Resubmissions

08-12-2023 10:29

231208-mjmm7aaf64 10

04-03-2021 12:26

210304-3wfljytl3s 10

Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    04-03-2021 12:26

General

  • Target

    todxofs.dll

  • Size

    421KB

  • MD5

    f40160b2cfe0667cb4010a400a835a06

  • SHA1

    976c70ede8d10e825cb9e5bd5da0dd2a251bd0e8

  • SHA256

    d63088780e90eda6a7ce286d6b190614f0ea6f1f55c6e6e9d6a30260eb84d03c

  • SHA512

    e919819cdc45b2ed93c69f3f0267698940ee316707f6a722697100bfa79da9d277667c0276f36ba47f62dea8855e18e0e8ffaf5a708b369d73d2961b9fdfc3b4

Malware Config

Extracted

Family

zloader

Botnet

April23Fixed

Campaign

April23Fixed

C2

http://wmwifbajxxbcxmucxmlc.com/post.php

http://onfovdaqqrwbvdfoqnof.com/post.php

http://cmmxhurildiigqghlryq.com/post.php

http://nmqsmbiabjdnuushksas.com/post.php

http://fvqlkgedqjiqgapudkgq.com/post.php

http://iawfqecrwohcxnhwtofa.com/post.php

http://nlbmfsyplohyaicmxhum.com/post.php

http://snnmnkxdhflwgthqismb.com/post.php

rc4.plain

Signatures

  • Zloader, Terdot, DELoader, ZeusSphinx

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\todxofs.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\todxofs.dll,#1
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1360
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:984

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/984-6-0x0000000000450000-0x0000000000484000-memory.dmp

    Filesize

    208KB

  • memory/1360-3-0x0000000073170000-0x00000000731A4000-memory.dmp

    Filesize

    208KB

  • memory/1360-4-0x00000000012D0000-0x00000000012D1000-memory.dmp

    Filesize

    4KB