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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/12/2023, 18:54

General

  • Target

    tuc6.exe

  • Size

    6.9MB

  • MD5

    6c5a4f2eebc29001eda12f0c49130b01

  • SHA1

    94192070ac2679d96433dc9e5162061e5e3e6927

  • SHA256

    c09ba5f9fa4ee85a41c7e0bb204eb8bc0d323265ffccb6829f9531a1b4d92d16

  • SHA512

    e37fb72a44c726826cf01f372449c14aeb288877b64f64331ae83c0d1d22e6b944db624a4a652feb6b805441acf8d887c35078697ef97ce91ba9cbce1fb1c19a

  • SSDEEP

    196608:3Snj/mmV+GsH+bNueuJRAZVAOk5Vvz+tqE9AmEkzj:3SjumV+jHUodIjk5VzfE9Awzj

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\tuc6.exe
    "C:\Users\Admin\AppData\Local\Temp\tuc6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1560
    • C:\Users\Admin\AppData\Local\Temp\is-JDFFO.tmp\tuc6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-JDFFO.tmp\tuc6.tmp" /SL5="$80170,6998999,54272,C:\Users\Admin\AppData\Local\Temp\tuc6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4800
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2488
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3448
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1144
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1620
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4168

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        1.3MB

        MD5

        c00f9544519264f1bbd12a286b758ea4

        SHA1

        779e274d2f63d7baf3e25e13200b577da4fd35d1

        SHA256

        89be4ad59205b02e37c9cf252578a40d04c9ba630665ec2695627d04ed61e71e

        SHA512

        e583c9452dc61f0045a51f0235dd2e7cf10d4fc95c6ca0684b11ba26c26da72628a6ad80e5720cd37a176067619c5a115b01711d8038cad3224136221d05ca5c

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

        Filesize

        1.4MB

        MD5

        c88e2af65d99fe13f77eee7f5784496c

        SHA1

        cf0532e6d68ff50aaca56eeda946c2e1fa434602

        SHA256

        7dfb51b18599637c4078b11ceeb51222bccee330d7302d410e7f9d02ac3ab545

        SHA512

        ede5fd634ec3044e48a36eeacf3d30dbce36c230e84be785e58da48bce1bc185f7f3306986977d1bb3d152d90ab8b5c3f41ee17231d16bcf8e382f9fd5a00e8f

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

        Filesize

        563KB

        MD5

        165899a209d00c143c6c12e6e1338ef3

        SHA1

        6549bf148537b1b000f8d3a0fd4de39d8abe7031

        SHA256

        134644dacfd5a08d9697140067545f564bdb27e7f4fcd79471ebedebefdc51fa

        SHA512

        ae666792bcfad686315ec28622aa4939cc6248fd2c1ba8f853d1ec6d492a91a6d4ae38bdb23ed60639461b2ce2486ea1afb8dd709581204eb5a2611bc5ac9638

      • C:\Users\Admin\AppData\Local\Temp\is-107R6.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-107R6.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-JDFFO.tmp\tuc6.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/1144-180-0x0000000000730000-0x00000000007D1000-memory.dmp

        Filesize

        644KB

      • memory/1144-167-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-208-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-205-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-202-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-198-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-158-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-159-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-195-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-192-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-162-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-189-0x0000000000730000-0x00000000007D1000-memory.dmp

        Filesize

        644KB

      • memory/1144-166-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-188-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-170-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-173-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-176-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-179-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1144-185-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/1560-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1560-160-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1560-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3448-155-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/3448-151-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/3448-152-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4800-10-0x0000000000610000-0x0000000000611000-memory.dmp

        Filesize

        4KB

      • memory/4800-163-0x0000000000610000-0x0000000000611000-memory.dmp

        Filesize

        4KB

      • memory/4800-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB