Analysis

  • max time kernel
    74s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    14-04-2021 07:23

General

  • Target

    2SoXN.dll

  • Size

    666KB

  • MD5

    dac52df1477fe8b567b656c1da2e876f

  • SHA1

    4b020a24c3d68b21b586a531e04d558f04de4f52

  • SHA256

    314ac0158727ba0bed95d244200e569e5aa9528f4c567c1c2c5cfba542fe545c

  • SHA512

    fb36eb6c6327b8e51cb5230ab5206b2fb327ff440d3e9219535b75b39bd6d03871be7069960120238072a2b0c29ba5716ba8868d02a1fc85b0a62445454cc240

Malware Config

Extracted

Family

zloader

Botnet

nut

Campaign

13/04

C2

https://jiaayanu.com/post.php

https://investinszeklerland.eu/post.php

https://iqs-sac.com/post.php

https://jciems.in/post.php

https://jinnahofficersschool.com/post.php

https://kancagh.com/post.php

rc4.plain
rsa_pubkey.plain

Signatures

  • Zloader, Terdot, DELoader, ZeusSphinx

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\2SoXN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2SoXN.dll,#1
      2⤵
        PID:4744

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4744-114-0x0000000000000000-mapping.dmp

    • memory/4744-115-0x0000000073B90000-0x0000000073BBB000-memory.dmp

      Filesize

      172KB

    • memory/4744-116-0x0000000073B90000-0x0000000073C58000-memory.dmp

      Filesize

      800KB

    • memory/4744-117-0x0000000000FD0000-0x0000000000FD1000-memory.dmp

      Filesize

      4KB