Analysis

  • max time kernel
    146s
  • max time network
    149s
  • 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, 15:00

General

  • Target

    d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128.exe

  • Size

    6.9MB

  • MD5

    a6d63a1461aa7ef65a75f038fda63b93

  • SHA1

    06d87bd3c37f5194367546201922a1a012a5c452

  • SHA256

    d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128

  • SHA512

    4639834dc5b783f81576b829ea1fbe2696f13df8f1bd5ae2b242b4060845c73c7b9bf0bfeb669334e516e1cd94b73533b4f3559a327f944405726257f1f9c19a

  • SSDEEP

    196608:BxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:qjkHxfKTnJjzKkRtF9zj

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\d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128.exe
    "C:\Users\Admin\AppData\Local\Temp\d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3432
    • C:\Users\Admin\AppData\Local\Temp\is-UVT7R.tmp\d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-UVT7R.tmp\d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128.tmp" /SL5="$50066,6950053,68096,C:\Users\Admin\AppData\Local\Temp\d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4752
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:5064
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:316
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4636
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4920
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:2028

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

        Filesize

        1.5MB

        MD5

        e2a7492d6977490f834bb643dd35139c

        SHA1

        81c00cb55d0836a483d6b6d243bea4671b65377c

        SHA256

        5a348d7171ee30e3777627fa8a022c2a112bc5c578edf16d8a9e6c9f33331e9a

        SHA512

        b68bfe0baf2ca5dcf27dd6984f4ae526acbf7f2d1685d09d6f1a69db547932bd6f2041b50e42cdb8947d54e98013e0643b68c0fc366ad3eced221b5dad7c1867

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

        Filesize

        1.3MB

        MD5

        58ed66be34423f3039f15866e3ee8dc4

        SHA1

        8e06e022baccb843c0eb2199f22ac783fb47b69e

        SHA256

        02281246d51e3a8689b9899872d8c6e7cddd2d50d0e9f93e2bf574f34fd52b9f

        SHA512

        4dabf66d7a26783213e0a8b3f9f0bc41ca04aee517cdad7aadf1eba0d9c6001abe149b205309ef5aad0424be2cc5a08cbcb5a8ff76b8c141f58511da1e6f64d6

      • C:\Users\Admin\AppData\Local\Temp\is-RKLF1.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-RKLF1.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-UVT7R.tmp\d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • C:\Users\Admin\AppData\Local\Temp\is-UVT7R.tmp\d5ff915fa5a1e484a9ad9baf0a1db405f5642e3d90515bf71e2e143a6b483128.tmp

        Filesize

        364KB

        MD5

        67fb96e39cb40e34f648ad00f76e5b16

        SHA1

        aeebe53878c535de95ecc7e7a98f9d1dea8b9532

        SHA256

        a496759b7430fa48829a402c6d93cb7a35e3c74c9981367e061f4e893ad3dc70

        SHA512

        4ab4e8a445c83e992ac116845924bafc76e6b4469de35eab291f5f3879f3fe200b4248bd985358a5211cc95497174762e387570c8423f8ca2e1520414859700d

      • memory/316-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/316-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/316-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/316-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3432-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3432-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3432-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4636-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-207-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-204-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-201-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-180-0x00000000007B0000-0x000000000084E000-memory.dmp

        Filesize

        632KB

      • memory/4636-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-188-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-189-0x00000000007B0000-0x000000000084E000-memory.dmp

        Filesize

        632KB

      • memory/4636-192-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4752-163-0x0000000000750000-0x0000000000751000-memory.dmp

        Filesize

        4KB

      • memory/4752-10-0x0000000000750000-0x0000000000751000-memory.dmp

        Filesize

        4KB

      • memory/4752-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB