Analysis
- max time kernel
149s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
12/09/2026, 14:25
General
- Target PrysMax v2.0/BuilderV2.exe
- Size 7.9MB
- Sample260912-rrmelsdb69
- SHA256 8202e43c0bb77a0f1ca920f2ddd4728e731dad431a16f4d15202fcce1c753be8
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.
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 40 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 20 IoCs
Detects Themida, an advanced Windows software protection system.
- Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Looks up external IP address via web service 1 TTPs 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PrysMax v2.0\BuilderV2.exe"C:\Users\Admin\AppData\Local\Temp\PrysMax v2.0\BuilderV2.exe"1⤵
- Creates a file in the Startup directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exe"cmd" /C "powershell -NoProfile -ExecutionPolicy Bypass -EncodedCommand QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABTAHQAbwByAGUAIAAtAEYAbwByAGMAZQAgAD4AJABuAHUAbABsACAAMgA+ACYAMQA="2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -NoProfile -ExecutionPolicy Bypass -EncodedCommand QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABTAHQAbwByAGUAIAAtAEYAbwByAGMAZQAgAD4AJABuAHUAbABsACAAMgA+ACYAMQA=3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Store\YADHelper\code8.exe"C:\Users\Admin\AppData\Local\Store\YADHelper\code8.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Obfuscated Files or Information
1Command Obfuscation
1Virtualization/Sandbox Evasion
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
3Credentials In Files
3Replay Monitor
Loading Replay Monitor...
Downloads
_raw_ctr.pyd
pywintypes38.dll
_Salsa20.pyd
_raw_aes.pyd
_raw_aesni.pyd
_raw_cbc.pyd
_raw_cfb.pyd
_raw_ecb.pyd
_raw_ocb.pyd
_raw_ofb.pyd
_BLAKE2s.pyd
_MD5.pyd
_SHA1.pyd
_SHA256.pyd
_ghash_clmul.pyd
_ghash_portable.pyd
_scrypt.pyd
_cpuid_c.pyd
_strxor.pyd
VCRUNTIME140.dll
_bz2.pyd
_cffi_backend.pyd
_ctypes.pyd
_lzma.pyd
_socket.pyd
code8.exe
libffi-7.dll
_psutil_windows.pyd
python3.dll
python38.dll
select.pyd
win32crypt.pyd
__PSScriptPolicyTest_knqauhg0.2vi.ps1
memory/548-11-0x000001B0522E0000-0x000001B0524FC000-memory.dmp
memory/548-0-0x000001B039BF0000-0x000001B039C00000-memory.dmp
memory/548-8-0x000001B052600000-0x000001B052622000-memory.dmp
memory/3084-135-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-137-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-70-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-69-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-72-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-133-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-134-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-73-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-136-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-71-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-139-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-140-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-141-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-142-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-143-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-144-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-145-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-146-0x0000000140000000-0x0000000141ABC000-memory.dmp
memory/3084-147-0x0000000140000000-0x0000000141ABC000-memory.dmp