Overview
overview
3Static
static
3BepInEx/co...ny.dll
windows7-x64
1BepInEx/co...20.dll
windows7-x64
1BepInEx/co...ny.dll
windows7-x64
1BepInEx/co...er.dll
windows7-x64
1BepInEx/co...Ex.dll
windows7-x64
1BepInEx/co...op.dll
windows7-x64
1BepInEx/co...db.dll
windows7-x64
1BepInEx/co...db.dll
windows7-x64
1BepInEx/co...ks.dll
windows7-x64
1BepInEx/co...il.dll
windows7-x64
1BepInEx/co...ur.dll
windows7-x64
1BepInEx/co...ls.dll
windows7-x64
1BepInEx/pa...on.dll
windows7-x64
1BepInEx/pa...er.dll
windows7-x64
1BepInEx/pa...er.dll
windows7-x64
1BepInEx/pa...ed.dll
windows7-x64
1BepInEx/pl...in.dll
windows7-x64
1BepInEx/pl...ee.dll
windows7-x64
1BepInEx/pl...in.dll
windows7-x64
1doorstop_l....dylib
windows7-x64
3doorstop_l...x64.so
windows7-x64
3doorstop_l....dylib
windows7-x64
3doorstop_l...x86.so
windows7-x64
3run_bepinex.sh
windows7-x64
3winhttp.dll
windows7-x64
1Analysis
-
max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
22-05-2024 03:18
Static task
static1
Behavioral task
behavioral1
Sample
BepInEx/core/0Harmony.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
BepInEx/core/0Harmony20.dll
Resource
win7-20240221-en
Behavioral task
behavioral3
Sample
BepInEx/core/BepInEx.Harmony.dll
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
BepInEx/core/BepInEx.Preloader.dll
Resource
win7-20240508-en
Behavioral task
behavioral5
Sample
BepInEx/core/BepInEx.dll
Resource
win7-20240220-en
Behavioral task
behavioral6
Sample
BepInEx/core/HarmonyXInterop.dll
Resource
win7-20240419-en
Behavioral task
behavioral7
Sample
BepInEx/core/Mono.Cecil.Mdb.dll
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
BepInEx/core/Mono.Cecil.Pdb.dll
Resource
win7-20240221-en
Behavioral task
behavioral9
Sample
BepInEx/core/Mono.Cecil.Rocks.dll
Resource
win7-20240220-en
Behavioral task
behavioral10
Sample
BepInEx/core/Mono.Cecil.dll
Resource
win7-20240215-en
Behavioral task
behavioral11
Sample
BepInEx/core/MonoMod.RuntimeDetour.dll
Resource
win7-20240419-en
Behavioral task
behavioral12
Sample
BepInEx/core/MonoMod.Utils.dll
Resource
win7-20240508-en
Behavioral task
behavioral13
Sample
BepInEx/patchers/Tobey/ConfigHandler/Tobey.Subnautica.ConfigHandler.Configuration.dll
Resource
win7-20240221-en
Behavioral task
behavioral14
Sample
BepInEx/patchers/Tobey/ConfigHandler/Tobey.Subnautica.ConfigHandler.Patcher.dll
Resource
win7-20240221-en
Behavioral task
behavioral15
Sample
BepInEx/patchers/Tobey/UnityAudio/Tobey.UnityAudio.Patcher.dll
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
BepInEx/patchers/Tobey/UnityAudio/Tobey.UnityAudio.Shared.dll
Resource
win7-20240508-en
Behavioral task
behavioral17
Sample
BepInEx/plugins/Tobey/ConfigHandler/Tobey.Subnautica.ConfigHandler.Plugin.dll
Resource
win7-20240221-en
Behavioral task
behavioral18
Sample
BepInEx/plugins/Tobey/File Tree/Tobey.FileTree.dll
Resource
win7-20240508-en
Behavioral task
behavioral19
Sample
BepInEx/plugins/Tobey/UnityAudio/Tobey.UnityAudio.Plugin.dll
Resource
win7-20240221-en
Behavioral task
behavioral20
Sample
doorstop_libs/libdoorstop_x64.dylib
Resource
win7-20240220-en
Behavioral task
behavioral21
Sample
doorstop_libs/libdoorstop_x64.so
Resource
win7-20240508-en
Behavioral task
behavioral22
Sample
doorstop_libs/libdoorstop_x86.dylib
Resource
win7-20240508-en
Behavioral task
behavioral23
Sample
doorstop_libs/libdoorstop_x86.so
Resource
win7-20240221-en
Behavioral task
behavioral24
Sample
run_bepinex.sh
Resource
win7-20240221-en
Behavioral task
behavioral25
Sample
winhttp.dll
Resource
win7-20231129-en
General
-
Target
doorstop_libs/libdoorstop_x86.dylib
-
Size
28KB
-
MD5
eab63a6d53b8a26e8d0e7f0e08f6bee5
-
SHA1
81f79b64fc5a59d5d9f77edf782c06f0745917f7
-
SHA256
7f0d1b00a8eb71f0746e9d2ecf3a18034662e0e5826ac7357ceb8d117ed14eff
-
SHA512
7f8448dea127743dae6f9eb86728a507b56ac6b9f637bc8a79620e7b3b5d404f348313cd627d32c989a3e942e3a37f3a97063e7c649faae27bd4258285130091
-
SSDEEP
768:o0K9hNC31Ne01HDzIY3xo8f6tPuYJ3CZRBazrX5qyXEl5KS/:q9hNC31Ne01HDzIY3xo46tP0hazTwyXa
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 9 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.dylib rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dylib_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dylib_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dylib_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dylib_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dylib_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.dylib\ = "dylib_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\dylib_auto_file\shell\Read rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
AcroRd32.exepid process 2812 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 2812 AcroRd32.exe 2812 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 2172 wrote to memory of 2916 2172 cmd.exe rundll32.exe PID 2172 wrote to memory of 2916 2172 cmd.exe rundll32.exe PID 2172 wrote to memory of 2916 2172 cmd.exe rundll32.exe PID 2916 wrote to memory of 2812 2916 rundll32.exe AcroRd32.exe PID 2916 wrote to memory of 2812 2916 rundll32.exe AcroRd32.exe PID 2916 wrote to memory of 2812 2916 rundll32.exe AcroRd32.exe PID 2916 wrote to memory of 2812 2916 rundll32.exe AcroRd32.exe
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\doorstop_libs\libdoorstop_x86.dylib1⤵
- Suspicious use of WriteProcessMemory
PID:2172 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\doorstop_libs\libdoorstop_x86.dylib2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\doorstop_libs\libdoorstop_x86.dylib"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2812
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD5fcdd39eafff8594f95e6fa2f20f9b742
SHA1cfef3ba03be326922886f23c788cab3bddfa3667
SHA256b7041b572c8c551d2924b5d6a0457f32208603a0ef75d46abf8ac4ff448cceed
SHA512d4df79e1b3727ae179a3a126db56e0bf5a49004e09ab291a9b320a163575fa0b6685d69660a6cd82bccfcd23e1b5333074f52b51bbd872c91aaa424f5045331a