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Analysis

  • max time kernel
    147s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-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 6 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 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tuc6.exe
    "C:\Users\Admin\AppData\Local\Temp\tuc6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2124
    • C:\Users\Admin\AppData\Local\Temp\is-HE97V.tmp\tuc6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HE97V.tmp\tuc6.tmp" /SL5="$400F4,6998999,54272,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:740
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1676
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2732
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:760
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:2700
          • C:\Program Files (x86)\CRTGame\crtgame.exe
            "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
            3⤵
            • Executes dropped EXE
            PID:2860

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.6MB

        MD5

        b9f56a1ea375007348e43a5db00b393e

        SHA1

        94c73b2eacaf2a2936dd2c59460351ac571e4c73

        SHA256

        b867fcd8ea2d362a05ea48fd95681d8d37b9bdef36f2fffbd3f4313b376244dd

        SHA512

        9b173838cc902444d0ee48cfabecbcb76955363e9086010ed0f4def5c1a3293ec48feba668f2006a8167b93899530b7920a5b01ceb22d73fb3527fcd866e4182

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

        Filesize

        2.1MB

        MD5

        2415393d2f2fa86c044408d5132cf85b

        SHA1

        fff07515e83a6b54776dab3846e968040708e169

        SHA256

        823e49580058cc0fa454127299a9fa01a74781707deda9ac92d7be62637d6abc

        SHA512

        af9e3d93e650e0b301cd8ed838c56f091869c5468b0aaa262f6dbadc413901890362ba5d836cd406319403c35f50b35cd863c83318edb355cb294d53f0b95eaa

      • \Users\Admin\AppData\Local\Temp\is-2IFC9.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-2IFC9.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • \Users\Admin\AppData\Local\Temp\is-2IFC9.tmp\_isetup\_shfoldr.dll

        Filesize

        22KB

        MD5

        92dc6ef532fbb4a5c3201469a5b5eb63

        SHA1

        3e89ff837147c16b4e41c30d6c796374e0b8e62c

        SHA256

        9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

        SHA512

        9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

      • \Users\Admin\AppData\Local\Temp\is-HE97V.tmp\tuc6.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/740-8-0x0000000000240000-0x0000000000241000-memory.dmp

        Filesize

        4KB

      • memory/740-151-0x0000000003540000-0x000000000375B000-memory.dmp

        Filesize

        2.1MB

      • memory/740-166-0x0000000003540000-0x000000000375B000-memory.dmp

        Filesize

        2.1MB

      • memory/740-165-0x0000000000240000-0x0000000000241000-memory.dmp

        Filesize

        4KB

      • memory/740-164-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2124-1-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2124-163-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2732-154-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2732-157-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2732-153-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2732-158-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-178-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-184-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-167-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-170-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-171-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-174-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-175-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-162-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-181-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-160-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-186-0x0000000002570000-0x0000000002611000-memory.dmp

        Filesize

        644KB

      • memory/2860-191-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-194-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-197-0x0000000002570000-0x0000000002611000-memory.dmp

        Filesize

        644KB

      • memory/2860-198-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-201-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-204-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-207-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-211-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/2860-214-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB