Analysis

  • max time kernel
    149s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 18:28

General

  • Target
    b9603bc9734cc8f5a19cea4c717970ab.exe
  • Size 602KB
  • Sample240307-w4fj2sbd4x
  • SHA256 ee868c21339f7b0d6c1fcbe27769b583d3a17b11dc5f39862defef456a4a8df5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cryptbot

C2
  • lysvay12.top

  • moroer01.top

Attributes
  • payload_url

    http://damuxa01.top/download.php?file=lv.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot payload 4 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of FindShellTrayWindow 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9603bc9734cc8f5a19cea4c717970ab.exe
    "C:\Users\Admin\AppData\Local\Temp\b9603bc9734cc8f5a19cea4c717970ab.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of FindShellTrayWindow
    PID:4528

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        8u7VP1jjVJ6G.zip

        • Path C:\Users\Admin\AppData\Local\Temp\uguVKekBg21\8u7VP1jjVJ6G.zip
        • Size 38KB
        • SHA256 41057187bd8d75c784f71c20d2b47c84f181610732386ad9a5c578e9853812c4
        • MD5 SHA1 SHA512 SSDEEP

        _Information.txt

        • Path C:\Users\Admin\AppData\Local\Temp\uguVKekBg21\_Files\_Information.txt
        • Size 7KB
        • SHA256 2d9334731bf7be88c768eb2f806ba43a4e689b42c4ee696a6200176dc0932fa2
        • MD5 SHA1 SHA512 SSDEEP

        _Screen_Desktop.jpeg

        • Path C:\Users\Admin\AppData\Local\Temp\uguVKekBg21\_Files\_Screen_Desktop.jpeg
        • Size 44KB
        • SHA256 7ec05a98ff3d555d74dc48c555575f610732158793ca86c450b1f5e901b836f8
        • MD5 SHA1 SHA512 SSDEEP

        system_info.txt

        • Path C:\Users\Admin\AppData\Local\Temp\uguVKekBg21\files_\system_info.txt
        • Size 7KB
        • SHA256 71043208acf18015649210e8e1c4d53689d518b9df05eb790873cb332e7a4cc8
        • MD5 SHA1 SHA512 SSDEEP

        system_info.txt

        • Path C:\Users\Admin\AppData\Local\Temp\uguVKekBg21\files_\system_info.txt
        • Size 6KB
        • SHA256 766b9dcd23dd6cd13a36345a2060e81a911ca3496d2b975c9f712f2edcbb8de2
        • MD5 SHA1 SHA512 SSDEEP

        system_info.txt

        • Path C:\Users\Admin\AppData\Local\Temp\uguVKekBg21\files_\system_info.txt
        • Size 7KB
        • SHA256 a03bd4ffa71722faebfe531b25ad6ccc3dcddc3dbf61d2103b461095136e9de0
        • MD5 SHA1 SHA512 SSDEEP

        fwoVgLEtbgUVtA.zip

        • Path C:\Users\Admin\AppData\Local\Temp\uguVKekBg21\fwoVgLEtbgUVtA.zip
        • Size 38KB
        • SHA256 212397b49b215e8eb61ccaf465c7aa92e5236fd42393f66097bdb31f9f9f3785
        • MD5 SHA1 SHA512 SSDEEP

        memory/4528-1-0x0000000002EC0000-0x0000000002FC0000-memory.dmp

        memory/4528-3-0x0000000000400000-0x0000000002CCC000-memory.dmp

        memory/4528-207-0x0000000000400000-0x0000000002CCC000-memory.dmp

        memory/4528-209-0x0000000002EC0000-0x0000000002FC0000-memory.dmp

        memory/4528-212-0x0000000004A60000-0x0000000004B00000-memory.dmp

        memory/4528-2-0x0000000004A60000-0x0000000004B00000-memory.dmp