Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 20:34

General

  • Target

    haao15.cab.dll

  • Size

    242KB

  • MD5

    7e040ce0f485ca329566e5b91b4644d2

  • SHA1

    1e9c18f525811890a4c1547e6a66d96becea3820

  • SHA256

    73926cf57488263db6454fecf95436c25aa581ad1c353c135dc3d8e258be2f8d

  • SHA512

    29c28c898c81a1d5ee6c9149fee9c9efc45e7418b0c49aea391ce5991b15ffd488a4fd1110bee9a1cb304a43ccdb1fb7daa86cfa2648d15b4ff7ad93845812fb

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.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\haao15.cab.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4768
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe //E:jscript "C:\Users\Public\anFJjtYxH.eB_c_
        3⤵
          PID:3980
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:732

      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/3980-1-0x0000000000000000-mapping.dmp

      • memory/4768-0-0x0000000000000000-mapping.dmp