Overview
overview
5Static
static
3setup.exe
windows10-2004-x64
5setup.exe
windows11-21h2-x64
4$PLUGINSDI...nu.dll
windows10-2004-x64
3$PLUGINSDI...nu.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows11-21h2-x64
3DOC/acrostolia.docx
windows10-2004-x64
1DOC/acrostolia.docx
windows11-21h2-x64
1DOC/adolescent.docx
windows10-2004-x64
1DOC/adolescent.docx
windows11-21h2-x64
1DOC/barretors.docx
windows10-2004-x64
1DOC/barretors.docx
windows11-21h2-x64
1DOC/cokers.docx
windows10-2004-x64
1DOC/cokers.docx
windows11-21h2-x64
1DOC/exodontic.docx
windows10-2004-x64
1DOC/exodontic.docx
windows11-21h2-x64
1DOC/malarious.docx
windows10-2004-x64
1DOC/malarious.docx
windows11-21h2-x64
1DOC/nonrat...c.docx
windows10-2004-x64
1DOC/nonrat...c.docx
windows11-21h2-x64
1DOC/sedgiest.docx
windows10-2004-x64
1DOC/sedgiest.docx
windows11-21h2-x64
1DOC/speechmaker.docx
windows10-2004-x64
1DOC/speechmaker.docx
windows11-21h2-x64
1DOC/sulfurizing.docx
windows10-2004-x64
1DOC/sulfurizing.docx
windows11-21h2-x64
1TEMP/_asyncio.dll
windows10-2004-x64
3TEMP/_asyncio.dll
windows11-21h2-x64
3TEMP/_bz2.dll
windows10-2004-x64
3TEMP/_bz2.dll
windows11-21h2-x64
3Analysis
- max time kernel
149s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
26/04/2026, 12:10
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
setup.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
DOC/acrostolia.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
DOC/acrostolia.docx
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
DOC/adolescent.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
DOC/adolescent.docx
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
DOC/barretors.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
DOC/barretors.docx
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
DOC/cokers.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
DOC/cokers.docx
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
DOC/exodontic.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
DOC/exodontic.docx
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
DOC/malarious.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
DOC/malarious.docx
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
DOC/nonrationalistic.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
DOC/nonrationalistic.docx
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
DOC/sedgiest.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
DOC/sedgiest.docx
Resource
win11-20260130-en
Behavioral task
behavioral25
Sample
DOC/speechmaker.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral26
Sample
DOC/speechmaker.docx
Resource
win11-20260130-en
Behavioral task
behavioral27
Sample
DOC/sulfurizing.docx
Resource
win10v2004-20260130-en
Behavioral task
behavioral28
Sample
DOC/sulfurizing.docx
Resource
win11-20260130-en
Behavioral task
behavioral29
Sample
TEMP/_asyncio.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral30
Sample
TEMP/_asyncio.dll
Resource
win11-20260130-en
Behavioral task
behavioral31
Sample
TEMP/_bz2.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral32
Sample
TEMP/_bz2.dll
Resource
win11-20260130-en
General
- Target TEMP/_bz2.dll
- Size 81KB
- Sample260426-pcfbmscs5n
- SHA256 b91468ab572115714a4d0ad15cc7baae046a05b0f49c16fe71c6ebbd0187f88a
- MD5 e6e5f044c5be607e75ba43402815f4ed
- SHA1 71ee4aa9b8e22c977070cc1feaf190460e052e24
- SHA512 0ed8df42d55d7d404dff45e7246ceb606b43c462ed7cf57f8c83d0310213597aa9e7e4cff54f99737ff0927b86eb2292da1d9ea3ba88c2ec1f50f56861965787
- SSDEEP 1536:Wc2zR6FP5tbGlA1Q38TkPOlIyLVoiyrcz890fIUYR:IzIFRtSQQsTwOlIyLVJcb
- TLSH T1A5837F80F8C64BDEFF167B3086D5F55BA13C92759B70C9E3E66ABD341A483A76130206
- 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 4696 wrote to memory of 4468 4696 rundll32.exe 83
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\TEMP\_bz2.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4696 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\TEMP\_bz2.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4468
-