Overview
overview
7Static
static
3FleetInsta...2).exe
windows10-2004-x64
7FleetInsta...2).exe
windows11-ltsc_2024-x64
7$PLUGINSDI...nu.dll
windows10-2004-x64
3$PLUGINSDI...nu.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows11-ltsc_2024-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows11-ltsc_2024-x64
3$TEMP/Micr...up.exe
windows10-2004-x64
6$TEMP/Micr...up.exe
windows11-ltsc_2024-x64
6_up_/node_...i.node
ubuntu-18.04-amd64
_up_/node_...i.node
debian-9-armhf
_up_/node_...i.node
debian-9-mips
_up_/node_...i.node
debian-9-mipsel
_up_/node_...i.node
ubuntu-18.04-amd64
1_up_/node_...i.node
ubuntu-18.04-amd64
1_up_/node_...i.node
ubuntu-18.04-amd64
_up_/node_...i.node
debian-9-armhf
_up_/node_...i.node
debian-9-mips
_up_/node_...i.node
debian-9-mipsel
_up_/node_...i.node
debian-12-armhf
1_up_/node_...i.node
ubuntu-18.04-amd64
1_up_/node_...i.node
ubuntu-18.04-amd64
_up_/node_...i.node
debian-9-armhf
_up_/node_...i.node
debian-9-mips
_up_/node_...i.node
debian-9-mipsel
_up_/node_...i.node
ubuntu-18.04-amd64
_up_/node_...i.node
debian-9-armhf
_up_/node_...i.node
debian-9-mips
_up_/node_...i.node
debian-9-mipsel
Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
05/09/2026, 16:51
Static task
static1
Behavioral task
behavioral1
Sample
FleetInstaller (2).exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
FleetInstaller (2).exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11ltsc2024-20260710-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsis_tauri_utils.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsis_tauri_utils.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral11
Sample
$TEMP/MicrosoftEdgeWebview2Setup.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
$TEMP/MicrosoftEdgeWebview2Setup.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral13
Sample
_up_/node_modules/koffi/build/koffi/freebsd_arm64/koffi.node
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral14
Sample
_up_/node_modules/koffi/build/koffi/freebsd_arm64/koffi.node
Resource
debian9-armhf-20260513-en
Behavioral task
behavioral15
Sample
_up_/node_modules/koffi/build/koffi/freebsd_arm64/koffi.node
Resource
debian9-mipsbe-20260513-en
Behavioral task
behavioral16
Sample
_up_/node_modules/koffi/build/koffi/freebsd_arm64/koffi.node
Resource
debian9-mipsel-20260513-en
Behavioral task
behavioral17
Sample
_up_/node_modules/koffi/build/koffi/freebsd_ia32/koffi.node
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral18
Sample
_up_/node_modules/koffi/build/koffi/freebsd_x64/koffi.node
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral19
Sample
_up_/node_modules/koffi/build/koffi/linux_arm64/koffi.node
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral20
Sample
_up_/node_modules/koffi/build/koffi/linux_arm64/koffi.node
Resource
debian9-armhf-20260513-en
Behavioral task
behavioral21
Sample
_up_/node_modules/koffi/build/koffi/linux_arm64/koffi.node
Resource
debian9-mipsbe-20260513-en
Behavioral task
behavioral22
Sample
_up_/node_modules/koffi/build/koffi/linux_arm64/koffi.node
Resource
debian9-mipsel-20260513-en
Behavioral task
behavioral23
Sample
_up_/node_modules/koffi/build/koffi/linux_armhf/koffi.node
Resource
debian12-armhf-20260127-en
Behavioral task
behavioral24
Sample
_up_/node_modules/koffi/build/koffi/linux_ia32/koffi.node
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral25
Sample
_up_/node_modules/koffi/build/koffi/linux_loong64/koffi.node
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral26
Sample
_up_/node_modules/koffi/build/koffi/linux_loong64/koffi.node
Resource
debian9-armhf-20260513-en
Behavioral task
behavioral27
Sample
_up_/node_modules/koffi/build/koffi/linux_loong64/koffi.node
Resource
debian9-mipsbe-20260513-en
Behavioral task
behavioral28
Sample
_up_/node_modules/koffi/build/koffi/linux_loong64/koffi.node
Resource
debian9-mipsel-20260513-en
Behavioral task
behavioral29
Sample
_up_/node_modules/koffi/build/koffi/linux_riscv64d/koffi.node
Resource
ubuntu1804-amd64-20260513-en
Behavioral task
behavioral30
Sample
_up_/node_modules/koffi/build/koffi/linux_riscv64d/koffi.node
Resource
debian9-armhf-20260513-en
Behavioral task
behavioral31
Sample
_up_/node_modules/koffi/build/koffi/linux_riscv64d/koffi.node
Resource
debian9-mipsbe-20260513-en
Behavioral task
behavioral32
Sample
_up_/node_modules/koffi/build/koffi/linux_riscv64d/koffi.node
Resource
debian9-mipsel-20260513-en
General
- Target $PLUGINSDIR/nsis_tauri_utils.dll
- Size 33KB
- Sample260905-vdb89seh84
- SHA256 5ba143b5db4a87d32d6e7802e033330aae56cbceabe0d1e3ba41948385ad4709
- MD5 948eaa3cb78c2dcdd9eb1ab120ae0f65
- SHA1 75197fee3c6a814fe035788d1c34ead39349b860
- SHA512 f7c511e8c73ef6ee9b72c88cd73b2d454a6ffc12144118df2276ea3f5c34175df0d9d15a435035575ca2b171789fe348d7a9028b702b47dda749ee17e03ae7c1
- SSDEEP 768:K/wOD4gzTVpAVk2h5Rsekk55aCukBFKpnp0jdhK7W+qVG:8wODZzTrAV5Oevq4DtXHVG
- TLSH T188F24A48FDC57EBAE2CF05710809467E4A6FC8081700C96BE3722EA3D5A67329ED525F
- 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 4900 wrote to memory of 2328 4900 rundll32.exe 85
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis_tauri_utils.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4900 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis_tauri_utils.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:2328
-