Analysis
- max time kernel
92s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20250129-en - resource tags
- submitted
01/02/2025, 15:54
General
- Target dcf95c94c1f8bf06dc0e56d32075ec4b.exe
- Size 1.8MB
- Sample250201-tcdv2a1mdk
- SHA256 5ddd2c06abc94aef41bbc697dd5bb4ca88bd013499067f082abc4a1c975f0796
Malware Config
Extracted
-
lumma
-
https://toppyneedus.biz/api
Signatures
- Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
- Lumma family
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dcf95c94c1f8bf06dc0e56d32075ec4b.exe"C:\Users\Admin\AppData\Local\Temp\dcf95c94c1f8bf06dc0e56d32075ec4b.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4156-0-0x0000000000460000-0x00000000008FA000-memory.dmp
memory/4156-1-0x0000000077E04000-0x0000000077E06000-memory.dmp
memory/4156-2-0x0000000000461000-0x000000000048A000-memory.dmp
memory/4156-3-0x0000000000460000-0x00000000008FA000-memory.dmp
memory/4156-4-0x0000000000460000-0x00000000008FA000-memory.dmp
memory/4156-5-0x0000000000460000-0x00000000008FA000-memory.dmp
memory/4156-6-0x0000000000460000-0x00000000008FA000-memory.dmp