Resubmissions

24-01-2024 07:29

240124-jbnczachd9 10

23-01-2024 11:54

240123-n2wjgsafc6 10

26-06-2020 08:43

200626-953qfplyej 10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    26-06-2020 08:43

General

  • Target

    xiynk.dll

  • Size

    356KB

  • MD5

    e83a8a849188b48e79a6f49dd0c7ae91

  • SHA1

    55a1669550d823104e1452f0e6a0a94c3f7fae12

  • SHA256

    a97b7b2353dc9012b6cb914f6665d0e93f557859411d2e08b942316c09d7b07f

  • SHA512

    b035faff865f72977879322f9d1c08c6f87c96a8805db76a0e5ae4b6118f2b075e58bb1cc6a9cee8ce1c51763301443bab40970ad1f072a1763d7d7727e477f4

Malware Config

Signatures

  • Modifies service 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Blacklisted process makes network request 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Runs net.exe
  • Discovers systems in the same network 1 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Zloader, Terdot, DELoader, ZeusSphinx

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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\xiynk.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:608
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\xiynk.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      • Suspicious use of SetThreadContext
      PID:1184
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        • Blacklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1772
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c ipconfig /all
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1896
          • C:\Windows\SysWOW64\ipconfig.exe
            ipconfig /all
            5⤵
            • Modifies service
            PID:1960
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c net config workstation
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1216
          • C:\Windows\SysWOW64\net.exe
            net config workstation
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2016
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 config workstation
              6⤵
                PID:988
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c net view /all
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1472
            • C:\Windows\SysWOW64\net.exe
              net view /all
              5⤵
              • Discovers systems in the same network
              PID:652
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c net view /all /domain
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:756
            • C:\Windows\SysWOW64\net.exe
              net view /all /domain
              5⤵
              • Discovers systems in the same network
              PID:1368

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1772-3-0x0000000000110000-0x000000000013B000-memory.dmp

      Filesize

      172KB

    • memory/1772-2-0x0000000000140000-0x0000000000141000-memory.dmp

      Filesize

      4KB

    • memory/1772-1-0x0000000000110000-0x000000000013B000-memory.dmp

      Filesize

      172KB