Analysis

  • max time kernel
    554s
  • max time network
    557s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09-04-2024 15:57

General

  • Target

    JoltBeacon.dll

  • Size

    170KB

  • MD5

    6a6c11510e1743835c938eb1135d5f8f

  • SHA1

    cab05283c7458cb74499772525f1eeb174ae2daa

  • SHA256

    89e7621123c613d82aadfe6defded7f2816a7add36a7ef1576c08206c84fc90d

  • SHA512

    149c6f5bcf6b05c40e1c040d89586b6d992bbc7c3c23ca24292caa064531f373dee1243249f803fd20abfe53621ec7816d4fdb097cc2ee63bbca209cc993ccd5

  • SSDEEP

    3072:WGDjIrSZFEhB2oMk3pXO+4ao8eB4JP5/xemoyUuziq7:WYj3KhWmODB4//xloyUuuq

Score
10/10

Malware Config

Signatures

  • Zloader, Terdot, DELoader, ZeusSphinx

    Zloader is a malware strain that was initially discovered back in August 2015.

  • Blocklisted process makes network request 36 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JoltBeacon.dll,#1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4240
    • C:\Windows\System32\msiexec.exe
      \??\C:\Windows\System32\msiexec.exe
      2⤵
      • Blocklisted process makes network request
      PID:4084

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\CT02THQH\post[1].php

    Filesize

    3B

    MD5

    8a80554c91d9fca8acb82f023de02f11

    SHA1

    5f36b2ea290645ee34d943220a14b54ee5ea5be5

    SHA256

    ca3d163bab055381827226140568f3bef7eaac187cebd76878e0b63e9e442356

    SHA512

    ca4b6defb8adcc010050bc8b1bb8f8092c4928b8a0fba32146abcfb256e4d91672f88ca2cdf6210e754e5b8ac5e23fb023806ccd749ac8b701f79a691f03c87a

  • memory/4084-10-0x0000017FF3220000-0x0000017FF3260000-memory.dmp

    Filesize

    256KB

  • memory/4084-12-0x0000017FF3220000-0x0000017FF3260000-memory.dmp

    Filesize

    256KB

  • memory/4084-17-0x0000017FF56A0000-0x0000017FF58A9000-memory.dmp

    Filesize

    2.0MB

  • memory/4084-30-0x0000017FF3220000-0x0000017FF3260000-memory.dmp

    Filesize

    256KB

  • memory/4084-33-0x0000017FF3220000-0x0000017FF3260000-memory.dmp

    Filesize

    256KB

  • memory/4084-100-0x0000017FF3220000-0x0000017FF3260000-memory.dmp

    Filesize

    256KB

  • memory/4084-103-0x0000017FF3220000-0x0000017FF3260000-memory.dmp

    Filesize

    256KB

  • memory/4240-0-0x00000150AE420000-0x00000150AE629000-memory.dmp

    Filesize

    2.0MB