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Analysis

  • max time kernel
    141s
  • max time network
    143s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 12:48

General

  • Target

    ef08da1982b02ea0fdca8fd3bbdf627f7d81d1662168800e746b0f621eedde44.exe

  • Size

    6.9MB

  • MD5

    9bb8ceb9d8723bef224c4687276c4ad8

  • SHA1

    c101b890d16cc1369d64ac66cc42f6f86b77d268

  • SHA256

    ef08da1982b02ea0fdca8fd3bbdf627f7d81d1662168800e746b0f621eedde44

  • SHA512

    b1007aebeb16b2f6a9b914b8452d1abc358fb8d43a9f73621dca68fa08c2b4cc50c66844679dc986027bb5c0092d549802da5cd5c343a7960da7679394b09887

  • SSDEEP

    196608:xDoG3bFqjpLC0TSMLsn33HR83v9i8l7INzj:xDyNLCWZ2HS9iQ7INzj

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\ef08da1982b02ea0fdca8fd3bbdf627f7d81d1662168800e746b0f621eedde44.exe
    "C:\Users\Admin\AppData\Local\Temp\ef08da1982b02ea0fdca8fd3bbdf627f7d81d1662168800e746b0f621eedde44.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\AppData\Local\Temp\is-O7PR3.tmp\ef08da1982b02ea0fdca8fd3bbdf627f7d81d1662168800e746b0f621eedde44.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-O7PR3.tmp\ef08da1982b02ea0fdca8fd3bbdf627f7d81d1662168800e746b0f621eedde44.tmp" /SL5="$D01EA,6971036,68096,C:\Users\Admin\AppData\Local\Temp\ef08da1982b02ea0fdca8fd3bbdf627f7d81d1662168800e746b0f621eedde44.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2360
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2316
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3340
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3916
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:2364
          • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
            "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
            3⤵
            • Executes dropped EXE
            PID:2572

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        846KB

        MD5

        2fcddded959d06709f93fb6398e5e913

        SHA1

        f3c7aaf6233765df7f2a8baf67b085593f158830

        SHA256

        599376ac7134974706885ab008864657cc02fd2f705714abe4e7b61d3ac16fee

        SHA512

        29fa7848fe41ffd0e824c29b69a338adccf0a9dd5cf6eb4b879a525f08976b7be0d776a3b8d627827c7ce35bfc7615239cc8befc25e4406681ac688e52ec044e

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

        Filesize

        248KB

        MD5

        487adc86c90a7a713d6c95ddcaa37251

        SHA1

        56defb008e214ea9234ccdc364e85e0a0b48c85e

        SHA256

        496c59d6c8c4524c7544865751be8df0bdebeea4d3d878b7a732e02774390927

        SHA512

        c60ad1293714a58832fe12a986284e9a7c2c66998fee3f413452140274ae3b80f48287492799137b0e955bcbef884c1dfab31addbae50cdebfcbd2c67200cfeb

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

        Filesize

        209KB

        MD5

        5b181e390b53ea345cd71ac9f83cdeb3

        SHA1

        95b78cf3c721ee11c1f7a46c56dbb060b55435a5

        SHA256

        03eed0bfe62e575eb2190b0c76c3863e97d68a085c3824d95ec178685a965df2

        SHA512

        d02e2cdc2934b1e12f04ccaebc592ca932d8b2229040ec35a5f082c45f55fcb72ace24e0cf8f8ef317fdd65b4ca2b731e32472032bbf26559a4fe4e847243a68

      • C:\Users\Admin\AppData\Local\Temp\is-O7PR3.tmp\ef08da1982b02ea0fdca8fd3bbdf627f7d81d1662168800e746b0f621eedde44.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-5M9UF.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-5M9UF.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1416-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/1416-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2360-15-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/2360-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/2360-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2572-181-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-188-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-178-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/2572-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-182-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/2572-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-189-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/2572-192-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2572-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3340-150-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3340-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3340-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3340-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB