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Analysis

  • max time kernel
    147s
  • 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
    11/12/2023, 00:50

General

  • Target

    5a2cba621413bc94824f010e9c8e3249ef027c54583565ca408cd68d37b7dac9.exe

  • Size

    6.9MB

  • MD5

    7f920e98ce06c4a7254fbca24c12bf84

  • SHA1

    67514940b107d70a8cce8bdd261e48f85e346657

  • SHA256

    5a2cba621413bc94824f010e9c8e3249ef027c54583565ca408cd68d37b7dac9

  • SHA512

    3a98572b6c808e2fb6b435972509915d06e17bcfa46f8ca6abff8da140ebe5320844a04ddbf8066691ce26c51648755fa788d1c1ec4a9e554a9048ee2c165166

  • SSDEEP

    98304:l+koiRLFdsODKUdFxQ8k618KzAYYC9z3Bbgtev25o40nsZJjNw5MQNiEU4P5EKHl:Yz25G6bV1yYDuZxCWQNhUU2uNzj

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\5a2cba621413bc94824f010e9c8e3249ef027c54583565ca408cd68d37b7dac9.exe
    "C:\Users\Admin\AppData\Local\Temp\5a2cba621413bc94824f010e9c8e3249ef027c54583565ca408cd68d37b7dac9.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Users\Admin\AppData\Local\Temp\is-DHFKL.tmp\5a2cba621413bc94824f010e9c8e3249ef027c54583565ca408cd68d37b7dac9.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DHFKL.tmp\5a2cba621413bc94824f010e9c8e3249ef027c54583565ca408cd68d37b7dac9.tmp" /SL5="$60180,6985375,54272,C:\Users\Admin\AppData\Local\Temp\5a2cba621413bc94824f010e9c8e3249ef027c54583565ca408cd68d37b7dac9.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1832
      • C:\Program Files (x86)\CRTGame\crtgame.exe
        "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4184
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 10
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:656
      • C:\Program Files (x86)\CRTGame\crtgame.exe
        "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3760
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4464
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 10
      1⤵
        PID:2236

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        362KB

        MD5

        304633ee66e48fcafd861ea072d7428e

        SHA1

        195e03898730f9be63aa71ba3f83e5056d75a8a2

        SHA256

        ae0f30aa788a39038b2cbf1533e09fe2629aff50a04210700a05d3987de3854d

        SHA512

        ab6c6995af5ca637d911a2e71ec5e3346688e9bedab5ab4fd4a492140cccf5f8e47b990075c6386836cb9ff1d1f11fe1115e927b91fd6d3f0abc09a5f0c5797f

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

        Filesize

        708KB

        MD5

        9974111377e1423862dd04b505f8f3ce

        SHA1

        d2eb76aa53c6e74b4ad6e16f04afb385f56f157e

        SHA256

        ef5c93b2d00ba19ce707f97e4559007dfafbe50e1ee06598c0c96c68c4f80e34

        SHA512

        a00b4fe3e38ffe15da57d07f5a3bcc7c2c8a355947e821a942dcdd944d12e4c2c04f589ea84e718a503ab0c209189c19f887649377fb6bbd69f31bb9488f526b

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

        Filesize

        740KB

        MD5

        5767486ee37bf6dbbdcec6c419180ae7

        SHA1

        366cbd23a1b6ff3ab0ca851113cdef09604c0036

        SHA256

        1d059816bfaee2001860658121346c9077e9838141c22d6831c80bea22457341

        SHA512

        c494824f286713423af7b4caec60c577c04c88a35ba8bd68fc674baad8da9788e7fd3c1e75608e32296d4d6700ba89efd8f64f896cb8dfb3255e95198fae6303

      • C:\Users\Admin\AppData\Local\Temp\is-DHFKL.tmp\5a2cba621413bc94824f010e9c8e3249ef027c54583565ca408cd68d37b7dac9.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-ATRK0.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-ATRK0.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1832-13-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/1832-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/1832-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3760-152-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/3760-155-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/3760-154-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/3760-151-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-161-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-181-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-158-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-208-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-205-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-165-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-166-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-169-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-172-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-175-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-176-0x0000000000780000-0x0000000000821000-memory.dmp

        Filesize

        644KB

      • memory/4184-201-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-182-0x0000000000780000-0x0000000000821000-memory.dmp

        Filesize

        644KB

      • memory/4184-185-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-188-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-189-0x0000000000780000-0x0000000000821000-memory.dmp

        Filesize

        644KB

      • memory/4184-192-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-195-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4184-198-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4928-159-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4928-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4928-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB