Analysis

  • max time kernel
    145s
  • max time network
    131s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/12/2023, 22:33

General

  • Target

    49312659d4fd6c550e4b9812270c6f1c39effc5e5789011ec3fb040c946244c4.exe

  • Size

    6.9MB

  • MD5

    aa1b8df3d0108438a0fbaf8e8f2b9508

  • SHA1

    2c12c7274ad7757b4223572e4537c70a1389c156

  • SHA256

    49312659d4fd6c550e4b9812270c6f1c39effc5e5789011ec3fb040c946244c4

  • SHA512

    3098bd1bd3b5d0f9017c2f65d5285b66a0bfcbc5031aa0b559a82490f8d80c8f9add156dc6cc6b05fdde0642e81c07d4fd588538a02f5db24790ff5603c667ae

  • SSDEEP

    196608:0A89BmaeXRdyXFnlUrU7o7Bz3HzNNn1jnNnTfMImG0zj:4BmakyVnlUQ7Wz3Tv1jNTh0zj

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\49312659d4fd6c550e4b9812270c6f1c39effc5e5789011ec3fb040c946244c4.exe
    "C:\Users\Admin\AppData\Local\Temp\49312659d4fd6c550e4b9812270c6f1c39effc5e5789011ec3fb040c946244c4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4352
    • C:\Users\Admin\AppData\Local\Temp\is-BQCBD.tmp\49312659d4fd6c550e4b9812270c6f1c39effc5e5789011ec3fb040c946244c4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-BQCBD.tmp\49312659d4fd6c550e4b9812270c6f1c39effc5e5789011ec3fb040c946244c4.tmp" /SL5="$B01E0,6977575,54272,C:\Users\Admin\AppData\Local\Temp\49312659d4fd6c550e4b9812270c6f1c39effc5e5789011ec3fb040c946244c4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1288
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4712
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4108
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3916
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4916
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:5036

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • 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-BQCBD.tmp\49312659d4fd6c550e4b9812270c6f1c39effc5e5789011ec3fb040c946244c4.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • \Users\Admin\AppData\Local\Temp\is-JE8TD.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-JE8TD.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/1288-161-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/1288-7-0x00000000020B0000-0x00000000020B1000-memory.dmp

              Filesize

              4KB

            • memory/1288-163-0x00000000020B0000-0x00000000020B1000-memory.dmp

              Filesize

              4KB

            • memory/3916-179-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-173-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-157-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-159-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-208-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-205-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-162-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-202-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-166-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-167-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-170-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-198-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-176-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-180-0x00000000008C0000-0x0000000000962000-memory.dmp

              Filesize

              648KB

            • memory/3916-195-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-185-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-188-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3916-189-0x00000000008C0000-0x0000000000962000-memory.dmp

              Filesize

              648KB

            • memory/3916-192-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4108-154-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4108-151-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4108-152-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4352-1-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/4352-160-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB