Analysis

  • max time kernel
    55s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    05-08-2021 07:31

General

  • Target

    JavaE.dll

  • Size

    279KB

  • MD5

    86cef6c066a05b3f67123fbf638b6b01

  • SHA1

    81618f8ecc48541c219aa974e4b16cab8f34203b

  • SHA256

    86c37d778f584a2a3090ab170c8cd2fb3ddf952cde689b4c5a1efd74fc113a05

  • SHA512

    1132f94eeb8ae5d4556841976789b648f2394a4089db2e6b43c2047cc87004f00e334e14a96c5ab0535aeb13f3bffc8d5e955d7435b9be2aba491bcbe92044d9

Malware Config

Extracted

Family

zloader

Botnet

vasja

Campaign

vasja

C2

https://iqowijsdakm.com/gate.php

https://wiewjdmkfjn.com/gate.php

https://dksaoidiakjd.com/gate.php

https://iweuiqjdakjd.com/gate.php

https://yuidskadjna.com/gate.php

https://olksmadnbdj.com/gate.php

https://odsakmdfnbs.com/gate.php

https://odsakjmdnhsaj.com/gate.php

https://odjdnhsaj.com/gate.php

https://odoishsaj.com/gate.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\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\JavaE.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\JavaE.dll
      2⤵
        PID:424
        • C:\Windows\SysWOW64\msiexec.exe
          msiexec.exe
          3⤵
            PID:3736

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/424-114-0x0000000000000000-mapping.dmp
      • memory/424-116-0x0000000010000000-0x0000000010148000-memory.dmp
        Filesize

        1.3MB

      • memory/424-115-0x0000000003F90000-0x0000000003F91000-memory.dmp
        Filesize

        4KB

      • memory/3736-117-0x0000000000000000-mapping.dmp
      • memory/3736-120-0x0000000000360000-0x0000000000386000-memory.dmp
        Filesize

        152KB