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Analysis

  • max time kernel
    124s
  • max time network
    152s
  • 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, 08:14

General

  • Target

    bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916.exe

  • Size

    6.9MB

  • MD5

    5300d719502d276812d861d16c582b80

  • SHA1

    f559fe14fc11b32b3e7c214a297a5e51422173ef

  • SHA256

    bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916

  • SHA512

    dbdabc1abf3b58f0fc851c166c54f3f0b52361f33c4ab4fce5ef3ac16ae4ba13f8db8ffc2db21b06e03cc37160e36e2bfa7b36413a5e41b018590769a3b4b3ce

  • SSDEEP

    98304:LCtQAsI29jHcxWjRTp6azZzB8hi4ZoEiAmP+xhctqd60dVADjhSF1O8lw3kBL7l7:AstjRJ/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\bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916.exe
    "C:\Users\Admin\AppData\Local\Temp\bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2908
    • C:\Users\Admin\AppData\Local\Temp\is-O56F8.tmp\bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-O56F8.tmp\bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916.tmp" /SL5="$9006A,6990075,68096,C:\Users\Admin\AppData\Local\Temp\bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4652
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4664
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1044
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4688
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1080
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:3208

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        414KB

        MD5

        35f272adb51770a9766fbb4ca17c406f

        SHA1

        b5079f1b04d2806e0a34cc71d874cabc8405bfa0

        SHA256

        15abcb0c3b52305e41e57bb5dc61b47d7e3fd2e56044837770dcfe3aae818bd4

        SHA512

        38474b29794ad1ccfd2679b1d21843fda51e4e6c69964bc66771baf6b1912c78b0684e2d12cecd96469e8090adafb5da553e5b8d57d6ecaa6e933a44bb870bc9

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

        Filesize

        288KB

        MD5

        b620ab4bb9de57ec1f67dc080a7833cf

        SHA1

        e34e334eccabfe24a9ba7fc57097edec5e8ee000

        SHA256

        0814c8ee58e529ae5ad9de71f1e39afa277187aa4f0a8d6d40b1fdf46b1d30ce

        SHA512

        2b5963f3d867f065c12b3792d59ff32332ea4c7a6896d9109fcefb84e4a5cf0362d8f309f1f9167c92d8e0af9ef523e1534038468bc812b411c2358fd605b0b3

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

        Filesize

        158KB

        MD5

        e64c66c3032e60b2ac8a9ffb0776e586

        SHA1

        2152ed35cb10d702f147dfd10dce0300c9f03468

        SHA256

        c41da10296e41ce3fe81b3744c4d405cc9880af0d25fcbb7c071235dd1e745e1

        SHA512

        733a78c6351ffb1477ea8893660bc912b90241678eff92a1a81ad5164e0ca538b2e0ded9f28781b4f02b29172d01b8031a150177b7f82f6f1bc6af907c95d4c7

      • C:\Users\Admin\AppData\Local\Temp\is-HIV5M.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-HIV5M.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-O56F8.tmp\bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916.tmp

        Filesize

        488KB

        MD5

        36f5ba0fb4f24de08a587093b81f1453

        SHA1

        ffa96cbbd5a212271de185af0f3c606ae94486b2

        SHA256

        e5415318ae39c46b02a9641dd24c9258970d41e5fa6fda80026adb596e322c46

        SHA512

        b48f6d10bbcb9fc7d7ef388de22ff8ae8b8d85d7d2c3867024521775616b5837bcf639e64253237af3d7ec34d7507c6b5c874a0d23faf06f9bcf9c6d941ff021

      • C:\Users\Admin\AppData\Local\Temp\is-O56F8.tmp\bcc667a87e61c73c4022b23fde6645a33b62539ad95bcd8e2e31e48b8c3d9916.tmp

        Filesize

        447KB

        MD5

        bd3b79d1521aff9d9616f2394bb6299d

        SHA1

        145a1239b7db71f6c6b955de3aa767f8b214230a

        SHA256

        fb6c3361102bb9b5d79acce73f0e2d18ac222f46a5546f24bb370485fca5857d

        SHA512

        4cd1f4850e74d120a4080f631c8b051900954b10123b16e9d754b3c13abd941f2f140efefca3aa6381e3b9d2047f205c2be000ed6a9d75017c0c370f070b0c97

      • memory/1044-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1044-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1044-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2908-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2908-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2908-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4652-163-0x0000000002200000-0x0000000002201000-memory.dmp

        Filesize

        4KB

      • memory/4652-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4652-7-0x0000000002200000-0x0000000002201000-memory.dmp

        Filesize

        4KB

      • memory/4688-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-181-0x0000000000860000-0x00000000008FE000-memory.dmp

        Filesize

        632KB

      • memory/4688-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-180-0x0000000000860000-0x00000000008FE000-memory.dmp

        Filesize

        632KB

      • memory/4688-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-190-0x0000000000860000-0x00000000008FE000-memory.dmp

        Filesize

        632KB

      • memory/4688-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-206-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4688-209-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB