Analysis

  • max time kernel
    134s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231201-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231201-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2023 08:21

General

  • Target

    66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74.exe

  • Size

    6.9MB

  • MD5

    4c8409372e7ef14da739f53e19089d57

  • SHA1

    d936a6f07a7204ac629fbd58429f54bdb32038f3

  • SHA256

    66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74

  • SHA512

    77923badc1283f27641f6744f6be1df632923e81ddab9ebaf99f1ecebe0c3ca8be7732cb7b1bd52d4c5bd6ea8e568d44df71eaf307eb8ea656d0dc78363c910c

  • SSDEEP

    196608:wH/2cOhoGEpX+jRFRvz29jgM7+3Utny3r/mvZO0agzj:lcOhoGE1ArRvqlgM7xtAT0Hzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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\66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74.exe
    "C:\Users\Admin\AppData\Local\Temp\66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2412
    • C:\Users\Admin\AppData\Local\Temp\is-P78NA.tmp\66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-P78NA.tmp\66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74.tmp" /SL5="$50062,6982471,68096,C:\Users\Admin\AppData\Local\Temp\66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2852
      • C:\Program Files (x86)\WMAFormat\wmaformat.exe
        "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3460
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 11
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4548
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 11
          4⤵
            PID:1804
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1824
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Query
          3⤵
            PID:4712

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        368KB

        MD5

        b82cd2eb7a1ed8384ce0c540d3527e21

        SHA1

        8383d550cb2f4684c9ecf2b33f5309e0ca832ae3

        SHA256

        c54be4c27352f35f990f74d46459107e47f95baee81f334db281bde152a5e098

        SHA512

        11c0033f330d8be1b3f0c59805dab71215a3f548e8ed81f033d5c07309e24b4f682961ca3146bfb1a550fb02da3625e3ffdda12b9f13cf7facafcd257525502a

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

        Filesize

        404KB

        MD5

        0d155294b0095400052c573cb3e46753

        SHA1

        3d1ca9c9d93f6d42e6a3301c5afaabf33e0093c9

        SHA256

        29bc6fc2e30d0e8f08bbd5bfa217556372eda05398b5c4d98a30c27f756292e2

        SHA512

        377b945e280b696dc465f07a0b0fb3e77a7d058a549a31ab5654906e718d3ea6e5bb48959025bcd8a9d3f7a8823a579a9b0bb3fbb1aa0f1b2b10dcb2491f3b28

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

        Filesize

        16KB

        MD5

        94df274e03f84fe8ceaeae957445f24b

        SHA1

        b8484a5cb7f94f3b4893e9576a944292a587ac64

        SHA256

        1aecb610c9d8cdb88ea868a2d7dfff9a6f973aa1fa64746f06cd9851031e4060

        SHA512

        6e1c444618d1c21fc85566371868d89175eb62803674b991d6403ab1b88a5f92f4e48dc11a16372872bfc6fd19f0379b4111fc359b1c8dab81ffd95d6353b720

      • C:\Users\Admin\AppData\Local\Temp\is-6Q12N.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-6Q12N.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-P78NA.tmp\66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74.tmp

        Filesize

        490KB

        MD5

        358c13bf6c40a21c47c33382661bd60c

        SHA1

        cd13ab3c9005c36303a949b890de0561a7e1ee37

        SHA256

        708c4c64e8692f3dd2ca555ddfd9f100253761cc477fde9ecc04146ec638458f

        SHA512

        449e763b5816f01660f452980f4fd74cadc66211c561b1ba89906d7cd8a17fa6f6d3bac4ff8ef4e8df52298476f6c39ed489322ff75cc3e156ed974fa946222b

      • C:\Users\Admin\AppData\Local\Temp\is-P78NA.tmp\66c655ade2482c9d8a445cf2da6a0917fd4302a7c7ed5c06e682642fdadd9b74.tmp

        Filesize

        597KB

        MD5

        0281513dd089cfb1e5eec959791fdaaa

        SHA1

        0a4cb585819844823db7615ef63e3323376c1f1d

        SHA256

        0903b6dab15ace3d912429b366bfca1e65219809a0ad18147b8d17b92d00dc4b

        SHA512

        b8e812a66bdd3e20c6e6c5864e91400f04a75f6b58bc8cd6da498d187b9226c2e4e20bc82fdfb99a712a6616f93dc32150492eed6ea77be6b85f65e6c0658a14

      • memory/1824-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1824-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1824-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1824-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2412-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2412-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2412-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2852-162-0x0000000000650000-0x0000000000651000-memory.dmp

        Filesize

        4KB

      • memory/2852-10-0x0000000000650000-0x0000000000651000-memory.dmp

        Filesize

        4KB

      • memory/2852-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3460-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-188-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-177-0x00000000026C0000-0x000000000275E000-memory.dmp

        Filesize

        632KB

      • memory/3460-181-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-182-0x00000000026C0000-0x000000000275E000-memory.dmp

        Filesize

        632KB

      • memory/3460-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-189-0x00000000026C0000-0x000000000275E000-memory.dmp

        Filesize

        632KB

      • memory/3460-192-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-201-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-204-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3460-205-0x00000000026C0000-0x000000000275E000-memory.dmp

        Filesize

        632KB

      • memory/3460-206-0x00000000026C0000-0x000000000275E000-memory.dmp

        Filesize

        632KB

      • memory/3460-210-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB