Analysis

  • max time kernel
    140s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-11-2024 21:42

General

  • Target

    bk-fixed.exe

  • Size

    76KB

  • MD5

    9ba96801ef7763ec2cd3511780cd20b3

  • SHA1

    22225abd3ae38fbe758d549e574ceeda962e1e7c

  • SHA256

    46eb679dd45be1e09f1b0aaf6bbcff714808fed5c561b55214f962b664d4b925

  • SHA512

    12a0d54879740ea84ed1965dfd54042b9f1c1c3ea7acf458500c5ee44b674d950bc338c40b4bad1b22c45154f88b066bebb4fb32439f77a4e246b444b943158e

  • SSDEEP

    1536:fo3l2Rja/FuPlY932zcmncWZHAucvAlbgMF3WLc4gGiQOVkM95cT4gSR3:fwiAmnLFcvgbgMF0OVV5Z3

Score
10/10

Malware Config

Extracted

Family

xworm

C2

10.0.0.97:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bk-fixed.exe
    "C:\Users\Admin\AppData\Local\Temp\bk-fixed.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4880

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4880-0-0x00007FF878A33000-0x00007FF878A35000-memory.dmp

    Filesize

    8KB

  • memory/4880-1-0x0000000000790000-0x00000000007AA000-memory.dmp

    Filesize

    104KB

  • memory/4880-2-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4880-3-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

    Filesize

    10.8MB