Analysis
- max time kernel
159s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
23/02/2022, 12:56
General
- Target PRAVDA.exe
- Size 4.7MB
- Sample220223-p6cslsbebl
- SHA256 437f639d05da27e1909877e3f8c39f70ee5d525a8be7c631e69f4141db287ab6
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Themida packer 5 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PRAVDA.exe"C:\Users\Admin\AppData\Local\Temp\PRAVDA.exe"1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\Aurora2⤵
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1984-130-0x00007FFE854BB000-0x00007FFE854BC000-memory.dmp
memory/1984-131-0x00007FFE85204000-0x00007FFE85205000-memory.dmp
memory/1984-132-0x00007FFE85204000-0x00007FFE85205000-memory.dmp
memory/1984-133-0x00007FFE80000000-0x00007FFE80002000-memory.dmp
memory/1984-136-0x00007FFE874F0000-0x00007FFE874F2000-memory.dmp
memory/1984-134-0x00007FFE80030000-0x00007FFE80031000-memory.dmp
memory/1984-135-0x00007FF629F90000-0x00007FF62AB95000-memory.dmp
memory/1984-137-0x00007FF629F90000-0x00007FF62AB95000-memory.dmp
memory/1984-138-0x00007FF629F90000-0x00007FF62AB95000-memory.dmp
memory/1984-139-0x00007FF629FCE000-0x00007FF629FD0000-memory.dmp
memory/1984-140-0x00007FF629F90000-0x00007FF62AB95000-memory.dmp
memory/1984-141-0x00007FF629F90000-0x00007FF62AB95000-memory.dmp
memory/1984-142-0x000001EBB8873000-0x000001EBB8875000-memory.dmp
memory/1984-143-0x000001EBB8440000-0x000001EBB8442000-memory.dmp
memory/1984-145-0x000001EBB8444000-0x000001EBB8445000-memory.dmp
memory/1984-144-0x000001EBB8442000-0x000001EBB8444000-memory.dmp