Analysis

  • max time kernel
    146s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2023, 13:20

General

  • Target

    233763e18669a78ffcc4243390eb4a1e8b5806f83e862cd7eb32b60e5895870b.exe

  • Size

    6.9MB

  • MD5

    a3eca289d6043a723e9577c2528c0e71

  • SHA1

    6a5e326ed176b7aa8ee0224d682a3f6dc3d29aa4

  • SHA256

    233763e18669a78ffcc4243390eb4a1e8b5806f83e862cd7eb32b60e5895870b

  • SHA512

    f94e7fc839adbf6c4dc8491465648f35ce2ecf6de057b14e1a4c77184a81322326f108cf70d0bbbbd627e1a8e67dca5c75047b2a40ddb5b7159ae1e0b05df99b

  • SSDEEP

    196608:7eusL5Sg97UrK5EvfjuiKsrGugWn7juD9k3Ozj:qVsg95KnxLrGufn765k+zj

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\233763e18669a78ffcc4243390eb4a1e8b5806f83e862cd7eb32b60e5895870b.exe
    "C:\Users\Admin\AppData\Local\Temp\233763e18669a78ffcc4243390eb4a1e8b5806f83e862cd7eb32b60e5895870b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Users\Admin\AppData\Local\Temp\is-QIBKT.tmp\233763e18669a78ffcc4243390eb4a1e8b5806f83e862cd7eb32b60e5895870b.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QIBKT.tmp\233763e18669a78ffcc4243390eb4a1e8b5806f83e862cd7eb32b60e5895870b.tmp" /SL5="$50236,6944675,68096,C:\Users\Admin\AppData\Local\Temp\233763e18669a78ffcc4243390eb4a1e8b5806f83e862cd7eb32b60e5895870b.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2288
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3632
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4148
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:776
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:564
          • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
            "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
            3⤵
            • Executes dropped EXE
            PID:880

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.5MB

        MD5

        b22e3f933ca1fa18a25a0410c913c9aa

        SHA1

        847b50ab66756fe1aa1250140a48024aeb332841

        SHA256

        c4c7bf98600ebe60eee7f0bc7da5d177016909344c64f970929e7039fb83168b

        SHA512

        7389c720747f47ecfc12fdc2caf21bd1766fbf3b6001025946f283f1c1e2ec2f448991330f85b0c5c5376472c0605c973ef3b1e0f5af950cfcbe33fbd6c29467

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

        Filesize

        970KB

        MD5

        63252b94d971f5adc2e3193780e696ac

        SHA1

        78db54aed896682d991688ffd6d372303b38ee83

        SHA256

        1f362967ecc987188011266dff09527c6ec49768e2cb347121975e26685231c7

        SHA512

        663139cad79ae2aa9002e45630528aae38c231ab019a445bd73ebfec68b55316f6924f2e9a4d1debe952b627c8745f97aa45a7f38687b57a516cacf9be7af229

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

        Filesize

        207KB

        MD5

        f18093c85dd1a5d64d06f9d1d9bae09a

        SHA1

        658475274d358f0e47bc868e5b0a485a0af81ebe

        SHA256

        93ba981cc068b4838e8ec699226b72cdc299e8d749ffd640f9a603d7f97e8670

        SHA512

        bd334001eb823b0b173aeebe814254237719bf738391074d06cf204e1bedf3a5a5241ee2ce26d094028f2b85c74264e4f870236b378edbe0e29620854ecd0dd5

      • C:\Users\Admin\AppData\Local\Temp\is-I8CAT.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-I8CAT.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-QIBKT.tmp\233763e18669a78ffcc4243390eb4a1e8b5806f83e862cd7eb32b60e5895870b.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/880-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-190-0x0000000000700000-0x000000000079E000-memory.dmp

        Filesize

        632KB

      • memory/880-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-181-0x0000000000700000-0x000000000079E000-memory.dmp

        Filesize

        632KB

      • memory/880-209-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-206-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/880-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2288-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2288-163-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/2288-7-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/4148-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4148-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4148-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4148-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4536-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4536-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4536-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB