Analysis

  • max time kernel
    119s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220722-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/08/2022, 10:33

General

  • Target
    ccb00726db19c3c19f4d2747fdc43b1a1bb6ed8d902ed9c45caf5fae7ad0de55.exe
  • Size 508KB
  • Sample220804-mljdjsfaak
  • SHA256 ccb00726db19c3c19f4d2747fdc43b1a1bb6ed8d902ed9c45caf5fae7ad0de55
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ccb00726db19c3c19f4d2747fdc43b1a1bb6ed8d902ed9c45caf5fae7ad0de55.exe
    "C:\Users\Admin\AppData\Local\Temp\ccb00726db19c3c19f4d2747fdc43b1a1bb6ed8d902ed9c45caf5fae7ad0de55.exe"
    1⤵
    • Loads dropped DLL
    PID:4336

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsn59BA.tmp\System.dll
        • Size 12KB
        • SHA256 c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
        • MD5 SHA1 SHA512 SSDEEP

        memory/4336-136-0x0000000002A60000-0x0000000002B77000-memory.dmp

        memory/4336-137-0x0000000002A60000-0x0000000002B77000-memory.dmp