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Analysis

  • max time kernel
    144s
  • max time network
    145s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12/12/2023, 06:44

General

  • Target

    f7991fc85bf9d13fcc12e0ab50ac2b545d5b3668c4978e621d3c3bae376adf67.exe

  • Size

    7.7MB

  • MD5

    ef41902fa9a7df3c59b6f6f48de54663

  • SHA1

    0a7f5ea7d64b4fb485bc9834defadc11e6ccf301

  • SHA256

    f7991fc85bf9d13fcc12e0ab50ac2b545d5b3668c4978e621d3c3bae376adf67

  • SHA512

    b70854e698a50eab962b803f6763cb20e699fcaa17109350125a5c339a342b1e72e5246388a65a7f39f18dee8078cc93ed969a3e0f6443ea7cab91411378ca4b

  • SSDEEP

    196608:Bxm5+owJB5yCqVoeL8gqA1u8QWGVq/iUYJ0Mnizj:2w7rq1L58WGVqaDizj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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\f7991fc85bf9d13fcc12e0ab50ac2b545d5b3668c4978e621d3c3bae376adf67.exe
    "C:\Users\Admin\AppData\Local\Temp\f7991fc85bf9d13fcc12e0ab50ac2b545d5b3668c4978e621d3c3bae376adf67.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4340
    • C:\Users\Admin\AppData\Local\Temp\is-ESC4V.tmp\f7991fc85bf9d13fcc12e0ab50ac2b545d5b3668c4978e621d3c3bae376adf67.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ESC4V.tmp\f7991fc85bf9d13fcc12e0ab50ac2b545d5b3668c4978e621d3c3bae376adf67.tmp" /SL5="$1201F2,7817201,121856,C:\Users\Admin\AppData\Local\Temp\f7991fc85bf9d13fcc12e0ab50ac2b545d5b3668c4978e621d3c3bae376adf67.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2368
        • C:\Program Files (x86)\GIFMount\gifmon.exe
          "C:\Program Files (x86)\GIFMount\gifmon.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1492
        • C:\Program Files (x86)\GIFMount\gifmon.exe
          "C:\Program Files (x86)\GIFMount\gifmon.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1656
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3696
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:4568

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\GIFMount\gifmon.exe

        Filesize

        418KB

        MD5

        48bc97a41eb79ac26ec75fab97289af4

        SHA1

        a807317f77a5b3ee4beda9334de202ab28fbdd93

        SHA256

        d9d695ad083676b6d23bc5f23a70ffbb62fd13d190653ee4284c994882596adc

        SHA512

        5cd95594e65e0a9bf57271821a5b83f8641f0f0bfb0b8032a737e7da3f2f9ae2768effa94aa3fc29d2b4f4e3af0f7a153e60025ea847c0ba0507576dc2a3fbef

      • C:\Program Files (x86)\GIFMount\gifmon.exe

        Filesize

        510KB

        MD5

        78bf5afb425219a43c12bb8a387ea8f2

        SHA1

        e4336bb7d904f3c8032b7c3c4e6956cb23df88fa

        SHA256

        ae74e6d2c0acf6ffd111ad1590b684ad28d30bc7c51c33b40e3c17b715e1ae63

        SHA512

        750fc162182b3d692cbf9ab799b3fb4c926da39ceb1197b0246d2a04d408b8894b1a8fb1e207cf8c7248b2ff0f3aeaf826d93eaab7717370ec123093384d0ba1

      • C:\Program Files (x86)\GIFMount\gifmon.exe

        Filesize

        1.2MB

        MD5

        afe0d8983667582f4cd173059cd4c8b3

        SHA1

        dd9df06c5aa88860cb847a183395d640b0051a4f

        SHA256

        ebadf3d40eb4a72e40834dff31bf96c4310ceb19807f8a23a9db9fb853d59a3c

        SHA512

        89d13b55653f6550cd29905456a684b1a4445bf1b6982a68d2f2bc9ac82da2017f1e997251bb4315abf0aeee73a45a0574283105d6fbb8f173f79416718398e0

      • C:\Users\Admin\AppData\Local\Temp\is-ESC4V.tmp\f7991fc85bf9d13fcc12e0ab50ac2b545d5b3668c4978e621d3c3bae376adf67.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-A1SRQ.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-A1SRQ.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1492-153-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1492-151-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1492-150-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1492-154-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-161-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-187-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-156-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-158-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-207-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-203-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-200-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-197-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-165-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-166-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-169-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-172-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-175-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-178-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-179-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/1656-184-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-194-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/1656-190-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/1656-191-0x0000000000400000-0x000000000069B000-memory.dmp

        Filesize

        2.6MB

      • memory/3372-8-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3372-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3372-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4340-0-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4340-159-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB