Analysis

  • max time kernel
    92s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    15-03-2023 23:08

General

  • Target

    ReasonLabs/DNS/rsDwf.cat

  • Size

    10KB

  • MD5

    e026bd7a24cbd3f72c403e4263060ef9

  • SHA1

    b6c5ca836a9b20694258619fdbfaedb79abe4865

  • SHA256

    591d04f9e2d64b3f815868e9e55cdfc4864967f058de1aca63b73d98daabc563

  • SHA512

    dbdaebfef6e4e75c9c83cc685b9e344bdf0c298663d1642bc2fe7b66cd2e9c4f3a5075be85169f15d973317806f5f599112526d1da0678bcdd77009cf7c83b06

  • SSDEEP

    192:bg6clO3JC4F1agjEwOXP6hYCkZL1aqnajKs4fKAs:H5/k6h3kSlGsO3s

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    C:\Windows\system32\rundll32.exe cryptext.dll,CryptExtOpenCAT C:\Users\Admin\AppData\Local\Temp\ReasonLabs\DNS\rsDwf.cat
    1⤵
    • Blocklisted process makes network request
    PID:904

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

  • C:\Users\Admin\AppData\Local\Temp\TarF011.tmp
    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff