Analysis

  • max time kernel
    103s
  • max time network
    60s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    12/08/2020, 18:03

General

  • Target
    yfuvqe.dll
  • Size 389KB
  • Sample200812-2qdn69qtce
  • SHA256 deac9f705c6ddd2795f31b9d55ace3f3de1e20de314b0c20f1a2e90fdf259cb2
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Family
  • zloader

Botnet
  • mk1

Campaign
  • mac2

C2
  • https://alesirovone.world/click.php

rc4.plain
rsa_pubkey.plain

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Zloader, Terdot, DELoader, ZeusSphinx

    Zloader is a malware strain that was initially discovered back in August 2015.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1228
      • C:\Windows\system32\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\yfuvqe.dll,#1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1544
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\Temp\yfuvqe.dll,#1
          3⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:276
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1388

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/1388-1-0x0000000000090000-0x00000000000BD000-memory.dmp

          memory/1388-2-0x00000000000C0000-0x00000000000C1000-memory.dmp

          memory/1388-3-0x0000000000090000-0x00000000000BD000-memory.dmp