Analysis

  • max time kernel
    50s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    09-08-2021 15:20

General

  • Target

    c43c3c195e838ef81a36c1434fa7395c.dll

  • Size

    952KB

  • MD5

    c43c3c195e838ef81a36c1434fa7395c

  • SHA1

    c9accdc1204579d13440df22e4892fcc2082dc7c

  • SHA256

    24c57cf9a9fd72827ced5f95796cf333089f076c660bf06b5e7d071a4d5fc102

  • SHA512

    5ec2613176ddf8ca9ae331823cb7b62d436ea007850e60a9aeeee0bf23c827a2e3c1eb422594bdd3ec4c86f7688d91f3e8a3c6b2435c46078069c53947a1739f

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 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c43c3c195e838ef81a36c1434fa7395c.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\c43c3c195e838ef81a36c1434fa7395c.dll
      2⤵
        PID:1520
        • C:\Windows\SysWOW64\msiexec.exe
          msiexec.exe
          3⤵
            PID:1368

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/684-60-0x000007FEFB9F1000-0x000007FEFB9F3000-memory.dmp
        Filesize

        8KB

      • memory/1368-65-0x0000000000000000-mapping.dmp
      • memory/1368-67-0x00000000000D0000-0x00000000000F6000-memory.dmp
        Filesize

        152KB

      • memory/1520-61-0x0000000000000000-mapping.dmp
      • memory/1520-62-0x0000000075C71000-0x0000000075C73000-memory.dmp
        Filesize

        8KB

      • memory/1520-63-0x00000000000C0000-0x00000000000C1000-memory.dmp
        Filesize

        4KB

      • memory/1520-64-0x0000000010000000-0x0000000010155000-memory.dmp
        Filesize

        1.3MB