Analysis

  • max time kernel
    144s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:13

General

  • Target

    haao11.cab.dll

  • Size

    180KB

  • MD5

    b69c4c8220ae9ee5b450cc766834d5d7

  • SHA1

    be7197172cbb3640c12d4890333ebbab347e6c08

  • SHA256

    3c7c8fbdd41335948ff0b7e67b905c242865a59c55a4809bf6a5fe4beeee83d9

  • SHA512

    039ff9187d93ce66a7e155846016c2c0c3e630e796ee7ba72f76ba86735962f72144b0c50947886a8a58b67557f5496475ea4ba75cb073760b3b291849982788

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 11 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\haao11.cab.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\haao11.cab.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:316
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe //E:jscript "C:\Users\Public\anFJjtYxH.eB_c_
        3⤵
          PID:1656
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:1120
      • C:\Windows\system32\wbem\WmiApSrv.exe
        C:\Windows\system32\wbem\WmiApSrv.exe
        1⤵
          PID:1600

        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/316-0-0x0000000000000000-mapping.dmp

        • memory/1656-1-0x0000000000000000-mapping.dmp

        • memory/1656-3-0x00000000027F0000-0x00000000027F4000-memory.dmp

          Filesize

          16KB