Analysis

  • max time kernel
    84s
  • max time network
    156s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    12-08-2021 15:55

General

  • Target

    a9dd9b9eff47af724436e2abdcd5ce6c.exe.dll

  • Size

    485KB

  • MD5

    a9dd9b9eff47af724436e2abdcd5ce6c

  • SHA1

    1a9c9258f0345f5edddd933a7bd15ec42be51f8e

  • SHA256

    cdaca5b6aabd92a7b782c2d7b250cbc1b2ed4c5a78091271f788d58dedcd94f6

  • SHA512

    28af95d398c6311bd593489019be39a23218d64d5236f765c4ecadf43bff07f0ab2aea10413ad7390e3805b09921cdd6c33db734023a6b91a1735125793aea52

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\a9dd9b9eff47af724436e2abdcd5ce6c.exe.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4064
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\a9dd9b9eff47af724436e2abdcd5ce6c.exe.dll
      2⤵
        PID:3476
        • C:\Windows\SysWOW64\msiexec.exe
          msiexec.exe
          3⤵
            PID:2544

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2544-117-0x0000000000000000-mapping.dmp
      • memory/2544-120-0x0000000002E60000-0x0000000002E86000-memory.dmp
        Filesize

        152KB

      • memory/3476-114-0x0000000000000000-mapping.dmp
      • memory/3476-116-0x0000000010000000-0x0000000010129000-memory.dmp
        Filesize

        1.2MB

      • memory/3476-115-0x00000000003C0000-0x00000000003C1000-memory.dmp
        Filesize

        4KB