Analysis

  • max time kernel
    148s
  • max time network
    148s
  • 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, 07:00

General

  • Target

    feb43e7619257b7d8dbac613c2f19c5942305702e21c45ee66f82dc798eb5455.exe

  • Size

    6.9MB

  • MD5

    13cc1740021825400337df99ea1a7dc7

  • SHA1

    264e611d7c8f5dc718c7da74397431f6d664e8cf

  • SHA256

    feb43e7619257b7d8dbac613c2f19c5942305702e21c45ee66f82dc798eb5455

  • SHA512

    e04f1282393b7d3c27e65ff279580b7e00a6779595ffe16432ae830a2458e84a2e065a6fdb1480ba50d306719cc38b56744036e9b367f47ac66b23f02b6b6823

  • SSDEEP

    98304:OCtQAsI29jHcxWjRTp6azZzB8hi4ZoEiAmP+xhctqd60dVADjhSF1O8lw3kBL7l7:TstjRJ/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\feb43e7619257b7d8dbac613c2f19c5942305702e21c45ee66f82dc798eb5455.exe
    "C:\Users\Admin\AppData\Local\Temp\feb43e7619257b7d8dbac613c2f19c5942305702e21c45ee66f82dc798eb5455.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Users\Admin\AppData\Local\Temp\is-7BP9T.tmp\feb43e7619257b7d8dbac613c2f19c5942305702e21c45ee66f82dc798eb5455.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-7BP9T.tmp\feb43e7619257b7d8dbac613c2f19c5942305702e21c45ee66f82dc798eb5455.tmp" /SL5="$50212,6990075,68096,C:\Users\Admin\AppData\Local\Temp\feb43e7619257b7d8dbac613c2f19c5942305702e21c45ee66f82dc798eb5455.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2088
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3800
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2240
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4668
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4380
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:3284

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            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

              1.0MB

              MD5

              33ed147aafd9b583270ef0349df52c6f

              SHA1

              8f07ebeb24ffa6a2fe51321d9e6cefd77b1402b2

              SHA256

              62aee6402a1f5ccf0b446530c58936172c2b2f200037fcf835f93fe4869eb5d0

              SHA512

              c92ca0318eefa9f108af1f11cfb42f4a78e55ebe83abb39c0a0ce42bd4247ee3999011f6883bb35c3ea8792cff67c8acdfc6a4c296bbdf0542829d57790f9d8b

            • C:\Users\Admin\AppData\Local\Temp\is-7BP9T.tmp\feb43e7619257b7d8dbac613c2f19c5942305702e21c45ee66f82dc798eb5455.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • C:\Users\Admin\AppData\Local\Temp\is-NPFU9.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-NPFU9.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/2088-9-0x0000000002340000-0x0000000002341000-memory.dmp

              Filesize

              4KB

            • memory/2088-162-0x0000000002340000-0x0000000002341000-memory.dmp

              Filesize

              4KB

            • memory/2088-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/2240-152-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/2240-151-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/2240-154-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/2240-150-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4308-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/4308-159-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/4668-175-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-180-0x0000000000870000-0x000000000090E000-memory.dmp

              Filesize

              632KB

            • memory/4668-158-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-165-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-169-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-172-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-156-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-178-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-161-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-185-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-188-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-189-0x0000000000870000-0x000000000090E000-memory.dmp

              Filesize

              632KB

            • memory/4668-192-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-195-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-198-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-201-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-204-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4668-207-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB