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Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2023, 14:33

General

  • Target

    dfe0f084e79cbd8365229d2b8bfc988ba1fa3309911ff773a4de35e0b8642be4.exe

  • Size

    6.9MB

  • MD5

    a6cac5eb9f4cffdece43f113e17658cf

  • SHA1

    3a3ea5276b2ef19d69ed7d93d138c20c5f29ee9e

  • SHA256

    dfe0f084e79cbd8365229d2b8bfc988ba1fa3309911ff773a4de35e0b8642be4

  • SHA512

    307a4060923ab150cf0e13c32bc9aa5276a6a8f1aa80d6a95301d628d3b7ecbee48fb0aa0fa7931fd23f5653985a0b20327a4e31e483e3b64bc74e6f9b0d00d6

  • SSDEEP

    196608:fxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:sjkHxfKTnJjzKkRtF9zj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 3 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\dfe0f084e79cbd8365229d2b8bfc988ba1fa3309911ff773a4de35e0b8642be4.exe
    "C:\Users\Admin\AppData\Local\Temp\dfe0f084e79cbd8365229d2b8bfc988ba1fa3309911ff773a4de35e0b8642be4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4092
    • C:\Users\Admin\AppData\Local\Temp\is-6BFE4.tmp\dfe0f084e79cbd8365229d2b8bfc988ba1fa3309911ff773a4de35e0b8642be4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6BFE4.tmp\dfe0f084e79cbd8365229d2b8bfc988ba1fa3309911ff773a4de35e0b8642be4.tmp" /SL5="$9021E,6950053,68096,C:\Users\Admin\AppData\Local\Temp\dfe0f084e79cbd8365229d2b8bfc988ba1fa3309911ff773a4de35e0b8642be4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3344
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3692
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3384
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:5048
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:4036

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        1.6MB

        MD5

        373198b967cdf045c6fbf7aa37499b28

        SHA1

        02187067084de11550e11b266cbf69dff1834cac

        SHA256

        6191b3f8e2cfff412501f23354f2e9f8a371609759f08a18d1c60e995d49cc87

        SHA512

        135c7076914b9fc4a530fcb1cc525ccc8e5ffd1617a221fc33321dd1406d419b68363f751f4f6453d4313a541fec0a7d750bb25a286884d4c4431f1671dcd8d2

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        1.8MB

        MD5

        31a67cb10577d20a96937eec6a9b99bd

        SHA1

        a861888ce00888370a85dc2c7925fb4178aa7a2c

        SHA256

        3db1a59d28b184bacc5ac11a362e5c5293118f5bc7948d51def377474def7ff4

        SHA512

        0ca7b34bdee6a0a12feed7be7bf11cca882233353ae382d221a856007d3a396e73d95f230eab7fb2e1e4e361caee8c6b09cf9a3dd5007b732869f8f63f2b8839

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        1017KB

        MD5

        7e22083a770f334e3329944a8ed9aaa6

        SHA1

        3a2bd749c993240c392a7ba3286e6e1be065aa62

        SHA256

        2f6e7c427795d7de6a3b223d16c491b50b1a5c61a7830f014a3519e199d178a7

        SHA512

        f570463367ea7a151e5caf472b13dbffcabe15eac12f6db322ddff61789ec360f4d73369bef8d68d1683e2329c9d33f84301b2aa2dcab8254893059c5d9986a9

      • C:\Users\Admin\AppData\Local\Temp\is-6BFE4.tmp\dfe0f084e79cbd8365229d2b8bfc988ba1fa3309911ff773a4de35e0b8642be4.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • C:\Users\Admin\AppData\Local\Temp\is-J2BPB.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-J2BPB.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/3384-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-190-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/3384-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3384-183-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/3384-180-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/3692-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3692-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3692-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3692-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4092-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4092-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4092-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4528-163-0x0000000000640000-0x0000000000641000-memory.dmp

        Filesize

        4KB

      • memory/4528-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4528-10-0x0000000000640000-0x0000000000641000-memory.dmp

        Filesize

        4KB