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Analysis

  • max time kernel
    141s
  • max time network
    145s
  • 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, 19:18

General

  • Target

    fc70cba6501a558587bbb7a41446f3531ea98464dda4f2400bd5441c7e0d813f.exe

  • Size

    6.9MB

  • MD5

    cfa385b08b5befc42d90d9f9d9b8063f

  • SHA1

    a0ad9df5b5f6fcf13380f2bcc929659cfc57278e

  • SHA256

    fc70cba6501a558587bbb7a41446f3531ea98464dda4f2400bd5441c7e0d813f

  • SHA512

    fb28bc59f28c64e56e7974c2366a8b6d712769b9b38c171ac6dc440cf0a41f5a2b37e64da045f370ee0b1c54f635ab08e4856ee1b368d43776b6c8600f472a7f

  • SSDEEP

    196608:FA89BmaeXRdyXFnlUrU7o7Bz3HzNNn1jnNnTfMImG0zj:VBmakyVnlUQ7Wz3Tv1jNTh0zj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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\fc70cba6501a558587bbb7a41446f3531ea98464dda4f2400bd5441c7e0d813f.exe
    "C:\Users\Admin\AppData\Local\Temp\fc70cba6501a558587bbb7a41446f3531ea98464dda4f2400bd5441c7e0d813f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Users\Admin\AppData\Local\Temp\is-QSE64.tmp\fc70cba6501a558587bbb7a41446f3531ea98464dda4f2400bd5441c7e0d813f.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QSE64.tmp\fc70cba6501a558587bbb7a41446f3531ea98464dda4f2400bd5441c7e0d813f.tmp" /SL5="$901C8,6977575,54272,C:\Users\Admin\AppData\Local\Temp\fc70cba6501a558587bbb7a41446f3531ea98464dda4f2400bd5441c7e0d813f.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3868
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:828
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:764
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3860
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4832
          • C:\Program Files (x86)\CRTGame\crtgame.exe
            "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
            3⤵
            • Executes dropped EXE
            PID:2032

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        66KB

        MD5

        521ecac49694a76f87dd5c0ceeede7a0

        SHA1

        c9e9a785d8b79b06c515c686a19739762550bc52

        SHA256

        32fc09c154c58b86886a8264ecc74f6016bf04bb7f790e0b34895312904e15fa

        SHA512

        df55deb06e49159ba9c2902fad6de8715757a80d113ba48e171031cf86dba90fec3bb78f7be6f62504222ac6f299ca60d288d592c067e08e4ba332fb8e531b64

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

        Filesize

        25KB

        MD5

        2f593b97354afb7898d7687b3531b7c5

        SHA1

        567e15a3e64c48d922d79a2d0bc3fd0db4e90cb3

        SHA256

        21953d9aa32fe97adbf7dad521e4a0eb6839b0250aa9200f9d9cbaa7f072b1f7

        SHA512

        a046d1522b473b5d7f94551c727fb47607ae319758e8824b2f10acf3a1e4fad805fb1d2ee3fe35fa3e3c5a8e459e15c46885047f5854dc580802f3627d3203cb

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

        Filesize

        708KB

        MD5

        6921acebfd749a8382e7046469c2dd7c

        SHA1

        45070e9ea9d1b91ae92fb30bdcfc632a2e0ae4bf

        SHA256

        aa6d772874dc7ffee92956391be014d51bccba7632c0a8a3ed54e22e64dd4b98

        SHA512

        00cb92969f2d8b6a9c9bde0417053b30a19ea91710348f7dafbb4bd8e8dddcb528534a4202eabb4ee160438ea09732872e755302a127a50362548f92cc38b4cd

      • C:\Users\Admin\AppData\Local\Temp\is-QSE64.tmp\fc70cba6501a558587bbb7a41446f3531ea98464dda4f2400bd5441c7e0d813f.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-8AU9G.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-8AU9G.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/764-153-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/764-150-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/764-151-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-181-0x00000000008D0000-0x0000000000972000-memory.dmp

        Filesize

        648KB

      • memory/2032-191-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-156-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-157-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-207-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-203-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-160-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-200-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-164-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-165-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-168-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-171-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-174-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-177-0x00000000008D0000-0x0000000000972000-memory.dmp

        Filesize

        648KB

      • memory/2032-178-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-197-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-184-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-187-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/2032-188-0x00000000008D0000-0x0000000000972000-memory.dmp

        Filesize

        648KB

      • memory/2032-194-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/3868-9-0x00000000004C0000-0x00000000004C1000-memory.dmp

        Filesize

        4KB

      • memory/3868-161-0x00000000004C0000-0x00000000004C1000-memory.dmp

        Filesize

        4KB

      • memory/3868-159-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4048-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4048-158-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB