Analysis
- max time kernel
152s - max time network
150s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
05/01/2022, 08:19
General
- Target 975feaa8efd0fd8c5710652abc197e2c.exe
- Size 2.6MB
- Sample220105-j7vrxsaden
- SHA256 7ebd75f04be7424a2c2faa8be74538af662198fcd6c88bbeb4c99df4991ac06d
Malware Config
Extracted
-
cryptbot
-
zyobyd22.top
-
moreja02.top
-
payload_url
http://yaphsq02.top/download.php?file=cantey.exe
Signatures
- CryptBot
A C++ stealer distributed widely in bundle with other software.
- 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 4 IoCs
Detects Themida, an advanced Windows software protection system.
- 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\975feaa8efd0fd8c5710652abc197e2c.exe"C:\Users\Admin\AppData\Local\Temp\975feaa8efd0fd8c5710652abc197e2c.exe"1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2340-115-0x0000000000D10000-0x00000000013F3000-memory.dmp
memory/2340-116-0x0000000000D10000-0x00000000013F3000-memory.dmp
memory/2340-117-0x0000000000D10000-0x00000000013F3000-memory.dmp
memory/2340-118-0x0000000077300000-0x000000007748E000-memory.dmp
memory/2340-119-0x0000000000D10000-0x00000000013F3000-memory.dmp