Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    26-05-2024 08:08

General

  • Target

    XClient.exe

  • Size

    62KB

  • MD5

    37fdd03f70527399a99b19c77dfafed1

  • SHA1

    3b70e9c942883d8bec7042764ec0edfa62414906

  • SHA256

    7b45e50061c5a05b74970e33573d2e22560a709e52959f9d6e0024b281f02fcf

  • SHA512

    a353d4420d1706a1742089d806188fba79131a5d0b720ad7716bc1995cbf75b6d379034dee7dd18baa5bbd99148a21baa5787d4ada18a162b36a740643f36908

  • SSDEEP

    1536:8UNsj0iOo4E9n7QBJuePnkbGdqLJe0GGqFOlqjuC:XNsjf4K8LnkbG8L4FOEjf

Score
10/10

Malware Config

Extracted

Family

xworm

C2

0.tcp.eu.ngrok.io:13656

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Drops startup file 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Drops startup file
    • Suspicious use of AdjustPrivilegeToken
    PID:600
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1312

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/600-0-0x0000000000440000-0x0000000000456000-memory.dmp

      Filesize

      88KB

    • memory/600-1-0x00007FFA2ACB3000-0x00007FFA2ACB4000-memory.dmp

      Filesize

      4KB

    • memory/600-6-0x00007FFA2ACB0000-0x00007FFA2B69C000-memory.dmp

      Filesize

      9.9MB

    • memory/600-7-0x00007FFA2ACB3000-0x00007FFA2ACB4000-memory.dmp

      Filesize

      4KB

    • memory/600-8-0x00007FFA2ACB0000-0x00007FFA2B69C000-memory.dmp

      Filesize

      9.9MB