Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - submitted
03/12/2024, 17:39
General
- Target file.exe
- Size 4.3MB
- Sample241203-v79rmawkbx
- SHA256 8ea91e731e0fce74fb28eda1544450236d309cce994e7b83f4c4ded006b6d5a4
Malware Config
Extracted
-
cryptbot
Signatures
- CryptBot
CryptBot is a C++ stealer distributed widely in bundle with other software.
- Cryptbot family
- Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
- 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.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 10 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Enumerates VirtualBox registry keys
- 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/2984-0-0x00000000007A0000-0x0000000001479000-memory.dmp
memory/2984-1-0x0000000077B34000-0x0000000077B36000-memory.dmp
memory/2984-2-0x00000000007A1000-0x0000000000A25000-memory.dmp
memory/2984-3-0x00000000007A0000-0x0000000001479000-memory.dmp
memory/2984-4-0x00000000007A0000-0x0000000001479000-memory.dmp
memory/2984-5-0x00000000007A0000-0x0000000001479000-memory.dmp
memory/2984-6-0x00000000007A0000-0x0000000001479000-memory.dmp
memory/2984-7-0x00000000007A0000-0x0000000001479000-memory.dmp
memory/2984-8-0x00000000007A0000-0x0000000001479000-memory.dmp
memory/2984-9-0x00000000007A0000-0x0000000001479000-memory.dmp
memory/2984-11-0x00000000007A0000-0x0000000001479000-memory.dmp