BCD97D3D8AE3
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
mail.nemail.co
-
Port
587
-
Username
-
Password
10xVintge
-
Email to
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Family: VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Detects DonutLoader 2 IoCs
resource yara_rule behavioral2/memory/3424-54-0x0000000015390000-0x00000000153DB000-memory.dmp family_donutloader behavioral2/memory/3424-53-0x0000000015390000-0x0000000016390000-memory.dmp family_donutloader - Executes dropped EXE 1 IoCs
pid Process 3424 KCBYVEHYJZETHDYQ.PIF - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- 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 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KCBYVEHYJZETHDYQ.PIF Key opened \REGISTRY\USER\S-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KCBYVEHYJZETHDYQ.PIF Key opened \REGISTRY\USER\S-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KCBYVEHYJZETHDYQ.PIF - Looks up external IP address via web service 1 TTPs 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 reallyfreegeoip.org 11 reallyfreegeoip.org 1 checkip.dyndns.org - Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ wscript.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{d3162b92-9365-467a-956b-92703aca08af}\Instance\ wscript.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3424 KCBYVEHYJZETHDYQ.PIF 3424 KCBYVEHYJZETHDYQ.PIF - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3424 KCBYVEHYJZETHDYQ.PIF - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4456 wrote to memory of 3424 4456 wscript.exe 89 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KCBYVEHYJZETHDYQ.PIF - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KCBYVEHYJZETHDYQ.PIF
Processes
-
C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\Factura No 3319786.JS.js"1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4456 -
C:\Users\Admin\Documents\KCBYVEHYJZETHDYQ.PIF"C:\Users\Admin\Documents\KCBYVEHYJZETHDYQ.PIF" C:\Users\Admin\Documents\KCBYVEHYJZETHDYQ.ttf2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3424
-
Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\Documents\KCBYVEHYJZETHDYQ.PIF
- Size 467KB
- SHA256 52f0c0230b580e2fdf53a378b5c6d0db9829af900dae43e0df8f18635cd9f0c1
- MD5 7f47d5ea49f77b99e25ca2918cea8920
- SHA1 b7b3dbcf32f3b7a78554efee75f0ad5746126c69
- SHA512 04f24c43bc290adb84d23453e3dbbbc317e2b2c9c752e4289501a9358c76116188a7d3cd9d3c44acf23254c4aa39bfaac49341e0085ed6d9e9f9eb1016325453
- SSDEEP 12288:26DGsq60U/A62U1q6CkrlA1NIcjBM4rF3/W:26DGsqEVAWhoIcO4rF3/W
- TLSH T17DA43703A2B353BDC667C1308B978BB2BA32BC9512316DBE2454FB311DB1CA1479F529
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\Documents\KCBYVEHYJZETHDYQ.ttf
- Size 550KB
- SHA256 0166b3c59a51bfc9ccd9718fc09bc380fb6a21b36bed008978a4a1988f51d38b
- MD5 dc2f6f12dc6c87574655dd90d47990bf
- SHA1 12935a95b0cd58e7a3f7d7abbf5935111d25ae68
- SHA512 8323bd23f5f4f3198deaa3af2f5a4cd2c03853bba663a67e08095e9a242895347ae9c3f9c08230d881319da4e3db5aafe081670b0236f411bad03f7e10ed76bc
- SSDEEP 12288:uZanBCw2X4zq15iwQoDRtCx319LIOIm1Gx1clGBu:Kats5iwZREx3XkOIm1Gx1clGBu
- TLSH T11DC49D8BB6DB796852F752E0CC2B4D8BB475C5E6034D05970F04D0E07A3176CEBE9A2A
- MD5 SHA1 SHA512 SSDEEP TLSH