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Analysis

  • max time kernel
    151s
  • max time network
    147s
  • 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, 13:05

General

  • Target

    13628a643cba447b05b1aeca92a5dfe6473151823e48c9e8392c518c9b65a589.exe

  • Size

    6.9MB

  • MD5

    f736856c511a45f3d1eb860d7fcc9298

  • SHA1

    d8fa070012d081db4077b26eb308304aa34ed2d8

  • SHA256

    13628a643cba447b05b1aeca92a5dfe6473151823e48c9e8392c518c9b65a589

  • SHA512

    af362784303df456ec0405aebb929e196dfce4baa840887951b85ec192af1b8412865ac1841617a9173959dae84b8103c530af7fa393f4ca3aed0341448ef7be

  • SSDEEP

    196608:AxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:DjkHxfKTnJjzKkRtF9zj

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\13628a643cba447b05b1aeca92a5dfe6473151823e48c9e8392c518c9b65a589.exe
    "C:\Users\Admin\AppData\Local\Temp\13628a643cba447b05b1aeca92a5dfe6473151823e48c9e8392c518c9b65a589.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Users\Admin\AppData\Local\Temp\is-R2HA4.tmp\13628a643cba447b05b1aeca92a5dfe6473151823e48c9e8392c518c9b65a589.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-R2HA4.tmp\13628a643cba447b05b1aeca92a5dfe6473151823e48c9e8392c518c9b65a589.tmp" /SL5="$80044,6950053,68096,C:\Users\Admin\AppData\Local\Temp\13628a643cba447b05b1aeca92a5dfe6473151823e48c9e8392c518c9b65a589.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3516
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2204
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1964
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:440
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:4680
          • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
            "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
            3⤵
            • Executes dropped EXE
            PID:5088

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        31a67cb10577d20a96937eec6a9b99bd

        SHA1

        a861888ce00888370a85dc2c7925fb4178aa7a2c

        SHA256

        3db1a59d28b184bacc5ac11a362e5c5293118f5bc7948d51def377474def7ff4

        SHA512

        0ca7b34bdee6a0a12feed7be7bf11cca882233353ae382d221a856007d3a396e73d95f230eab7fb2e1e4e361caee8c6b09cf9a3dd5007b732869f8f63f2b8839

      • C:\Users\Admin\AppData\Local\Temp\is-8TBE6.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-8TBE6.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-R2HA4.tmp\13628a643cba447b05b1aeca92a5dfe6473151823e48c9e8392c518c9b65a589.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/1964-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1964-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1964-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1964-156-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2688-7-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2688-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2688-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2688-161-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3516-8-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/3516-162-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3516-166-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/5088-163-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-182-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/5088-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-168-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-174-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-177-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-180-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-160-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-187-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-191-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-193-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/5088-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-197-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-200-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5088-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB