Analysis

  • max time kernel
    54s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    02-03-2021 09:16

General

  • Target

    c5a07a557082018c4b3526b12e681182d7e489ce22e90c2b4f68feae5f93d4d0.dll

  • Size

    554KB

  • MD5

    48f3bf2aad96b4893e873cf82d170f54

  • SHA1

    ef34b6817e4142000cf512ed063fbc2beadf5be8

  • SHA256

    c5a07a557082018c4b3526b12e681182d7e489ce22e90c2b4f68feae5f93d4d0

  • SHA512

    1f7cf4b33257490cab2510644bb27adfec039df43c51ab9f860ebeaddc1f523d15169deb1dda32d0ce02fe19ac842c9dceabe8833df7f0a98748d18e508ccb81

Malware Config

Extracted

Family

zloader

Botnet

kev

Campaign

25/01

C2

https://sadnan.com/post.php

https://www.isds.com.my/post.php

https://nawirifarm.co.ke/post.php

https://dev01.perdiscoo.com/post.php

https://ingenieriaoasisdebc.com/post.php

https://brinitezcresan.gq/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.

  • Blocklisted process makes network request 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c5a07a557082018c4b3526b12e681182d7e489ce22e90c2b4f68feae5f93d4d0.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:812
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\c5a07a557082018c4b3526b12e681182d7e489ce22e90c2b4f68feae5f93d4d0.dll
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2360
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of AdjustPrivilegeToken
        PID:1976

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1976-5-0x0000000000000000-mapping.dmp

  • memory/1976-6-0x0000000000520000-0x0000000000546000-memory.dmp

    Filesize

    152KB

  • memory/2360-2-0x0000000000000000-mapping.dmp

  • memory/2360-3-0x00000000743F0000-0x0000000074416000-memory.dmp

    Filesize

    152KB

  • memory/2360-4-0x00000000007D0000-0x00000000007D1000-memory.dmp

    Filesize

    4KB