Analysis
- max time kernel
121s - max time network
122s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
27/12/2024, 07:37
General
- Target 8cb60f5681c5a681f60da6e2d7e589c0.exe
- Size 1.8MB
- Sample241227-jfvb3stjfl
- SHA256 6d5ad03df2eeaa1aa6b67612c564e84ce25ee20972d4060154c2587f2ae06e2f
Malware Config
Extracted
-
lumma
-
https://hummskitnj.buzz/api
-
https://cashfuzysao.buzz/api
-
https://appliacnesot.buzz/api
-
https://screwamusresz.buzz/api
-
https://inherineau.buzz/api
-
https://scentniej.buzz/api
-
https://rebuildeso.buzz/api
-
https://prisonyfork.buzz/api
-
https://mindhandru.buzz/api
Extracted
-
lumma
-
https://mindhandru.buzz/api
-
https://prisonyfork.buzz/api
-
https://rebuildeso.buzz/api
-
https://inherineau.buzz/api
-
https://appliacnesot.buzz/api
-
https://cashfuzysao.buzz/api
-
https://hummskitnj.buzz/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.
- Modifies system certificate store 2 TTPs 3 IoCs
- Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8cb60f5681c5a681f60da6e2d7e589c0.exe"C:\Users\Admin\AppData\Local\Temp\8cb60f5681c5a681f60da6e2d7e589c0.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
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Modify Registry
1Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
2Replay Monitor
Loading Replay Monitor...
Downloads
CabFCC8.tmp
TarFCEA.tmp
memory/3052-10-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-11-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-4-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-5-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-6-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-7-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-8-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-9-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-0-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-3-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-12-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-13-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-14-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-15-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-2-0x0000000000841000-0x0000000000868000-memory.dmp
memory/3052-1-0x0000000077D20000-0x0000000077D22000-memory.dmp
memory/3052-50-0x0000000000840000-0x0000000000CDD000-memory.dmp
memory/3052-51-0x0000000000840000-0x0000000000CDD000-memory.dmp