Analysis
-
max time kernel
15s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
-
submitted
30-06-2024 18:05
General
-
Target
Nexus/VST/Nexus3.4.4.dll
-
Size
8.5MB
-
MD5
3f5d64b7e6bf4d6f9cebe8a180ba3c2b
-
SHA1
3f7d18309274daf0a39c501c71d18c1229496721
-
SHA256
88961cd14b71041a5139dd58a263d00addb91b96f53db51fb57ff30bb2b46c75
-
SHA512
bf95fafb6f5c9330b0c3491541796710961ddb9b72a9c8458ddf2076b089c3e9a6bf24daeb348274a3109cef4aab21a1f13d95f1f66c7e3ffd2cd10c5e96701a
-
SSDEEP
196608:De3Bhdgk7cBITaNXhmJGIMYga5EoiKEyQB6/jeXXl+raZgUt:DeXd1cI6XhmJWYgatTEyGXo
Score
7/10
Malware Config
Signatures
-
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
-
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Nexus\VST\Nexus3.4.4.dll,#11⤵
- Checks BIOS information in registry
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2020 -s 3402⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/2020-1-0x000007FEF4A80000-0x000007FEF5F81000-memory.dmpFilesize
21.0MB
-
memory/2020-2-0x000007FEF3570000-0x000007FEF4A71000-memory.dmpFilesize
21.0MB
-
memory/2020-3-0x000007FEF4A80000-0x000007FEF5F81000-memory.dmpFilesize
21.0MB
-
memory/2020-4-0x0000000000180000-0x0000000000185000-memory.dmpFilesize
20KB
-
memory/2020-5-0x000007FEF3570000-0x000007FEF4A71000-memory.dmpFilesize
21.0MB