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Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2023, 15:19

General

  • Target

    1a0a3e47cd04f3d518d5949973956cce9e72a91898b415a36c776e8c2dac5986.exe

  • Size

    6.9MB

  • MD5

    7161e57327a253c33a03b5a9de9a8ec5

  • SHA1

    b291a113965afd34ef3af27d8c45b17d576af042

  • SHA256

    1a0a3e47cd04f3d518d5949973956cce9e72a91898b415a36c776e8c2dac5986

  • SHA512

    b6916778855ba257152868ad569ea35bca260ee40010b62ad93323934529c3c025d491b52032ab05d17d92e4665a8c6531836bda5acdee5c3bc26cc0a9b7a451

  • SSDEEP

    196608:mW0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:mtO/hAPmVNyEWeNzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 3 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 63 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a0a3e47cd04f3d518d5949973956cce9e72a91898b415a36c776e8c2dac5986.exe
    "C:\Users\Admin\AppData\Local\Temp\1a0a3e47cd04f3d518d5949973956cce9e72a91898b415a36c776e8c2dac5986.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4692
    • C:\Users\Admin\AppData\Local\Temp\is-H3EAU.tmp\1a0a3e47cd04f3d518d5949973956cce9e72a91898b415a36c776e8c2dac5986.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-H3EAU.tmp\1a0a3e47cd04f3d518d5949973956cce9e72a91898b415a36c776e8c2dac5986.tmp" /SL5="$B0068,6973457,68096,C:\Users\Admin\AppData\Local\Temp\1a0a3e47cd04f3d518d5949973956cce9e72a91898b415a36c776e8c2dac5986.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4636
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3256
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2280
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1116
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:4960
          • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
            "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
            3⤵
            • Executes dropped EXE
            PID:544

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        1.2MB

        MD5

        9e52b7d1cd7212d0e712ee6da537187c

        SHA1

        6b0d932e849325c6b46cbbd85e5558389c3f5244

        SHA256

        6bc7c70782ac96f9c8e59c625078eafe63a3b950ea5ebe82b0b9566a775014d5

        SHA512

        32b3748380d450a347e690c904cb6ea2e8ec79fff25b1e3cd4ba0b53e92a4fc13e3e5f064fc85bce3e693609e306d093699ebc4a5746caf7c130fc84c1c7575a

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        1.4MB

        MD5

        c58561b0917048a7820f711e5d94704f

        SHA1

        21a8f321cd6fbd0135d624033900513900bc0849

        SHA256

        57d644ebb77a3633bc061dabbd034daf8640e6e17bb0110712f3a5d643ff3db7

        SHA512

        c6357982d34f5d347a4519309c6f6ce4613366561ee34ba887e65b9ba544b4e8916faabc9ca3b0f3e9567fa65d85e1abb0c2b1615b00899cd759017ae8f8af54

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        113KB

        MD5

        862aecd51d758b53af39c2a1634bbc9e

        SHA1

        1ef50454283cd2338ab6a8e63b31ecbe8d67fb16

        SHA256

        bc6d67470e53fe1ebd2c56f186bd2de9f4bb46cb2b8a2e3ed40e027129cd77d2

        SHA512

        25891af2a493e6c494ef5c02b1ef1b1af0b8812901c8f46088c77ae786ba5e43c8683d633abb11ad610f1d962a18a5917e253f223086422c667e4c81e3812c51

      • C:\Users\Admin\AppData\Local\Temp\is-H3EAU.tmp\1a0a3e47cd04f3d518d5949973956cce9e72a91898b415a36c776e8c2dac5986.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • C:\Users\Admin\AppData\Local\Temp\is-TQAM4.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-TQAM4.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/544-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-200-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-197-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-194-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-206-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-184-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-191-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-188-0x0000000000850000-0x00000000008EE000-memory.dmp

        Filesize

        632KB

      • memory/544-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-187-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-178-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/544-179-0x0000000000850000-0x00000000008EE000-memory.dmp

        Filesize

        632KB

      • memory/2280-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2280-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2280-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-162-0x0000000002230000-0x0000000002231000-memory.dmp

        Filesize

        4KB

      • memory/4636-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4636-10-0x0000000002230000-0x0000000002231000-memory.dmp

        Filesize

        4KB

      • memory/4692-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4692-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4692-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB