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 21:54

General

  • Target

    e3a0af27635db10d9c2c5f2b84a2d99011e07ab0eafbe43eb2c7e5cfacb0e4ae.exe

  • Size

    6.9MB

  • MD5

    03ea0acc3151d60a9c74a788edeb0c78

  • SHA1

    adbc6203f35f6e39b50934fd4e6076a07b7b6916

  • SHA256

    e3a0af27635db10d9c2c5f2b84a2d99011e07ab0eafbe43eb2c7e5cfacb0e4ae

  • SHA512

    af3a0ce2ce42eec85c9ac745a80e8ba99fbc0b9c96241deb4d928e097293f7a5cd2940f147359ec98c5211fd27a8a29429535552054d346f06974473f6dcf9cf

  • SSDEEP

    196608:JK2+nNevvWstwr2m5BmycyEbSfasepd5e4x6+AjZ6mjxzj:JDY6tiP3myRfzepXe4ny8gxzj

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\e3a0af27635db10d9c2c5f2b84a2d99011e07ab0eafbe43eb2c7e5cfacb0e4ae.exe
    "C:\Users\Admin\AppData\Local\Temp\e3a0af27635db10d9c2c5f2b84a2d99011e07ab0eafbe43eb2c7e5cfacb0e4ae.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4412
    • C:\Users\Admin\AppData\Local\Temp\is-HVBHS.tmp\e3a0af27635db10d9c2c5f2b84a2d99011e07ab0eafbe43eb2c7e5cfacb0e4ae.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HVBHS.tmp\e3a0af27635db10d9c2c5f2b84a2d99011e07ab0eafbe43eb2c7e5cfacb0e4ae.tmp" /SL5="$5021E,6991381,54272,C:\Users\Admin\AppData\Local\Temp\e3a0af27635db10d9c2c5f2b84a2d99011e07ab0eafbe43eb2c7e5cfacb0e4ae.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3836
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2184
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4548
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1800
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:3912
          • C:\Program Files (x86)\CRTGame\crtgame.exe
            "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
            3⤵
            • Executes dropped EXE
            PID:4528

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        576KB

        MD5

        a9015068165e82dda9f1be6c617df8dc

        SHA1

        2d8dcbd6c270e081007bc49fb29be04d83b8bf46

        SHA256

        c09b73053b75573fee3b589381763dc45df82b33c4758a52a46e7e4ca03ed1df

        SHA512

        0fbaecaadbf9e06f1f9146f9691dd002acafda02bad6b196e34e29afd7d5e5b8b9d9055e852d0a2ad491ce353b792ad359df0cb19bd96083cadac489f6530aa1

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

        Filesize

        640KB

        MD5

        44f3f7b3b2511af43f8e360bdba83c7e

        SHA1

        827d0c3431f30e9988064baed41e8c3cf1e88426

        SHA256

        8c40484c68bbc505ed17294b910ed8b5429589d0dadf7224608e63e63d441654

        SHA512

        047d31ab901166b03c31bf74b97c115585d5c39b7f21ac35cac4d718c0a06051aea032947bea3413e229e22a88317c6050b3c921fa5bd9383d5e1c702e8e346f

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

        Filesize

        2.1MB

        MD5

        bb0124f16d88c4ec1fcfd9e524a5b921

        SHA1

        5017dc7277dbc5bb0b6f8428e4ff72603e3a370b

        SHA256

        59495c6e79c301f767f3d336050fb9927826f0ae972d634d395f5b44d7280a09

        SHA512

        4be3e838fb41cd4d01a12b639cdcb93df94deec0debd2593c53bbfe977daf5bcb9e3f97f6c47d33e76aea12ae2f9224f27652dfb5b5a69f53d201184766fff91

      • C:\Users\Admin\AppData\Local\Temp\is-HVBHS.tmp\e3a0af27635db10d9c2c5f2b84a2d99011e07ab0eafbe43eb2c7e5cfacb0e4ae.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-BD48A.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-BD48A.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/3836-10-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3836-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3836-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4412-1-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4412-160-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4528-180-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-189-0x0000000000950000-0x00000000009F2000-memory.dmp

        Filesize

        648KB

      • memory/4528-159-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-208-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-205-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-162-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-202-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-166-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-167-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-170-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-173-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-176-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-179-0x0000000000950000-0x00000000009F2000-memory.dmp

        Filesize

        648KB

      • memory/4528-198-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-185-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-188-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-157-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-192-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4528-195-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4548-151-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4548-152-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4548-153-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4548-155-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB