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Analysis

  • max time kernel
    144s
  • 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, 07:17

General

  • Target

    ca7bcbfab2dd4cc3608e8b4d170cf6685bc82f6a47d7074557fbda349b7c41da.exe

  • Size

    6.9MB

  • MD5

    f598dd67ced873e0810fbcbd82c37abc

  • SHA1

    c415e905adf261911430cadc1ad2496d8acad755

  • SHA256

    ca7bcbfab2dd4cc3608e8b4d170cf6685bc82f6a47d7074557fbda349b7c41da

  • SHA512

    159d6e0cc997edf3dda9a59cec416727203f0d26f8faccedd141d183b47eca7d45e879bd33eef8a23a6434b60bf002bc7453c572830eeb24ecda878fd7398deb

  • SSDEEP

    196608:jRW8Bq+q3WGhRQY914E1DF+V3bm/LCGNq3eUeKP3gdVfzj:jQeqbhPK4DFY4CtOUYVfzj

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\ca7bcbfab2dd4cc3608e8b4d170cf6685bc82f6a47d7074557fbda349b7c41da.exe
    "C:\Users\Admin\AppData\Local\Temp\ca7bcbfab2dd4cc3608e8b4d170cf6685bc82f6a47d7074557fbda349b7c41da.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3800
    • C:\Users\Admin\AppData\Local\Temp\is-VTJP3.tmp\ca7bcbfab2dd4cc3608e8b4d170cf6685bc82f6a47d7074557fbda349b7c41da.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VTJP3.tmp\ca7bcbfab2dd4cc3608e8b4d170cf6685bc82f6a47d7074557fbda349b7c41da.tmp" /SL5="$C0056,6953145,68096,C:\Users\Admin\AppData\Local\Temp\ca7bcbfab2dd4cc3608e8b4d170cf6685bc82f6a47d7074557fbda349b7c41da.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1880
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:232
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:224
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4216
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1312
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:736

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        0280b00d7cf6a1d0e836f72f5e94c0fb

        SHA1

        8f21d39aa6137c758f73c378042dde4001006946

        SHA256

        5494dda0175037320250f0dca19188091efff397b7e3a7f181e449c4c216703c

        SHA512

        072cf3bc6c580035a8f0ae719b03662d762a994138f879d2c6380cd8aff71b1c55731fb99658dec6a23756ad8fbafa7122480a6cd8434788eee6047181b7920e

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

        Filesize

        1.5MB

        MD5

        d21965aa69793cebacb5e815cc729b0d

        SHA1

        b9f9fe05c36a894b9eb8039031e1309d1fe8170b

        SHA256

        4f12f49ff26c66041c81f7095b3df575b347829ed7676f64d1748acc2fc669dd

        SHA512

        e644f5fa13ff5b5952acad6c38c0a1d518cc11cd23fb53127a79fabe13f2360b03bfc8ce4031533665dece6ccba06ded5d6989c6c5c2e0e5f313f223b4f9676d

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

        Filesize

        506KB

        MD5

        e4690ac2214f1a9240b2702da47218b7

        SHA1

        816a295ef01a866d91225ae32b5148376a4be554

        SHA256

        004f0d8fdde89ec2e8b865d4fc9dcf3a19d5c6d8c601635237edf498f3fcbcf4

        SHA512

        3023cb995f8a5bf2cc2635fe937993aa377b8ecb0ee719f1d291b3a39c4fe58a0826fe6710525daab5e566c390f89ba407880c7b2e755411b8ef8ddc6ea75792

      • C:\Users\Admin\AppData\Local\Temp\is-NJKF3.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-NJKF3.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-VTJP3.tmp\ca7bcbfab2dd4cc3608e8b4d170cf6685bc82f6a47d7074557fbda349b7c41da.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/224-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/224-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/224-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/224-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1880-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/1880-7-0x0000000002340000-0x0000000002341000-memory.dmp

        Filesize

        4KB

      • memory/1880-163-0x0000000002340000-0x0000000002341000-memory.dmp

        Filesize

        4KB

      • memory/3800-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3800-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3800-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4216-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-180-0x0000000000850000-0x00000000008EE000-memory.dmp

        Filesize

        632KB

      • memory/4216-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-188-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-189-0x0000000000850000-0x00000000008EE000-memory.dmp

        Filesize

        632KB

      • memory/4216-192-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4216-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB