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Analysis

  • max time kernel
    161s
  • max time network
    158s
  • 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, 08:21

General

  • Target

    8dd0187a15d094320153616c7da601efc5ea39c216cdbdc6eeea7d05a2b7940c.exe

  • Size

    6.9MB

  • MD5

    ad4f38c231e63d453895fcf32b523d7e

  • SHA1

    1c45bad12b7d67e85ddc5e85b9238b7c4613558c

  • SHA256

    8dd0187a15d094320153616c7da601efc5ea39c216cdbdc6eeea7d05a2b7940c

  • SHA512

    15074483b0205f50bf94c661b846f3ccaf5fbc65d10d8521c6f4c2c41cdaa935bfb7f95e3e6a6f41846d45288f3efeacaac92477efac733a450e85f7aebe5e7c

  • SSDEEP

    196608:tyD4UUAnfcrSuleVp+jatZRGrrC/sF5wvACzj:o4Uvfc2RGatZcXF5uzj

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\8dd0187a15d094320153616c7da601efc5ea39c216cdbdc6eeea7d05a2b7940c.exe
    "C:\Users\Admin\AppData\Local\Temp\8dd0187a15d094320153616c7da601efc5ea39c216cdbdc6eeea7d05a2b7940c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Users\Admin\AppData\Local\Temp\is-B3DT1.tmp\8dd0187a15d094320153616c7da601efc5ea39c216cdbdc6eeea7d05a2b7940c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-B3DT1.tmp\8dd0187a15d094320153616c7da601efc5ea39c216cdbdc6eeea7d05a2b7940c.tmp" /SL5="$7021A,6986290,68096,C:\Users\Admin\AppData\Local\Temp\8dd0187a15d094320153616c7da601efc5ea39c216cdbdc6eeea7d05a2b7940c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4716
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3684
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3668
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3616
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3500
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:1504

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        ee8b22146a6e1f7cbba2c11bbca9b52b

        SHA1

        f67a54573451b7bf873192100a1ef3e1c980f7a2

        SHA256

        5a3ad1b1662ad7858be1fef617d98b04f0eb23b10fc806a89ca3de8ce36ccd77

        SHA512

        16254c4914b639a7bde084fd1970c62e2a637b72a9cb86ab43f13da5c473e44612596b003389314eadc136034f726900b895b3180b1d8bfe4752d2e7fbcbeefa

      • C:\Users\Admin\AppData\Local\Temp\is-B3DT1.tmp\8dd0187a15d094320153616c7da601efc5ea39c216cdbdc6eeea7d05a2b7940c.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • C:\Users\Admin\AppData\Local\Temp\is-UEQ29.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-UEQ29.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/540-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/540-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/540-23-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3616-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-206-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-200-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-192-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/3616-168-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-180-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/3616-181-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3616-182-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/3616-187-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3668-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3668-156-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3668-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3668-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4716-7-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/4716-163-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/4716-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB