Analysis

  • max time kernel
    150s
  • max time network
    146s
  • 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, 09:10

General

  • Target

    3693538e5faf3ee5246543371d18669e0533a5ab0220594875138c7aad591351.exe

  • Size

    6.9MB

  • MD5

    2eed1328901778ae243cc94447a9b68d

  • SHA1

    ac398ec1647fa64691ead2def41c465a71c6337c

  • SHA256

    3693538e5faf3ee5246543371d18669e0533a5ab0220594875138c7aad591351

  • SHA512

    f6eaa769df7ebb3a66cc944962ec6c4a71afa8757461a4e5cd636ae3e181874d9cadb10afb79cc72aaaec05aebbd020dd3976347eec725d49a4f75517b9cec4f

  • SSDEEP

    98304:GCtQAsI29jHcxWjRTp6azZzB8hi4ZoEiAmP+xhctqd60dVADjhSF1O8lw3kBL7l7:bstjRJ/4ZoSQQhtd6sWDlSrM0BLRrzj

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\3693538e5faf3ee5246543371d18669e0533a5ab0220594875138c7aad591351.exe
    "C:\Users\Admin\AppData\Local\Temp\3693538e5faf3ee5246543371d18669e0533a5ab0220594875138c7aad591351.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3564
    • C:\Users\Admin\AppData\Local\Temp\is-4A5IA.tmp\3693538e5faf3ee5246543371d18669e0533a5ab0220594875138c7aad591351.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4A5IA.tmp\3693538e5faf3ee5246543371d18669e0533a5ab0220594875138c7aad591351.tmp" /SL5="$901CE,6990075,68096,C:\Users\Admin\AppData\Local\Temp\3693538e5faf3ee5246543371d18669e0533a5ab0220594875138c7aad591351.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2036
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2384
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:2044
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3300
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:2028

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\WMAFormat\wmaformat.exe

        Filesize

        1.8MB

        MD5

        524bfe0d470e2ab13742f92cdbfed508

        SHA1

        48101afa30091d7c96a380b5691ffacb5bc384df

        SHA256

        c4c9b495dc588973e4e7309756105795a1d3e0328fa19337a97f5b8a3ed45ea1

        SHA512

        50beaf5e63bdcfa1cff6fc3c4d88ba77e3ec55f6ae9d81163dea30b83f91fb672964460167a66730735d2fccfc8f92a209d272f69349b31b162abe939c7c504e

      • C:\Program Files (x86)\WMAFormat\wmaformat.exe

        Filesize

        960KB

        MD5

        bdf0f82531ef197073c70fd4bf62d051

        SHA1

        b9153b1f610246570be58e1aad3bf6628d758ff6

        SHA256

        6e8ddf66f1df31fc34f5b3d1f5da943b7083c26179a72f592550d9ca28015740

        SHA512

        4132365d87ae3aad7155121f09f797f875cd197757812d2d53b48b715e279e9d188adba677da6ca7dfae51c0e434b9920b3a0056ee34cf789942878d1b5bc459

      • C:\Users\Admin\AppData\Local\Temp\is-4A5IA.tmp\3693538e5faf3ee5246543371d18669e0533a5ab0220594875138c7aad591351.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

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

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1724-164-0x0000000002340000-0x0000000002341000-memory.dmp

        Filesize

        4KB

      • memory/1724-7-0x0000000002340000-0x0000000002341000-memory.dmp

        Filesize

        4KB

      • memory/1724-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2044-182-0x0000000000890000-0x000000000092E000-memory.dmp

        Filesize

        632KB

      • memory/2044-192-0x0000000000890000-0x000000000092E000-memory.dmp

        Filesize

        632KB

      • memory/2044-207-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-200-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-160-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-197-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-163-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-194-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-168-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-171-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-174-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-177-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-180-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-190-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2044-187-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2384-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2384-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2384-156-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2384-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3564-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3564-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3564-91-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB