Analysis

  • max time kernel
    141s
  • max time network
    143s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11-12-2023 04:38

General

  • Target

    776d8b0234804d0bc7a61832ba36693b2432a1877a5d9751e1ff5387a51b36e3.exe

  • Size

    6.9MB

  • MD5

    cab810625be982019737c7a2eebde348

  • SHA1

    815ce53b8e080978c1947362572bb81ca8e180bf

  • SHA256

    776d8b0234804d0bc7a61832ba36693b2432a1877a5d9751e1ff5387a51b36e3

  • SHA512

    26e9800a7712298a8a622b272dcbcbd06952bd28cf94057edf6dc151d5ea0f8c467df93561037fc9674369aac09b164a9648efb1ca5c8e88fa95fd9c6c775ffc

  • SSDEEP

    196608:mSnj/mmV+GsH+bNueuJRAZVAOk5Vvz+tqE9AmEkzj:mSjumV+jHUodIjk5VzfE9Awzj

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\776d8b0234804d0bc7a61832ba36693b2432a1877a5d9751e1ff5387a51b36e3.exe
    "C:\Users\Admin\AppData\Local\Temp\776d8b0234804d0bc7a61832ba36693b2432a1877a5d9751e1ff5387a51b36e3.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3208
    • C:\Users\Admin\AppData\Local\Temp\is-5SRKR.tmp\776d8b0234804d0bc7a61832ba36693b2432a1877a5d9751e1ff5387a51b36e3.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-5SRKR.tmp\776d8b0234804d0bc7a61832ba36693b2432a1877a5d9751e1ff5387a51b36e3.tmp" /SL5="$70200,6998999,54272,C:\Users\Admin\AppData\Local\Temp\776d8b0234804d0bc7a61832ba36693b2432a1877a5d9751e1ff5387a51b36e3.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3192
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:596
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4760
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1128
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:656
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 10
      1⤵
        PID:4480

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        1.8MB

        MD5

        dc60a5a4fa001f8048709a7250fe1eab

        SHA1

        4c3a70f607fce3bfe6b7e31acf517c303848a860

        SHA256

        6a1c9ab4c9515510f0a0599154155c43dcfccb3940a7fd0ff988ee5d166fa597

        SHA512

        59eac22be993fb94dbc56d32fc8a64a051ab4fce34776ab4b0f6bfe2f151250a2493014b8f21a4aadf69b2331f27a51c7bbf326f1a8aab6ef544f5a1b5e053b0

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        2.1MB

        MD5

        2415393d2f2fa86c044408d5132cf85b

        SHA1

        fff07515e83a6b54776dab3846e968040708e169

        SHA256

        823e49580058cc0fa454127299a9fa01a74781707deda9ac92d7be62637d6abc

        SHA512

        af9e3d93e650e0b301cd8ed838c56f091869c5468b0aaa262f6dbadc413901890362ba5d836cd406319403c35f50b35cd863c83318edb355cb294d53f0b95eaa

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        1.3MB

        MD5

        d913150136410d3c4c847ed33f690822

        SHA1

        5e285bd75fbabe1d6c7964a6b54978c7615d751e

        SHA256

        b4dff9f4420f0b40be60198dc9ef2454c5348c294e41374965b46e771a508aed

        SHA512

        5d9fdb73bea1d5d89e7958c7c813937dc0bc4bc007e323a58eb39d97ac6eb96f5a9c7d53af87a893d7f04d338117617321c0633cafdd85629ce6765cbf10797b

      • C:\Users\Admin\AppData\Local\Temp\is-5SRKR.tmp\776d8b0234804d0bc7a61832ba36693b2432a1877a5d9751e1ff5387a51b36e3.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-397K7.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-397K7.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1128-158-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-161-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-198-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-204-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-195-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-208-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-185-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-192-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-189-0x0000000000730000-0x00000000007D1000-memory.dmp

        Filesize

        644KB

      • memory/1128-201-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-188-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-165-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-166-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-169-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-172-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-175-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1128-178-0x0000000000730000-0x00000000007D1000-memory.dmp

        Filesize

        644KB

      • memory/1128-182-0x0000000000730000-0x00000000007D1000-memory.dmp

        Filesize

        644KB

      • memory/1128-179-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/3192-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3192-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3192-10-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3208-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3208-159-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3208-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4760-155-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4760-151-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4760-152-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB