Analysis

  • max time kernel
    145s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/12/2023, 23:57

General

  • Target

    4c695c3f5cee1d1a3e323a9699a78d9866d0b086ad91410b710a4e091d9478f7.exe

  • Size

    6.9MB

  • MD5

    4d0907805eb1a6a67d2a2369836b9689

  • SHA1

    a7a1c8f237e7498f22f5520d1d25aad90b6033dd

  • SHA256

    4c695c3f5cee1d1a3e323a9699a78d9866d0b086ad91410b710a4e091d9478f7

  • SHA512

    5f657bae4b53d9741c6d0b8512118896214d01e5a4c2bf1ecf02aeb4e54d3f3b8bbeb8ce9861830ae51d8b302fa8fef4d31ad75a112d3590314c364aff7a3922

  • SSDEEP

    196608:aA89BmaeXRdyXFnlUrU7o7Bz3HzNNn1jnNnTfMImG0zj:CBmakyVnlUQ7Wz3Tv1jNTh0zj

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\4c695c3f5cee1d1a3e323a9699a78d9866d0b086ad91410b710a4e091d9478f7.exe
    "C:\Users\Admin\AppData\Local\Temp\4c695c3f5cee1d1a3e323a9699a78d9866d0b086ad91410b710a4e091d9478f7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:796
    • C:\Users\Admin\AppData\Local\Temp\is-RP8TO.tmp\4c695c3f5cee1d1a3e323a9699a78d9866d0b086ad91410b710a4e091d9478f7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RP8TO.tmp\4c695c3f5cee1d1a3e323a9699a78d9866d0b086ad91410b710a4e091d9478f7.tmp" /SL5="$50118,6977575,54272,C:\Users\Admin\AppData\Local\Temp\4c695c3f5cee1d1a3e323a9699a78d9866d0b086ad91410b710a4e091d9478f7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3184
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2916
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4872
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1876
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3364
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:2500

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              2.0MB

              MD5

              dadaa7a86d8035a4177282a57eba7336

              SHA1

              e3292a53060a0b668d1019b30cba4133d3c6f8e4

              SHA256

              262562f2d3ec61e2d8169fa4da2dd907e3c54b446627b4e6f886ef7f938809da

              SHA512

              284ed02f4790c022f92051527fbf6f3a121f88801b067e721e337d7068ae96291029ffb4e2c3c3f317f85b525695de749a98e085404d6bde5f4f47096575e3b3

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

              Filesize

              2.1MB

              MD5

              e9f17707ac869859181f512cd26ce1c9

              SHA1

              da685cce3a07dc0fe302fd2953ef5d682d58ea90

              SHA256

              825adb4cb11c9cfc85c742fee59361140229f5c1319d4430ad4f24d9c1e76ee8

              SHA512

              3863a982e71e4fdb9af798f2c9c92768d1812b0277a00858e48fa7cbced9ae75c9bfe9946bbdf6179343f76cd0cf109793475d7682889492ce0073731ddc7270

            • C:\Users\Admin\AppData\Local\Temp\is-1PLNB.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-1PLNB.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • C:\Users\Admin\AppData\Local\Temp\is-RP8TO.tmp\4c695c3f5cee1d1a3e323a9699a78d9866d0b086ad91410b710a4e091d9478f7.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • memory/796-160-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/796-2-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/796-0-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/1876-180-0x00000000008C0000-0x0000000000962000-memory.dmp

              Filesize

              648KB

            • memory/1876-189-0x00000000008C0000-0x0000000000962000-memory.dmp

              Filesize

              648KB

            • memory/1876-207-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-204-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-157-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-159-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-201-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-198-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-162-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-195-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-166-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-167-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-170-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-173-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-176-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-179-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-192-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-185-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/1876-188-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3184-7-0x0000000002340000-0x0000000002341000-memory.dmp

              Filesize

              4KB

            • memory/3184-163-0x0000000002340000-0x0000000002341000-memory.dmp

              Filesize

              4KB

            • memory/3184-161-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/4872-152-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4872-151-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4872-155-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4872-154-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB