Overview
overview
8Static
static
3masScan_1....UI.exe
windows10-2004-x64
7masScan_1....UI.exe
windows11-21h2-x64
4masScan_1....et.dll
windows10-2004-x64
3masScan_1....et.dll
windows11-21h2-x64
3masScan_1....an.exe
windows10-2004-x64
3masScan_1....an.exe
windows11-21h2-x64
3masScan_1....00.dll
windows10-2004-x64
3masScan_1....00.dll
windows11-21h2-x64
3masScan_1....er.exe
windows10-2004-x64
7masScan_1....er.exe
windows11-21h2-x64
7masScan_1....13.exe
windows10-2004-x64
8masScan_1....13.exe
windows11-21h2-x64
8$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$SYSDIR/Packet.dll
windows10-2004-x64
3$SYSDIR/Packet.dll
windows11-21h2-x64
3$SYSDIR/pthreadVC.dll
windows10-2004-x64
3$SYSDIR/pthreadVC.dll
windows11-21h2-x64
3$SYSDIR/wpcap.dll
windows10-2004-x64
3$SYSDIR/wpcap.dll
windows11-21h2-x64
3masScan_1....ap.dll
windows10-2004-x64
3masScan_1....ap.dll
windows11-21h2-x64
3Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
11/05/2026, 00:05
Behavioral task
behavioral1
Sample
masScan_1.6/masScan_1.6/Massscan_GUI.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
masScan_1.6/masScan_1.6/Massscan_GUI.exe
Resource
win11-20250619-en
Behavioral task
behavioral3
Sample
masScan_1.6/masScan_1.6/Packet.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
masScan_1.6/masScan_1.6/Packet.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
masScan_1.6/masScan_1.6/masscan.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
masScan_1.6/masScan_1.6/masscan.exe
Resource
win11-20250610-en
Behavioral task
behavioral7
Sample
masScan_1.6/masScan_1.6/msvcr100.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
masScan_1.6/masScan_1.6/msvcr100.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
masScan_1.6/masScan_1.6/nlchecker.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
masScan_1.6/masScan_1.6/nlchecker.exe
Resource
win11-20250502-en
Behavioral task
behavioral11
Sample
masScan_1.6/masScan_1.6/winpcap-4.13.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
masScan_1.6/masScan_1.6/winpcap-4.13.exe
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
$SYSDIR/Packet.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
$SYSDIR/Packet.dll
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
$SYSDIR/pthreadVC.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
$SYSDIR/pthreadVC.dll
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
$SYSDIR/wpcap.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
$SYSDIR/wpcap.dll
Resource
win11-20260130-en
Behavioral task
behavioral25
Sample
masScan_1.6/masScan_1.6/wpcap.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral26
Sample
masScan_1.6/masScan_1.6/wpcap.dll
Resource
win11-20250502-en
General
- Target $SYSDIR/Packet.dll
- Size 99KB
- Sample260511-adn8lsbx9n
- SHA256 cd9f4fb077c25013226e0883f9ae02e9ced9b71f07637081e55ae70fd0788f29
- MD5 2ce150705bbeb30e6c8059cc530043aa
- SHA1 3d8615f9d8f8f7a5d78b3c06bf746948b9ef6ba5
- SHA512 9f7573ca679ef0cc0e1d815f605a399e87f7a046e3e51970d2c7597329b19e118cc2da7240ee854e13e31582f12bab8be506d1612ac81d5b453ef366d4674dcf
- SSDEEP 1536:zbDKMXRC2wKDDuDirGfqs97WcETlsxtl2o+V:PDKMtfuysAcETlsxtco8
- TLSH T1C2A38D02B993C072F4928A7D819587A2AB7F78537FE554DFEF6009890DA03D3277A271
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4128 wrote to memory of 4236 4128 rundll32.exe 85
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\Packet.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4128 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\Packet.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4236
-