Analysis
- max time kernel
147s - max time network
125s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
20/12/2024, 03:35
General
- Target 1028/VisualStudioSetup.exe
- Size 4.2MB
- Sample241220-d5ttysyjes
- SHA256 d448c1792d67d14755dcfab8922e6f5a4d1caf4ff9b66545e85181c03b8d1f39
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 26 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\1028\VisualStudioSetup.exe"C:\Users\Admin\AppData\Local\Temp\1028\VisualStudioSetup.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\8c690136a33c50e1ce478b3c19\vs_bootstrapper_d15\vs_setup_bootstrapper.exe"C:\Users\Admin\AppData\Local\Temp\8c690136a33c50e1ce478b3c19\vs_bootstrapper_d15\vs_setup_bootstrapper.exe" --env "_SFX_CAB_EXE_PACKAGE:C:\Users\Admin\AppData\Local\Temp\1028\VisualStudioSetup.exe _SFX_CAB_EXE_ORIGINALWORKINGDIR:C:\Users\Admin\AppData\Local\Temp\1028"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\getmac.exe"getmac"3⤵
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
20241220033835_3c130150fa314cce97565320e902a80d.trn
Microsoft.C2RSignatureReader.Native.dll
Microsoft.VisualStudio.Setup.Common.dll
Microsoft.VisualStudio.Setup.dll
Microsoft.VisualStudio.Telemetry.dll
Microsoft.VisualStudio.Utilities.Internal.dll
Newtonsoft.Json.dll
System.Memory.dll
detection.json
vs_setup_bootstrapper.config
vs_setup_bootstrapper.exe.config
vs_setup_bootstrapper.json
Microsoft.C2RSignatureReader.Interop.dll
Microsoft.VisualStudio.RemoteControl.dll
Microsoft.VisualStudio.Setup.Download.dll
System.Runtime.CompilerServices.Unsafe.dll
vs_setup_bootstrapper.exe
memory/2504-124-0x0000000004B70000-0x0000000004C6C000-memory.dmp
memory/2504-120-0x0000000004AD0000-0x0000000004B64000-memory.dmp
memory/2504-136-0x0000000005610000-0x00000000056C2000-memory.dmp
memory/2504-147-0x0000000002220000-0x0000000002246000-memory.dmp
memory/2504-151-0x00000000020F0000-0x00000000020F8000-memory.dmp
memory/2504-139-0x0000000074630000-0x0000000074D1E000-memory.dmp
memory/2504-157-0x00000000042D0000-0x00000000042E0000-memory.dmp
memory/2504-132-0x0000000000640000-0x0000000000690000-memory.dmp
memory/2504-128-0x0000000000590000-0x0000000000598000-memory.dmp
memory/2504-143-0x0000000002200000-0x0000000002214000-memory.dmp
memory/2504-116-0x0000000004960000-0x0000000004ACA000-memory.dmp
memory/2504-166-0x0000000004840000-0x000000000484A000-memory.dmp
memory/2504-165-0x0000000004840000-0x000000000484A000-memory.dmp
memory/2504-112-0x0000000000C80000-0x0000000000CE8000-memory.dmp
memory/2504-169-0x000000007463E000-0x000000007463F000-memory.dmp
memory/2504-170-0x0000000074630000-0x0000000074D1E000-memory.dmp
memory/2504-171-0x0000000004840000-0x000000000484A000-memory.dmp
memory/2504-172-0x0000000004840000-0x000000000484A000-memory.dmp
memory/2504-110-0x000000007463E000-0x000000007463F000-memory.dmp