Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10-12-2023 19:17

General

  • Target

    703f41fa40a79fd3e3ee435bb046d62d97acb3226644f3a852a92bfc5c426520.exe

  • Size

    6.9MB

  • MD5

    1137e65885826d7bb40713366aad8e00

  • SHA1

    c56fceeed4c8e6601d3e12b92ad0a6c4870ed0bf

  • SHA256

    703f41fa40a79fd3e3ee435bb046d62d97acb3226644f3a852a92bfc5c426520

  • SHA512

    0234ddb72463fb5c3f09100a3dac6839aa822b7f8efbac083f75fa6eeaf3d8a78487129a5e3ee3efd0cbb4ae7977a97566bcc19139388396f853505f9f84021e

  • SSDEEP

    196608:PK2+nNevvWstwr2m5BmycyEbSfasepd5e4x6+AjZ6mjxzj:PDY6tiP3myRfzepXe4ny8gxzj

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\703f41fa40a79fd3e3ee435bb046d62d97acb3226644f3a852a92bfc5c426520.exe
    "C:\Users\Admin\AppData\Local\Temp\703f41fa40a79fd3e3ee435bb046d62d97acb3226644f3a852a92bfc5c426520.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3804
    • C:\Users\Admin\AppData\Local\Temp\is-0LCHE.tmp\703f41fa40a79fd3e3ee435bb046d62d97acb3226644f3a852a92bfc5c426520.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0LCHE.tmp\703f41fa40a79fd3e3ee435bb046d62d97acb3226644f3a852a92bfc5c426520.tmp" /SL5="$5022E,6991381,54272,C:\Users\Admin\AppData\Local\Temp\703f41fa40a79fd3e3ee435bb046d62d97acb3226644f3a852a92bfc5c426520.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3840
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:428
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4140
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:2360
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2844
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4320

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        2.1MB

        MD5

        bb0124f16d88c4ec1fcfd9e524a5b921

        SHA1

        5017dc7277dbc5bb0b6f8428e4ff72603e3a370b

        SHA256

        59495c6e79c301f767f3d336050fb9927826f0ae972d634d395f5b44d7280a09

        SHA512

        4be3e838fb41cd4d01a12b639cdcb93df94deec0debd2593c53bbfe977daf5bcb9e3f97f6c47d33e76aea12ae2f9224f27652dfb5b5a69f53d201184766fff91

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

        Filesize

        1.1MB

        MD5

        5d4b36f498aae24060d1350c32134f26

        SHA1

        bf56c34e099be32f716e511dc8727cda49775feb

        SHA256

        fa9a153fdbacf1ee06c4b7ee8041b6413ed82391a139c79b3e52f623faa81e13

        SHA512

        446900b004c82364cc6776babeaff5b280ec7adb1f5aa148593c828ea321ddac7a0a447a01efa77662ad5a1fdff89c6c65ef92cae575c3198765640922c3b09c

      • C:\Users\Admin\AppData\Local\Temp\is-0LCHE.tmp\703f41fa40a79fd3e3ee435bb046d62d97acb3226644f3a852a92bfc5c426520.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-E84SR.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-E84SR.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/2360-189-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-170-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-211-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-208-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-204-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-203-0x0000000000940000-0x00000000009E2000-memory.dmp

        Filesize

        648KB

      • memory/2360-202-0x0000000000940000-0x00000000009E2000-memory.dmp

        Filesize

        648KB

      • memory/2360-158-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-159-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-199-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-196-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-162-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-193-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-166-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-167-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-190-0x0000000000940000-0x00000000009E2000-memory.dmp

        Filesize

        648KB

      • memory/2360-173-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-176-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-179-0x0000000000940000-0x00000000009E2000-memory.dmp

        Filesize

        648KB

      • memory/2360-180-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/2360-183-0x0000000000940000-0x00000000009E2000-memory.dmp

        Filesize

        648KB

      • memory/2360-186-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/3804-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3804-160-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3804-3-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3840-10-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3840-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3840-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4140-154-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4140-155-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4140-152-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4140-151-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB