Overview
overview
10Static
static
3print20251...��.bat
windows10-2004-x64
10print20251...��.bat
windows11-21h2-x64
10print20251...ET.dll
windows10-2004-x64
1print20251...ET.dll
windows11-21h2-x64
1print20251...VC.exe
windows10-2004-x64
6print20251...VC.exe
windows11-21h2-x64
6print20251...to.dll
windows10-2004-x64
1print20251...to.dll
windows11-21h2-x64
1print20251...on.dll
windows10-2004-x64
1print20251...on.dll
windows11-21h2-x64
1print20251...er.dll
windows10-2004-x64
1print20251...er.dll
windows11-21h2-x64
1print20251...er.dll
windows10-2004-x64
1print20251...er.dll
windows11-21h2-x64
1print20251...VC.exe
windows10-2004-x64
1print20251...VC.exe
windows11-21h2-x64
1print20251...ll.bat
windows10-2004-x64
8print20251...ll.bat
windows11-21h2-x64
8print20251...rp.dll
windows10-2004-x64
1print20251...rp.dll
windows11-21h2-x64
1print20251...es.dll
windows10-2004-x64
1print20251...es.dll
windows11-21h2-x64
1print20251...um.dll
windows10-2004-x64
1print20251...um.dll
windows11-21h2-x64
1Analysis
- max time kernel
149s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
28/05/2026, 17:40
Static task
static1
Behavioral task
behavioral1
Sample
print20251118/AA-点击这里启动打印程序.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
print20251118/AA-点击这里启动打印程序.bat
Resource
win11-20260513-en
Behavioral task
behavioral3
Sample
print20251118/AutoUpdater.NET.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
print20251118/AutoUpdater.NET.dll
Resource
win11-20260513-en
Behavioral task
behavioral5
Sample
print20251118/BLMPrinterSVC.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
print20251118/BLMPrinterSVC.exe
Resource
win11-20260513-en
Behavioral task
behavioral7
Sample
print20251118/BouncyCastle.Crypto.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
print20251118/BouncyCastle.Crypto.dll
Resource
win11-20260513-en
Behavioral task
behavioral9
Sample
print20251118/Newtonsoft.Json.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
print20251118/Newtonsoft.Json.dll
Resource
win11-20260513-en
Behavioral task
behavioral11
Sample
print20251118/PdfiumViewer.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
print20251118/PdfiumViewer.dll
Resource
win11-20260513-en
Behavioral task
behavioral13
Sample
print20251118/QRCoder.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
print20251118/QRCoder.dll
Resource
win11-20260513-en
Behavioral task
behavioral15
Sample
print20251118/app.publish/BLMPrinterSVC.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
print20251118/app.publish/BLMPrinterSVC.exe
Resource
win11-20260513-en
Behavioral task
behavioral17
Sample
print20251118/fuxin_install.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral18
Sample
print20251118/fuxin_install.bat
Resource
win11-20260513-en
Behavioral task
behavioral19
Sample
print20251118/itextsharp.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral20
Sample
print20251118/itextsharp.dll
Resource
win11-20260513-en
Behavioral task
behavioral21
Sample
print20251118/nl/PdfiumViewer.resources.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral22
Sample
print20251118/nl/PdfiumViewer.resources.dll
Resource
win11-20260513-en
Behavioral task
behavioral23
Sample
print20251118/pdfium.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral24
Sample
print20251118/pdfium.dll
Resource
win11-20260513-en
General
- Target print20251118/BLMPrinterSVC.exe
- Size 101KB
- Sample260528-v855tsht6l
- SHA256 6fec49e6a3967c60312ec3a4be1cc27d678548e28807ffa72045a7a5624f2c76
- MD5 fe4f09ef6a6989a454cd5cc11f4a46f1
- SHA1 c9bfd5fb9ffc3f6c542733dabd4a39ee05b6bdd3
- SHA512 655ded90805ee6978c85ede00ade95512ef85289a6aab03c8102040fa2620f0b090e366e51eda3d9a770be71d8b6902f9b905598a032a359ce31e49d3e60e106
- SSDEEP 3072:9BNrO/jov199bNGdWMSVBg0Wykh4Rkh4JSkh43:9r4Mv/9bNGdWMSGN4u4T4
- TLSH T1BBA37C16B3E8C726CAEF077DA4B152154732E927D632EB1A1BD8649D2C737A04805BF3
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BLMPrinterSVC = "C:\\Users\\Admin\\AppData\\Local\\Temp\\print20251118\\BLMPrinterSVC.exe" BLMPrinterSVC.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 876 BLMPrinterSVC.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 876 BLMPrinterSVC.exe 876 BLMPrinterSVC.exe - Suspicious use of SendNotifyMessage 2 IoCs
pid Process 876 BLMPrinterSVC.exe 876 BLMPrinterSVC.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\print20251118\BLMPrinterSVC.exe"C:\Users\Admin\AppData\Local\Temp\print20251118\BLMPrinterSVC.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:876
-
C:\Users\Admin\AppData\Local\Temp\print20251118\BLMPrinterSVC.exeC:\Users\Admin\AppData\Local\Temp\print20251118\BLMPrinterSVC.exe1⤵PID:5080