Analysis

  • max time kernel
    13s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2024, 21:02

General

  • Target

    JaffaCakes118_36ad25dda15ea5a29b5aa738f1e60bd9.exe

  • Size

    415KB

  • MD5

    36ad25dda15ea5a29b5aa738f1e60bd9

  • SHA1

    aaa36d292fb1a899116506006ccb2b207fda8a79

  • SHA256

    a13eacd014b6b5032f0b2e0c18bf380f4f371b181e750e7d421870cb6c59aeff

  • SHA512

    70290d735975d71dd9c2bdb01e2805efcb5f7cab81045d201ac1c00a165a8765d508719f0531f2a65ed545f7849997598d1ae455c385d07e6e109f725873b249

  • SSDEEP

    12288:UPSzFKiNNuutzGGP9kYSy1wYJd3d8WPEkLS3C:UPS02ntyS9kI1r8WPE

Malware Config

Extracted

Family

cryptbot

C2

cemnba72.top

morvuy07.top

Attributes
  • payload_url

    http://bojpyv10.top/download.php?file=lv.exe

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Cryptbot family
  • Deletes itself 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36ad25dda15ea5a29b5aa738f1e60bd9.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36ad25dda15ea5a29b5aa738f1e60bd9.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2596
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\YNPbrkhBOaPG & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_36ad25dda15ea5a29b5aa738f1e60bd9.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1480
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2980

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2596-1-0x0000000000870000-0x0000000000970000-memory.dmp

          Filesize

          1024KB

        • memory/2596-3-0x0000000000400000-0x0000000000448000-memory.dmp

          Filesize

          288KB

        • memory/2596-2-0x0000000000230000-0x0000000000275000-memory.dmp

          Filesize

          276KB

        • memory/2596-6-0x0000000000230000-0x0000000000275000-memory.dmp

          Filesize

          276KB

        • memory/2596-5-0x0000000000400000-0x0000000000448000-memory.dmp

          Filesize

          288KB

        • memory/2596-4-0x0000000000400000-0x0000000000799000-memory.dmp

          Filesize

          3.6MB