Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 20:21

General

  • Target

    tuc3.exe

  • Size

    6.9MB

  • MD5

    5dc26d87f76b3a2a534035847a027f60

  • SHA1

    6d0d1874f45df1f85ecf8a993a86d83f0325c926

  • SHA256

    e9b97a927e25832626d4b8476119733639c1349da154a7ba96ffa5ab20b309ca

  • SHA512

    a4f018e587d44a53f3af7d2e115f48b4a1baa29abe63cc006de64a79a67fd4ca757ee0b6298d9a1e9c232acae9a0bf38db9c8cd47c833d25b5f6a7ce0a7a9c27

  • SSDEEP

    196608:UK2+nNevvWstwr2m5BmycyEbSfasepd5e4x6+AjZ6mjxzj:UDY6tiP3myRfzepXe4ny8gxzj

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\tuc3.exe
    "C:\Users\Admin\AppData\Local\Temp\tuc3.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Users\Admin\AppData\Local\Temp\is-MSJ9N.tmp\tuc3.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-MSJ9N.tmp\tuc3.tmp" /SL5="$B0060,6991381,54272,C:\Users\Admin\AppData\Local\Temp\tuc3.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4760
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4456
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3292
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4696
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4416
          • C:\Program Files (x86)\CRTGame\crtgame.exe
            "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
            3⤵
            • Executes dropped EXE
            PID:4812

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        987KB

        MD5

        b94e39283e0b6d33d109d4a4f5aed868

        SHA1

        c31397ac336c213d030d376b3bd0b4287a94bc75

        SHA256

        1a1e5dc644f21c61179d002818710d8c9b667170fc35c84c7983897dd195f478

        SHA512

        aab6d715d03f952ac2f153049c7bc78114c56771fa38edf85e46c3a095c4b9aefe2401e8af19f71ae773f88863c0d6d9e24d71d2b489362884f22cd78e47f427

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

        Filesize

        1.1MB

        MD5

        22b250a13570316583953b5cc8392c08

        SHA1

        1b326ae273902cb4a65409eb5b807090eae3a9c2

        SHA256

        7986e3fde1290b0927fa93170ba062da8737e476a9ddb18d87e3b0301f3ab72e

        SHA512

        9afdec68addb62ce67091b3027a5cacc70badba0cdf866264e628092a98a6f921d71c5a9f35c64185ca899590008fac7921f01766a3b8d6d569631730583034a

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

        Filesize

        482KB

        MD5

        71fc1b89e533191ef271bec8b440babd

        SHA1

        0c2768354bc9f449c89f2702ddd6e5fda2831195

        SHA256

        16852397313b7e5ad044ce292b59ac5209d0405ac0e2ea78218f7b94894d9747

        SHA512

        e61a5f13178957466b8922b40f3f6b3f339d47bea36b6d4b8a372b92c20dd3cf9237c063a52120e939957dc60b9e06260b7c804bbf2123602f16f6f8e40105c2

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

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-MSJ9N.tmp\tuc3.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/3292-154-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/3292-155-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/3292-151-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/3292-152-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4612-160-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4612-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4612-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4760-13-0x0000000000750000-0x0000000000751000-memory.dmp

        Filesize

        4KB

      • memory/4760-163-0x0000000000750000-0x0000000000751000-memory.dmp

        Filesize

        4KB

      • memory/4760-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4812-176-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-180-0x0000000000930000-0x00000000009D2000-memory.dmp

        Filesize

        648KB

      • memory/4812-159-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-166-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-167-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-170-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-173-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-158-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-179-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-162-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-185-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-188-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-189-0x0000000000930000-0x00000000009D2000-memory.dmp

        Filesize

        648KB

      • memory/4812-192-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-195-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-198-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-201-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-205-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB

      • memory/4812-208-0x0000000000400000-0x000000000061C000-memory.dmp

        Filesize

        2.1MB