Overview
overview
8Static
static
3WorkshopDo...er.zip
windows10-2004-x64
3WorkshopDo...er.zip
windows11-ltsc_2024-x64
8DepotDownl...s.json
windows10-2004-x64
3DepotDownl...s.json
windows11-ltsc_2024-x64
8DepotDownl...od.exe
windows10-2004-x64
1DepotDownl...od.exe
windows11-ltsc_2024-x64
8DepotDownl...od.exe
windows10-2004-x64
1DepotDownl...od.exe
windows11-ltsc_2024-x64
1DepotDownl...od.pdb
windows10-2004-x64
3DepotDownl...od.pdb
windows11-ltsc_2024-x64
8DepotDownl...g.json
windows10-2004-x64
3DepotDownl...g.json
windows11-ltsc_2024-x64
3DepotDownl...ICENSE
windows10-2004-x64
3DepotDownl...ICENSE
windows11-ltsc_2024-x64
3DepotDownl...er.dll
windows10-2004-x64
1DepotDownl...er.dll
windows11-ltsc_2024-x64
1DepotDownl...t2.dll
windows10-2004-x64
1DepotDownl...t2.dll
windows11-ltsc_2024-x64
1DepotDownl...ng.dll
windows10-2004-x64
1DepotDownl...ng.dll
windows11-ltsc_2024-x64
1DepotDownl...rp.dll
windows10-2004-x64
1DepotDownl...rp.dll
windows11-ltsc_2024-x64
8DepotDownl...on.cfg
windows10-2004-x64
3DepotDownl...on.cfg
windows11-ltsc_2024-x64
3DepotDownl...re.dll
windows10-2004-x64
1DepotDownl...re.dll
windows11-ltsc_2024-x64
1DepotDownl...et.dll
windows10-2004-x64
1DepotDownl...et.dll
windows11-ltsc_2024-x64
1WorkshopDo...ro.exe
windows10-2004-x64
7WorkshopDo...ro.exe
windows11-ltsc_2024-x64
7SteamWorkS...py.pyc
windows10-2004-x64
3SteamWorkS...py.pyc
windows11-ltsc_2024-x64
8Analysis
- max time kernel
598s - max time network
454s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/09/2026, 05:02
Behavioral task
behavioral1
Sample
WorkshopDownloader.zip
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
WorkshopDownloader.zip
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral3
Sample
DepotDownloaderMod/DepotDownloaderMod.deps.json
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
DepotDownloaderMod/DepotDownloaderMod.deps.json
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral5
Sample
DepotDownloaderMod/DepotDownloaderMod.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
DepotDownloaderMod/DepotDownloaderMod.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral7
Sample
DepotDownloaderMod/DepotDownloaderMod.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
DepotDownloaderMod/DepotDownloaderMod.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral9
Sample
DepotDownloaderMod/DepotDownloaderMod.pdb
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
DepotDownloaderMod/DepotDownloaderMod.pdb
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral11
Sample
DepotDownloaderMod/DepotDownloaderMod.runtimeconfig.json
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
DepotDownloaderMod/DepotDownloaderMod.runtimeconfig.json
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral13
Sample
DepotDownloaderMod/LICENSE
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
DepotDownloaderMod/LICENSE
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral15
Sample
DepotDownloaderMod/QRCoder.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
DepotDownloaderMod/QRCoder.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral17
Sample
DepotDownloaderMod/SteamKit2.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral18
Sample
DepotDownloaderMod/SteamKit2.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral19
Sample
DepotDownloaderMod/System.IO.Hashing.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral20
Sample
DepotDownloaderMod/System.IO.Hashing.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral21
Sample
DepotDownloaderMod/ZstdSharp.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral22
Sample
DepotDownloaderMod/ZstdSharp.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral23
Sample
DepotDownloaderMod/lastsavelocation.cfg
Resource
win10v2004-20260513-en
Behavioral task
behavioral24
Sample
DepotDownloaderMod/lastsavelocation.cfg
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral25
Sample
DepotDownloaderMod/protobuf-net.Core.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral26
Sample
DepotDownloaderMod/protobuf-net.Core.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral27
Sample
DepotDownloaderMod/protobuf-net.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral28
Sample
DepotDownloaderMod/protobuf-net.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral29
Sample
WorkshopDownloader_Pro.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral30
Sample
WorkshopDownloader_Pro.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral31
Sample
SteamWorkShopDownloaderpy.pyc
Resource
win10v2004-20260513-en
Behavioral task
behavioral32
Sample
SteamWorkShopDownloaderpy.pyc
Resource
win11ltsc2024-20260709-en
General
- Target DepotDownloaderMod/lastsavelocation.cfg
- Size 70B
- Sample260908-fn72cssbpc
- SHA256 49c331fc005c4ac8dcf500240ca92c4ae44fff0dadbf253a0c0c34f152697e0f
- MD5 a11dd3451f73181d1ffda60ae72dcbd1
- SHA1 68ad47474b0f66cd1e8a3c0e245e6c9d127548a6
- SHA512 ba066d7c12ef7474e1cce1535bb54711bd1daf3c3aa21f2194b709e85fa74c8dccee6391cf9d4ad5ebf07ef6c34905609aa2a03b294dff1d65fcd5b76557c4dd
- TLSH T130A022AE0A838882AAA03E20C23C08030CA0300320A8A20020F0AE8E8B0C03830E023B
- MD5 SHA1 SHA512 TLSH
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 1936 cmd.exe - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings cmd.exe Key created \REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings OpenWith.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2700 OpenWith.exe
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\DepotDownloaderMod\lastsavelocation.cfg1⤵
- Executes a command shell one-liner
- Modifies registry class
PID:1936
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2700