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Analysis

  • max time kernel
    143s
  • max time network
    134s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 12:21

General

  • Target

    8766322e61f69b0bd171ef52d77e2533abf066a53bff070172cfa9cc225ba396.exe

  • Size

    6.9MB

  • MD5

    edf71a5932a66d1d23016205a2c5f0e8

  • SHA1

    1b0d4586998fdf435c971260b8b570c8ed2743cd

  • SHA256

    8766322e61f69b0bd171ef52d77e2533abf066a53bff070172cfa9cc225ba396

  • SHA512

    671b51942b511aa3980f7e932c28d817a9e00b184cc88f97fe768281b90a0713f0e3f8b87e1b5a95f26a450424ab476a2b082623e4e47e4f56ff8dc20e3bef44

  • SSDEEP

    196608:bxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:QjkHxfKTnJjzKkRtF9zj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 1 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\8766322e61f69b0bd171ef52d77e2533abf066a53bff070172cfa9cc225ba396.exe
    "C:\Users\Admin\AppData\Local\Temp\8766322e61f69b0bd171ef52d77e2533abf066a53bff070172cfa9cc225ba396.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Users\Admin\AppData\Local\Temp\is-HU8B7.tmp\8766322e61f69b0bd171ef52d77e2533abf066a53bff070172cfa9cc225ba396.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HU8B7.tmp\8766322e61f69b0bd171ef52d77e2533abf066a53bff070172cfa9cc225ba396.tmp" /SL5="$80200,6950053,68096,C:\Users\Admin\AppData\Local\Temp\8766322e61f69b0bd171ef52d77e2533abf066a53bff070172cfa9cc225ba396.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4100
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2536
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:788
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4492
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4168
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:2592

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        512KB

        MD5

        eafbb7cc49eb5e70430344f2094cbba8

        SHA1

        66a245195942c1699d72cf60a25e73b364c1acd8

        SHA256

        1417d0a24477746c4e4a1a2ffd5b9dd28f672028ddc020afd7b86e8ba93eebfd

        SHA512

        4d2b56645a2f1e45f2d1233b326fa0c828ec929b28afcbfc24dc9af40a7df57f07a23426a440b4dcf222382ab5d172c28b9b694f7289071ba805f41ecb27ada1

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

        Filesize

        493KB

        MD5

        4d0606a3262b2b8e2b564b2076ec7a18

        SHA1

        bcdfaae099aedcc98baaa4a6dd7ca88d482f646d

        SHA256

        7c4ab42692338778eec6990d50dad0ca17ccbfa97eac6aef6d9d6242ae15c0ba

        SHA512

        1b7ab087c9cceda3dc78e487bfcd0ebefd4bb61f08537c7d8302f952c05dd19f4e87ecb2af0a2e8d20bf51ebb9c57f22782c8dee2d4ca299d4cb9e80d2905297

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

        Filesize

        728KB

        MD5

        1cc416d8cf54189ab754c1556413de64

        SHA1

        4d47d160db10fc54b0bdb2b0953aff81f23172f1

        SHA256

        519577f0bfc4788b142866df7d87d6383f44d76d634f6a0f7301f70d3c93a743

        SHA512

        05b21294351bb09af16d314dd1fdbce61947aeaecab7739f65f3bc5a27853a4c794846e39801d352cad49f4705e164b5bc3eee2dc8ca460472af817049b80ea6

      • C:\Users\Admin\AppData\Local\Temp\is-HU8B7.tmp\8766322e61f69b0bd171ef52d77e2533abf066a53bff070172cfa9cc225ba396.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-CVGQ0.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-CVGQ0.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/788-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/788-150-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/788-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/788-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4100-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4100-8-0x00000000020B0000-0x00000000020B1000-memory.dmp

        Filesize

        4KB

      • memory/4100-162-0x00000000020B0000-0x00000000020B1000-memory.dmp

        Filesize

        4KB

      • memory/4492-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-207-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-156-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-178-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/4492-204-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-184-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-187-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-188-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/4492-191-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-194-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-197-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4492-201-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5048-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/5048-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB