Analysis

  • max time kernel
    149s
  • max time network
    108s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 20:14

General

  • Target

    haao15.cab.exe_.dll

  • Size

    242KB

  • MD5

    0274a7ca31ebac9b62ec63a06260407a

  • SHA1

    8270c4098810834cf01a14e38c81054bf98cccef

  • SHA256

    4069689f46e160bb37d2fed931b8aa255f1cc8df5161ae0f5ed67c6bc3ce545d

  • SHA512

    11ec6977bc72d7fb246e12223e544c519d8f4b6437e97438415f6c136dd8e4d67911f30341a08677edb1201fda588d5e56cf1cffe5e2fdd614929849e02a28cc

Score
10/10

Malware Config

Signatures

  • Valak

    Valak is a JavaScript loader, a link in a chain of distribution of other malware families.

  • Valak JavaScript Loader 2 IoCs
  • JavaScript code in executable 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\haao15.cab.exe_.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\haao15.cab.exe_.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe //E:jscript "C:\Users\Public\anFJjtYxH.eB_c_
        3⤵
          PID:2876
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:2456
      • C:\Windows\system32\wbem\WmiApSrv.exe
        C:\Windows\system32\wbem\WmiApSrv.exe
        1⤵
          PID:3940
        • C:\Windows\system32\wbem\WmiApSrv.exe
          C:\Windows\system32\wbem\WmiApSrv.exe
          1⤵
            PID:216

          Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          • C:\Users\Public\anFJjtYxH.eB_c_

            MD5

            bf9cfe46e69997b0d8ac4ffb528ab0df

            SHA1

            399337ad73221675067a85f3251e31042886d536

            SHA256

            395df3a563bc865221738b938998e6a45094f5c396302e4f151631e78aeb9d2d

            SHA512

            f432a42d355d5ac058dd68660b9d0a7bd901eaf3b55fd184b3fb2c7b075523eca7e1262bc757fc2600934112fde781823d721a32754f87f6501f487b36b10fa9

          • memory/1628-0-0x0000000000000000-mapping.dmp

          • memory/2876-1-0x0000000000000000-mapping.dmp