Analysis

  • max time kernel
    150s
  • max time network
    142s
  • 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, 11:32

General

  • Target

    cdd5d81b6068eb5950cc2f50c857be9681e1a1a1225960a5ffe25b31039fe191.exe

  • Size

    6.9MB

  • MD5

    9e234d9c8b4e7027fde07674e4c2f196

  • SHA1

    ed53444e91955864ec18dc15c413a18c9ec11d98

  • SHA256

    cdd5d81b6068eb5950cc2f50c857be9681e1a1a1225960a5ffe25b31039fe191

  • SHA512

    5639283ffeec0626d2e4855419052731ef093d9960f9324cbd75ec3787c890d018dc3f54fa2e2324e178691b708d60fff3c6356e81dd43e6e3f574b02a80b104

  • SSDEEP

    98304:HCtQAsI29jHcxWjRTp6azZzB8hi4ZoEiAmP+xhctqd60dVADjhSF1O8lw3kBL7l7:UstjRJ/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\cdd5d81b6068eb5950cc2f50c857be9681e1a1a1225960a5ffe25b31039fe191.exe
    "C:\Users\Admin\AppData\Local\Temp\cdd5d81b6068eb5950cc2f50c857be9681e1a1a1225960a5ffe25b31039fe191.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Users\Admin\AppData\Local\Temp\is-LDFEQ.tmp\cdd5d81b6068eb5950cc2f50c857be9681e1a1a1225960a5ffe25b31039fe191.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LDFEQ.tmp\cdd5d81b6068eb5950cc2f50c857be9681e1a1a1225960a5ffe25b31039fe191.tmp" /SL5="$D01C4,6990075,68096,C:\Users\Admin\AppData\Local\Temp\cdd5d81b6068eb5950cc2f50c857be9681e1a1a1225960a5ffe25b31039fe191.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4824
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1152
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3092
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2972
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:4968

      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:\Users\Admin\AppData\Local\Temp\is-LDFEQ.tmp\cdd5d81b6068eb5950cc2f50c857be9681e1a1a1225960a5ffe25b31039fe191.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • C:\Users\Admin\AppData\Local\Temp\is-N7FVM.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-N7FVM.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/1152-151-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/1152-152-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/1152-153-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/1152-155-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/2000-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/2000-6-0x0000000002240000-0x0000000002241000-memory.dmp

              Filesize

              4KB

            • memory/2000-163-0x0000000002240000-0x0000000002241000-memory.dmp

              Filesize

              4KB

            • memory/3092-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-180-0x0000000000770000-0x000000000080E000-memory.dmp

              Filesize

              632KB

            • memory/3092-157-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-162-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-206-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-202-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-167-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-170-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-173-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-176-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-179-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-159-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-181-0x0000000000770000-0x000000000080E000-memory.dmp

              Filesize

              632KB

            • memory/3092-186-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-189-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-191-0x0000000000770000-0x000000000080E000-memory.dmp

              Filesize

              632KB

            • memory/3092-193-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-196-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3092-199-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4744-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/4744-40-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB