Analysis
- max time kernel
150s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
13/10/2022, 17:14
General
- Target file.exe
- Size 4.5MB
- Sample221013-vrzaysefc2
- SHA256 efd564a5621a68bfe0db7d2acb4842994c5cd889d095e68f80e11fb43be26af6
Malware Config
Signatures
- 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1584-132-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1584-133-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1584-136-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1584-137-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1584-138-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1584-139-0x0000000077B60000-0x0000000077D03000-memory.dmp
memory/1584-140-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1584-141-0x00000000054F0000-0x0000000005A94000-memory.dmp
memory/1584-142-0x0000000005410000-0x00000000054A2000-memory.dmp
memory/1584-143-0x0000000005BF0000-0x0000000006208000-memory.dmp
memory/1584-144-0x00000000062B0000-0x00000000063BA000-memory.dmp
memory/1584-145-0x00000000063E0000-0x00000000063F2000-memory.dmp
memory/1584-146-0x0000000006400000-0x000000000643C000-memory.dmp
memory/1584-147-0x0000000077B60000-0x0000000077D03000-memory.dmp
memory/1584-148-0x0000000000D80000-0x0000000000DE6000-memory.dmp
memory/1584-149-0x00000000075B0000-0x0000000007772000-memory.dmp
memory/1584-150-0x0000000007790000-0x0000000007CBC000-memory.dmp
memory/1584-151-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1584-152-0x0000000077B60000-0x0000000077D03000-memory.dmp