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Analysis

  • max time kernel
    141s
  • max time network
    124s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/12/2023, 16:53

General

  • Target

    a895c430e3057007566a7c60f53c06910f39d40c6b84bf517ee2d90dbaec5cc6.exe

  • Size

    6.9MB

  • MD5

    363ebb4e900b3d4b1c04fbe0fd239b02

  • SHA1

    64c0cfe01aaa477692ecec5efbda5a46676f47b7

  • SHA256

    a895c430e3057007566a7c60f53c06910f39d40c6b84bf517ee2d90dbaec5cc6

  • SHA512

    60e3ace1a082ebb6184a6c90095bd8139279c19f660e52d83446de724ee89988c51798fca218d2d8ca09cf3811b91b63a95fd0cd7ca3fec765734d5c58f403ee

  • SSDEEP

    196608:5A89BmaeXRdyXFnlUrU7o7Bz3HzNNn1jnNnTfMImG0zj:BBmakyVnlUQ7Wz3Tv1jNTh0zj

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\a895c430e3057007566a7c60f53c06910f39d40c6b84bf517ee2d90dbaec5cc6.exe
    "C:\Users\Admin\AppData\Local\Temp\a895c430e3057007566a7c60f53c06910f39d40c6b84bf517ee2d90dbaec5cc6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3692
    • C:\Users\Admin\AppData\Local\Temp\is-EF43I.tmp\a895c430e3057007566a7c60f53c06910f39d40c6b84bf517ee2d90dbaec5cc6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-EF43I.tmp\a895c430e3057007566a7c60f53c06910f39d40c6b84bf517ee2d90dbaec5cc6.tmp" /SL5="$5022A,6977575,54272,C:\Users\Admin\AppData\Local\Temp\a895c430e3057007566a7c60f53c06910f39d40c6b84bf517ee2d90dbaec5cc6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3440
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4728
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2648
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1172
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:2504
          • C:\Program Files (x86)\CRTGame\crtgame.exe
            "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
            3⤵
            • Executes dropped EXE
            PID:3040

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        591KB

        MD5

        147f95d9ee064620392798bf473ed827

        SHA1

        517048552a3cf4b74a62fc71afc2c5d92c846a32

        SHA256

        00c4e225a786270daf5b35d95b11227d7026ffcd279761083190284e80b48d3d

        SHA512

        52912effcd64e15fdd05323b0e4a1d1bb224af55feefb471c51bf1a8cc880568d07e2ae0261ecbc905decd065d16aee3768234a74849520012b41f2d8cd14680

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

        Filesize

        759KB

        MD5

        c46e9db10e0a57ecff883cf0d325564f

        SHA1

        2425c6693325a179bd2e613ebf7f1e8d69a158b3

        SHA256

        e78525c0e6fe557e2d3996dbe0c83fd700046553115265f5c5a958af7aa9231f

        SHA512

        6ae69083fc3ad6dd342e2c564e3194e38cb679a619656fafe0ec3ff2d15b07c2bbe2b0b0ba1ce5ea1f1bc76b6ecfb801915264d5bcc24baed5fbc24f917166fb

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

        Filesize

        114KB

        MD5

        df4af86570e06349fe7dc31320da909b

        SHA1

        435adbafb072bbf2d09182b2c78c1e7671e6cab1

        SHA256

        a4eb81d50fda2df1dbccfb80fcbddd605315cc1c7e95b5ad1dffe3b3bcdd8132

        SHA512

        4c34f52d0f965b1d78961c5127abbddac83a914fdcc6e27d03819bd9f42486a8976ca46393fad8cd584dbf40cae4b20099c8cfe3d35d27e772626c71d43f99f1

      • C:\Users\Admin\AppData\Local\Temp\is-EF43I.tmp\a895c430e3057007566a7c60f53c06910f39d40c6b84bf517ee2d90dbaec5cc6.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-CRKB6.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-CRKB6.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/2648-154-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2648-155-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2648-152-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2648-151-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-186-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-176-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-209-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-157-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-159-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-206-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-203-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-162-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-199-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-166-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-167-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-170-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-173-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-196-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-179-0x0000000000930000-0x00000000009D2000-memory.dmp

        Filesize

        648KB

      • memory/3040-180-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-183-0x0000000000930000-0x00000000009D2000-memory.dmp

        Filesize

        648KB

      • memory/3040-193-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-189-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3040-190-0x0000000000930000-0x00000000009D2000-memory.dmp

        Filesize

        648KB

      • memory/3440-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3440-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3440-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3692-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3692-160-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3692-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB