Overview
overview
7Static
static
3OBS-Studio...er.exe
windows10-2004-x64
7OBS-Studio...er.exe
windows11-21h2-x64
7$APPDATA/o...32.dll
windows10-2004-x64
3$APPDATA/o...32.dll
windows11-21h2-x64
3$APPDATA/o...64.dll
windows10-2004-x64
1$APPDATA/o...64.dll
windows11-21h2-x64
1$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows11-21h2-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...64.exe
windows10-2004-x64
4$PLUGINSDI...64.exe
windows11-21h2-x64
4$PLUGINSDI...es.exe
windows10-2004-x64
1$PLUGINSDI...es.exe
windows11-21h2-x64
1bin/64bit/Qt6Core.dll
windows10-2004-x64
1bin/64bit/Qt6Core.dll
windows11-21h2-x64
1bin/64bit/Qt6Gui.dll
windows10-2004-x64
1bin/64bit/Qt6Gui.dll
windows11-21h2-x64
1bin/64bit/...rk.dll
windows10-2004-x64
1bin/64bit/...rk.dll
windows11-21h2-x64
1bin/64bit/Qt6Svg.dll
windows10-2004-x64
1bin/64bit/Qt6Svg.dll
windows11-21h2-x64
1bin/64bit/...ts.dll
windows10-2004-x64
1bin/64bit/...ts.dll
windows11-21h2-x64
1bin/64bit/Qt6Xml.dll
windows10-2004-x64
1bin/64bit/Qt6Xml.dll
windows11-21h2-x64
1bin/64bit/...61.dll
windows10-2004-x64
1bin/64bit/...61.dll
windows11-21h2-x64
1bin/64bit/...61.dll
windows10-2004-x64
1bin/64bit/...61.dll
windows11-21h2-x64
1Analysis
- max time kernel
149s - max time network
163s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/05/2026, 01:05
Static task
static1
Behavioral task
behavioral1
Sample
OBS-Studio-31.1.2-Windows-x64-Installer.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
OBS-Studio-31.1.2-Windows-x64-Installer.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$APPDATA/obs-studio-hook/graphics-hook32.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$APPDATA/obs-studio-hook/graphics-hook32.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
$APPDATA/obs-studio-hook/graphics-hook64.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
$APPDATA/obs-studio-hook/graphics-hook64.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/OBSInstallerUtils.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/OBSInstallerUtils.dll
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/VC_redist.x64.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/VC_redist.x64.exe
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/check_for_64bit_visual_studio_2022_runtimes.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/check_for_64bit_visual_studio_2022_runtimes.exe
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
bin/64bit/Qt6Core.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
bin/64bit/Qt6Core.dll
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
bin/64bit/Qt6Gui.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
bin/64bit/Qt6Gui.dll
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
bin/64bit/Qt6Network.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
bin/64bit/Qt6Network.dll
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
bin/64bit/Qt6Svg.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
bin/64bit/Qt6Svg.dll
Resource
win11-20260130-en
Behavioral task
behavioral25
Sample
bin/64bit/Qt6Widgets.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral26
Sample
bin/64bit/Qt6Widgets.dll
Resource
win11-20260130-en
Behavioral task
behavioral27
Sample
bin/64bit/Qt6Xml.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral28
Sample
bin/64bit/Qt6Xml.dll
Resource
win11-20260130-en
Behavioral task
behavioral29
Sample
bin/64bit/avcodec-61.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral30
Sample
bin/64bit/avcodec-61.dll
Resource
win11-20260130-en
Behavioral task
behavioral31
Sample
bin/64bit/avdevice-61.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral32
Sample
bin/64bit/avdevice-61.dll
Resource
win11-20260130-en
General
- Target $PLUGINSDIR/VC_redist.x64.exe
- Size 24.2MB
- Sample260504-bfzb2aew4p
- SHA256 3642e3f95d50cc193e4b5a0b0ffbf7fe2c08801517758b4c8aeb7105a091208a
- MD5 1d545507009cc4ec7409c1bc6e93b17b
- SHA1 84c61fadf8cd38016fb7632969b3ace9e54b763a
- SHA512 5935b69f5138ac3fbc33813c74da853269ba079f910936aefa95e230c6092b92f6225bffb594e5dd35ff29bf260e4b35f91adede90fdf5f062030d8666fd0104
- SSDEEP 786432:tSp+Ty2SfUfnbDDko5dFMYqlQbgAVLSElbmucMuZZxs6Sf:4p+Ty2SfWnHDk8FjVbfzPTq4
- TLSH T19F4733339648042AEBE34573AD99F5241D38A52C63024DF6EAECDD5E177829237FB702
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Executes dropped EXE 1 IoCs
pid Process 5400 VC_redist.x64.exe - Loads dropped DLL 1 IoCs
pid Process 5400 VC_redist.x64.exe - System Location Discovery: System Language Discovery 1 TTPs 2 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 VC_redist.x64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language VC_redist.x64.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4936 wrote to memory of 5400 4936 VC_redist.x64.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\VC_redist.x64.exe"C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\VC_redist.x64.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Windows\Temp\{F03DD881-666F-45B2-AEA9-59C88118F3C1}\.cr\VC_redist.x64.exe"C:\Windows\Temp\{F03DD881-666F-45B2-AEA9-59C88118F3C1}\.cr\VC_redist.x64.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\VC_redist.x64.exe" -burn.filehandle.attached=544 -burn.filehandle.self=5562⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:5400
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\Temp\{3F700085-2943-4937-A616-71DD61DEEC39}\.ba\logo.png
- Size 1KB
- SHA256 335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef
- MD5 d6bd210f227442b3362493d046cea233
- SHA1 ff286ac8370fc655aea0ef35e9cf0bfcb6d698de
- SHA512 464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b
- TLSH T1CF312CF34748B7A7D30581351471819AD242FFD8F9CE291E35CD5307664018115C75CF
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\Temp\{3F700085-2943-4937-A616-71DD61DEEC39}\.ba\wixstdba.dll
- Size 191KB
- SHA256 a4efbdb2ce55788ffe92a244cb775efd475526ef5b61ad78de2bcdfaddac7041
- MD5 eab9caf4277829abdf6223ec1efa0edd
- SHA1 74862ecf349a9bedd32699f2a7a4e00b4727543d
- SHA512 45b15ade68e0a90ea7300aeb6dca9bc9e347a63dba5ce72a635957564d1bdf0b1584a5e34191916498850fc7b3b7ecfbcbfcb246b39dbf59d47f66bc825c6fd2
- SSDEEP 3072:OXoiFK6b0k77I+QfaIl191rSJHvlalB+8BHkY6v53EfcUzN0m6I+WxBlnKzeZuqt:OXoQNb++gDrSJdr8BHkPh3wIgnK/IU1a
- TLSH T103149E11B5D0907AE7FB1A385938B5216D7FBA201B60C99E17589D6F2DF02C0AF35B23
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\Temp\{F03DD881-666F-45B2-AEA9-59C88118F3C1}\.cr\VC_redist.x64.exe
- Size 635KB
- SHA256 8cd998a0318f07a27f78b75edb19479f44273590e300629eff237d47643c496c
- MD5 ae0540106cfd901b091d3d241e5cb4b0
- SHA1 97f93b6e00a5069155a52aa5551e381b6b4221eb
- SHA512 29bb486bfdd541ba6aed7a2543ff0eb66865af737a8fb79484fb77cb412c3b357c71c16addf232c759d3c20c5e18128df43c68d1cba23f1c363fd9e0b7188177
- SSDEEP 12288:1nMwHskY7gjcjhVIEhqgM7bWvcsi6aV/LIysU40vy3W/ceKSHMsiFyY6XN:ZMysZgjS1hqgSC/izDfHjymk4HM5yJ
- TLSH T13CD49E3295614036E6F106B3B928E2347D7CE21827148DAEE3E8ED5D3EA849177F7247
- MD5 SHA1 SHA512 SSDEEP TLSH