Analysis

  • max time kernel
    125s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    02-05-2022 15:36

General

  • Target

    b7824362cae4aa551d8dc5853928f4d7bae5cbddf72c00776f740abfab8b0401.dll

  • Size

    300KB

  • MD5

    5f92662f99a4c56c1ea0f682369716da

  • SHA1

    3d44ed670a81ed475e8399a787a7c05b3b2fb397

  • SHA256

    b7824362cae4aa551d8dc5853928f4d7bae5cbddf72c00776f740abfab8b0401

  • SHA512

    766cc3792d8c3993167e445f655a9f49d11bf38581eac50017ac635b46abc740450fb375bc1fa4c6b828b61e982c32f525adbda5a8f33b4efa04b2949b93a0aa

Malware Config

Extracted

Family

zloader

Botnet

nut

Campaign

09/10

C2

https://1stsecuritysolutions.co.uk/17vfj3.php

https://aplusevents.com.au/elxbmr.php

https://autoescolatopsul.com.br/zsog59.php

https://avecla.es/d3k34t.php

https://triccirohepe.tk/wp-smarts.php

https://botchicoffee.com/fmsbdt.php

https://buddingreport.com/yxewxx.php

Attributes
  • build_id

    163

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\b7824362cae4aa551d8dc5853928f4d7bae5cbddf72c00776f740abfab8b0401.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7824362cae4aa551d8dc5853928f4d7bae5cbddf72c00776f740abfab8b0401.dll,#1
      2⤵
        PID:4560

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4560-130-0x0000000000000000-mapping.dmp

    • memory/4560-132-0x0000000074940000-0x00000000749EA000-memory.dmp

      Filesize

      680KB

    • memory/4560-131-0x0000000074940000-0x0000000074968000-memory.dmp

      Filesize

      160KB