Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2023 01:54

General

  • Target

    35f4f4a03ced2d02638291480e92ef7b.exe

  • Size

    6.9MB

  • MD5

    35f4f4a03ced2d02638291480e92ef7b

  • SHA1

    615d16a4e356962fa5593cfa5ec1a1adc4c88432

  • SHA256

    025405e707794fe5ca958897fad342771ec3748f60ab4bc4ae9ac2989a3a8fea

  • SHA512

    f1946e14e63351c28c8214f01d72a4a2ddb03c32f5426c7ebef578be3f092c3ae906a429687f4043171632e8773c9a23bee7e668d87d0acd31fd22b0489d47a6

  • SSDEEP

    196608:pxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:PNztzQlcDPXus98d9Jzj

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\35f4f4a03ced2d02638291480e92ef7b.exe
    "C:\Users\Admin\AppData\Local\Temp\35f4f4a03ced2d02638291480e92ef7b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Users\Admin\AppData\Local\Temp\is-TDQNA.tmp\35f4f4a03ced2d02638291480e92ef7b.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-TDQNA.tmp\35f4f4a03ced2d02638291480e92ef7b.tmp" /SL5="$7022E,7025884,54272,C:\Users\Admin\AppData\Local\Temp\35f4f4a03ced2d02638291480e92ef7b.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:624
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1192
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2352
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:2856
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1424
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:1712

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        2.1MB

        MD5

        3362bac458070e33d0cabcda1e4b735c

        SHA1

        76ac1f5b96667d9621eedd92ab0704b9c7a129b0

        SHA256

        4dbfd9df16a57d8ff7a00a378fe737efc179f53f2ce975daeaedbaa6ab8bcecd

        SHA512

        59ed8a9d16e100ad91d98ad3a08eabe148234633e59bfb4bef1b63e5a54c3e63193f088ad1538c4898a7a6ac5ead65a2e244ae64bc5325bbf87e763474c5a5ce

      • C:\Users\Admin\AppData\Local\Temp\is-Q6R6H.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-Q6R6H.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-TDQNA.tmp\35f4f4a03ced2d02638291480e92ef7b.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/624-160-0x00000000021F0000-0x00000000021F1000-memory.dmp

        Filesize

        4KB

      • memory/624-11-0x00000000021F0000-0x00000000021F1000-memory.dmp

        Filesize

        4KB

      • memory/624-158-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2352-150-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2352-151-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2352-153-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2548-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2548-157-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2856-163-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-182-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-156-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-164-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-167-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-170-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-173-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-176-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-177-0x0000000000880000-0x0000000000922000-memory.dmp

        Filesize

        648KB

      • memory/2856-159-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-185-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-186-0x0000000000880000-0x0000000000922000-memory.dmp

        Filesize

        648KB

      • memory/2856-189-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-192-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-195-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-198-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-201-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2856-204-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB