Overview
overview
7Static
static
3STREAMUP S....0.exe
windows10-ltsc_2021-x64
7$PLUGINSDI...ls.dll
windows10-ltsc_2021-x64
3$PLUGINSDI...em.dll
windows10-ltsc_2021-x64
3$PLUGINSDIR/UAC.dll
windows10-ltsc_2021-x64
3$PLUGINSDI...ll.dll
windows10-ltsc_2021-x64
3LICENSES.c...m.html
windows10-ltsc_2021-x64
3STREAMUP.exe
windows10-ltsc_2021-x64
7d3dcompiler_47.dll
windows10-ltsc_2021-x64
1dxcompiler.dll
windows10-ltsc_2021-x64
1dxil.dll
windows10-ltsc_2021-x64
1ffmpeg.dll
windows10-ltsc_2021-x64
1libEGL.dll
windows10-ltsc_2021-x64
1libGLESv2.dll
windows10-ltsc_2021-x64
1resources/elevate.exe
windows10-ltsc_2021-x64
3vk_swiftshader.dll
windows10-ltsc_2021-x64
1vulkan-1.dll
windows10-ltsc_2021-x64
1$PLUGINSDI...gs.dll
windows10-ltsc_2021-x64
3$PLUGINSDI...ec.dll
windows10-ltsc_2021-x64
3$PLUGINSDI...7z.dll
windows10-ltsc_2021-x64
3$R0/Uninst...UP.exe
windows10-ltsc_2021-x64
7$PLUGINSDI...ls.dll
windows10-ltsc_2021-x64
3$PLUGINSDI...em.dll
windows10-ltsc_2021-x64
3$PLUGINSDIR/UAC.dll
windows10-ltsc_2021-x64
3$PLUGINSDI...ll.dll
windows10-ltsc_2021-x64
3$PLUGINSDI...gs.dll
windows10-ltsc_2021-x64
3$PLUGINSDI...ec.dll
windows10-ltsc_2021-x64
3Analysis
- max time kernel
1049s - max time network
545s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
10/09/2026, 15:28
Static task
static1
Behavioral task
behavioral1
Sample
STREAMUP Setup 2.6.0.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/UAC.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/WinShell.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral6
Sample
LICENSES.chromium.html
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral7
Sample
STREAMUP.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral8
Sample
d3dcompiler_47.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral9
Sample
dxcompiler.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral10
Sample
dxil.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral11
Sample
ffmpeg.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral12
Sample
libEGL.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral13
Sample
libGLESv2.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral14
Sample
resources/elevate.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral15
Sample
vk_swiftshader.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral16
Sample
vulkan-1.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/nsis7z.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral20
Sample
$R0/Uninstall STREAMUP.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral21
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral22
Sample
$PLUGINSDIR/System.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral23
Sample
$PLUGINSDIR/UAC.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral24
Sample
$PLUGINSDIR/WinShell.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral25
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral26
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10ltsc2021-20260513-en
General
- Target STREAMUP Setup 2.6.0.exe
- Size 83.1MB
- Sample260910-swj1qa1grd
- SHA256 ed3331edc9c7aa5b16abb45c52c04475b02a0c89f6d2ddf6f34b36f1a400f53a
- MD5 37669d7f8a129ecb5c37ef0f80099494
- SHA1 c94e9ee459902707b27eff9efc255cff6ce061bc
- SHA512 e976388c1fddc5e2e00d3606bbdd9e2e533c451bd6035dd38e47833a0ac96decd5cfd17a198427bd0be040abcbf1dd62903dbda0b99b9684045343ade2615e99
- SSDEEP 1572864:iH2YcVeMajaZV+XfyK+/R8hpvM45nswi6ME3R+C/G3LX0l1:iH2YGgyKAeMM7ME3YxbX0l1
- TLSH T14E1833BD50A6B151F282CA7CFEE38B7098D43B466913FD7CB92DD58A42C6C28DC83645
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Loads dropped DLL 4 IoCs
pid Process 4348 STREAMUP Setup 2.6.0.exe 4348 STREAMUP Setup 2.6.0.exe 4348 STREAMUP Setup 2.6.0.exe 4348 STREAMUP Setup 2.6.0.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 STREAMUP Setup 2.6.0.exe
Processes
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\nsu3729.tmp\StdUtils.dll
- Size 100KB
- SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
- MD5 c6a6e03f77c313b267498515488c5740
- SHA1 3d49fc2784b9450962ed6b82b46e9c3c957d7c15
- SHA512 9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803
- SSDEEP 3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v
- TLSH T125A33B62A2FA9CF5E4E70B3D1469BB264CBB7B383431D93F2342054B8534586DA2D35B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\nsu3729.tmp\System.dll
- Size 12KB
- SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
- MD5 0d7ad4f45dc6f5aa87f606d0331c6901
- SHA1 48df0911f0484cbe2a8cdd5362140b63c41ee457
- SHA512 c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9
- SSDEEP 192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6
- TLSH T1BA428E12977049F2F1A0183C10A67F265FBEAE5C1BE445A39FE380867D652DF9436343
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\nsu3729.tmp\UAC.dll
- Size 14KB
- SHA256 2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
- MD5 adb29e6b186daa765dc750128649b63d
- SHA1 160cbdc4cb0ac2c142d361df138c537aa7e708c9
- SHA512 b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada
- SSDEEP 192:DiF6v2imI36Op/tGZGfWxdyWHD0I53vLl7WVl8e04IpDlPjs:DGVY6ClGoWxXH75T1WVl83lLs
- TLSH T10F623AAA62E847BEE2221636B96723130BFDB5203DA1D01F4D531E596C30BE3953D61A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\nsu3729.tmp\nsDialogs.dll
- Size 9KB
- SHA256 1e40211af65923c2f4fd02ce021458a7745d28e2f383835e3015e96575632172
- MD5 466179e1c8ee8a1ff5e4427dbb6c4a01
- SHA1 eb607467009074278e4bd50c7eab400e95ae48f7
- SHA512 7508a29c722d45297bfb090c8eb49bd1560ef7d4b35413f16a8aed62d3b1030a93d001a09de98c2b9fea9acf062dc99a7278786f4ece222e7436b261d14ca817
- SSDEEP 192:olsHeylO012En8pqHtcE0PuAgkOyvIFc:oATI0d8pUP0WAgkBvIFc
- TLSH T1D0120892E6E450B3C5D6133F35AE2B2DCBBD5329B0922C0087738E4979795B66E38347
- MD5 SHA1 SHA512 SSDEEP TLSH