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Analysis

  • max time kernel
    143s
  • max time network
    131s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 05:15

General

  • Target

    df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da.exe

  • Size

    6.9MB

  • MD5

    30324adb557ca277e6125a079c8dd66c

  • SHA1

    a85602c0458776f1768b4371d369681257c9e445

  • SHA256

    df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da

  • SHA512

    484696a3738fb550b0deebd8de69db255d40e38dfe74df51d66ffae352a1e86894d36358c24261067a665a5a64c261b9c5c7d9128e60b3f3f3276d2fb07d8542

  • SSDEEP

    98304:DzyQ4kc+v4jvDhsQepuwmrkz216aPE8d9X+X1M2CX27eGqc6hxTGZtsAzFjTidLb:SQ4PTP94zHQ9OX1M2CGjn6hDc6LKEzj

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\df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da.exe
    "C:\Users\Admin\AppData\Local\Temp\df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:520
    • C:\Users\Admin\AppData\Local\Temp\is-PA3EE.tmp\df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-PA3EE.tmp\df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da.tmp" /SL5="$50232,6985458,68096,C:\Users\Admin\AppData\Local\Temp\df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:640
      • C:\Program Files (x86)\WMAFormat\wmaformat.exe
        "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4464
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 11
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3892
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 11
          4⤵
            PID:3196
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4256
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Query
          3⤵
            PID:4876

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        179KB

        MD5

        53e525ce3a08a3f233e2ff4642b92f67

        SHA1

        442498db4a9ecd3a76d806b8a5b91900c53df4c4

        SHA256

        806db68631b806969a774d94c66d75d741f7190a878eaf3a416f85c342c77415

        SHA512

        f2194081ee3d7752bdf6dd1fe37b0739b192e98e50d75c6ebe6dd4e6f5c340adba684ddff012ec03987f5297cdaf03e4d453a7ae28f4362b385abeff398e86cb

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

        Filesize

        283KB

        MD5

        c19b486e35b115f865cad2440cdb7334

        SHA1

        5b30b9e2ea591ba4da6ccda6911901f865f36ea5

        SHA256

        17564975cbfef01fbb9b0d9af16b86bb736c2873e3bcc0548b8a485d36aaf8e0

        SHA512

        3e577ee3dc5eb1cf1ebd8a343319a3582cdbfbd74719f9ee77ca4a85513ce97445606262557f75672475a7ee3ad059c640f367cc10ac8c69568b9c38dc5611db

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

        Filesize

        222KB

        MD5

        1880b7c4c55b12defe6aa409d40e4803

        SHA1

        f59165e73048d0ad3a2a54fb73ee0d361c822327

        SHA256

        cf912fc7902a598865898fe1f6f5aaffa9331451fc61fdf733db2428117a8079

        SHA512

        391057626c176aafc6ac0c380935851c4ead2272f47ead9f022495c36dcdf2090a7496bb81c6c82f39488b19c709bb419d9337b4b0373d5f3374ef2f69d46277

      • C:\Users\Admin\AppData\Local\Temp\is-PA3EE.tmp\df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da.tmp

        Filesize

        427KB

        MD5

        ad93a1040e1da8b93a75e3d1a9b4331f

        SHA1

        3646d0278f7255822e8b0c71e4aebdb545bb5073

        SHA256

        4ef9b9bf82626214e67a0a41474684d24ddf98d3033ffd12726933c7ab7d586b

        SHA512

        a9c6f8e657cc57eab8ceb57cb04f4f42d098a817d4d07c0b90788bbacd3b038dac9bb21b353ea412ba64dc176f4fe3d60c78d77ce19a41b3d4319c1fb131cb86

      • C:\Users\Admin\AppData\Local\Temp\is-PA3EE.tmp\df9ef89b82e05e0980bdba1599c0da9ff36510a891d6d3b72f4b9873df6675da.tmp

        Filesize

        503KB

        MD5

        b0e41bfeae83ede9dad4923f43527d64

        SHA1

        5519b660b2726c80cac5f56f10ea2b20c501c3ac

        SHA256

        9abad2b4ad10ee87396c63539b2f0ffeb419bc06c53c7b75fb4b21c8bd3f33e9

        SHA512

        0fe3440c1f7fbe6528c181761e7a3949c3cdfb070f810e8d8eb875fd2c0e1c1a47628dfcb5abdad1fa1100b3982b27902042bb7170f839bef2331be567c59bc7

      • \Users\Admin\AppData\Local\Temp\is-59C1F.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-59C1F.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/520-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/520-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/520-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/640-8-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/640-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/640-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4256-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4256-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4256-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-183-0x00000000008E0000-0x000000000097E000-memory.dmp

        Filesize

        632KB

      • memory/4464-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-179-0x00000000008E0000-0x000000000097E000-memory.dmp

        Filesize

        632KB

      • memory/4464-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-180-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-190-0x00000000008E0000-0x000000000097E000-memory.dmp

        Filesize

        632KB

      • memory/4464-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-202-0x00000000008E0000-0x000000000097E000-memory.dmp

        Filesize

        632KB

      • memory/4464-203-0x00000000008E0000-0x000000000097E000-memory.dmp

        Filesize

        632KB

      • memory/4464-204-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4464-211-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB