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Analysis

  • max time kernel
    141s
  • max time network
    144s
  • 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, 20:39 UTC

General

  • Target

    736a5b71fe2893c5c80c2f5ed93d5039b434efa3ebfec8f3798c6488cbca9592.exe

  • Size

    6.9MB

  • MD5

    de5739acd33e5114d5b7cc725d71f3d4

  • SHA1

    c75150f4f8376b2a4f00b6dd6ee83183eb7d9af9

  • SHA256

    736a5b71fe2893c5c80c2f5ed93d5039b434efa3ebfec8f3798c6488cbca9592

  • SHA512

    84be35faa784aaed4b8d3d2a3412539ee2ec54865ade59d25fbd1638f39d6b96d19e99508e61d7e48545da4da7ab61fc2398c3d0ca089015606184d59ad4c17a

  • SSDEEP

    196608:4Snj/mmV+GsH+bNueuJRAZVAOk5Vvz+tqE9AmEkzj:4SjumV+jHUodIjk5VzfE9Awzj

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\736a5b71fe2893c5c80c2f5ed93d5039b434efa3ebfec8f3798c6488cbca9592.exe
    "C:\Users\Admin\AppData\Local\Temp\736a5b71fe2893c5c80c2f5ed93d5039b434efa3ebfec8f3798c6488cbca9592.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Users\Admin\AppData\Local\Temp\is-EK8KC.tmp\736a5b71fe2893c5c80c2f5ed93d5039b434efa3ebfec8f3798c6488cbca9592.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-EK8KC.tmp\736a5b71fe2893c5c80c2f5ed93d5039b434efa3ebfec8f3798c6488cbca9592.tmp" /SL5="$901C8,6998999,54272,C:\Users\Admin\AppData\Local\Temp\736a5b71fe2893c5c80c2f5ed93d5039b434efa3ebfec8f3798c6488cbca9592.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:4828
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4108
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:812
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3824
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4876

      Network

      • flag-us
        DNS
        8.8.8.8.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        8.8.8.8.in-addr.arpa
        IN PTR
        Response
        8.8.8.8.in-addr.arpa
        IN PTR
        dnsgoogle
      • flag-us
        DNS
        10.179.89.13.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        10.179.89.13.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        176.178.17.96.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        176.178.17.96.in-addr.arpa
        IN PTR
        Response
        176.178.17.96.in-addr.arpa
        IN PTR
        a96-17-178-176deploystaticakamaitechnologiescom
      • flag-us
        DNS
        95.221.229.192.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        95.221.229.192.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        57.110.18.2.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        57.110.18.2.in-addr.arpa
        IN PTR
        Response
        57.110.18.2.in-addr.arpa
        IN PTR
        a2-18-110-57deploystaticakamaitechnologiescom
      • flag-us
        DNS
        bgejvcc.com
        crtgame.exe
        Remote address:
        194.49.94.194:53
        Request
        bgejvcc.com
        IN A
      • flag-us
        DNS
        bgejvcc.com
        crtgame.exe
        Remote address:
        194.49.94.194:53
        Request
        bgejvcc.com
        IN A
      • flag-us
        DNS
        bgejvcc.com
        crtgame.exe
        Remote address:
        194.49.94.194:53
        Request
        bgejvcc.com
        IN A
      • flag-us
        DNS
        bgejvcc.com
        crtgame.exe
        Remote address:
        194.49.94.194:53
        Request
        bgejvcc.com
        IN A
      • flag-us
        DNS
        bgejvcc.com
        crtgame.exe
        Remote address:
        194.49.94.194:53
        Request
        bgejvcc.com
        IN A
      • flag-us
        DNS
        5.6.3.6.1.6.2.7.4.5.4.7.5.6.7.4.0.7.3.6.8.6.4.4.2.c.e.5.1.3.2.c.ip6.arpa
        Remote address:
        8.8.8.8:53
        Request
        5.6.3.6.1.6.2.7.4.5.4.7.5.6.7.4.0.7.3.6.8.6.4.4.2.c.e.5.1.3.2.c.ip6.arpa
        IN PTR
        Response
      • flag-ru
        DNS
        bgejvcc.com
        crtgame.exe
        Remote address:
        152.89.198.214:53
        Request
        bgejvcc.com
        IN A
        Response
        bgejvcc.com
        IN A
        185.196.8.22
      • flag-us
        GET
        http://bgejvcc.com/click/?counter=de7ef49b2c006853fb3839753406f2423cfd1905c311578eaae3c7edb62dde24353e1d9a943e9d15038842974dbc1dbaf7a1439f508166429e289d5b86953e226c55f676647fc2813369d184da325a508ddf06f110c6
        crtgame.exe
        Remote address:
        185.196.8.22:80
        Request
        GET /click/?counter=de7ef49b2c006853fb3839753406f2423cfd1905c311578eaae3c7edb62dde24353e1d9a943e9d15038842974dbc1dbaf7a1439f508166429e289d5b86953e226c55f676647fc2813369d184da325a508ddf06f110c6 HTTP/1.1
        Host: bgejvcc.com
        User-Agent: Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)
        Response
        HTTP/1.1 200 OK
        Server: nginx/1.20.1
        Date: Sun, 10 Dec 2023 20:41:31 GMT
        Content-Type: text/html; charset=UTF-8
        Transfer-Encoding: chunked
        Connection: keep-alive
        X-Powered-By: PHP/7.4.33
      • flag-us
        DNS
        1.0.a.d.b.2.9.a.2.3.b.d.1.e.3.8.1.0.a.d.b.2.9.a.6.d.6.c.9.5.8.9.ip6.arpa
        Remote address:
        8.8.8.8:53
        Request
        1.0.a.d.b.2.9.a.2.3.b.d.1.e.3.8.1.0.a.d.b.2.9.a.6.d.6.c.9.5.8.9.ip6.arpa
        IN PTR
        Response
      • flag-us
        DNS
        214.198.89.152.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        214.198.89.152.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        22.8.196.185.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        22.8.196.185.in-addr.arpa
        IN PTR
        Response
        22.8.196.185.in-addr.arpa
        IN PTR
        g3fmytasteoftodaycom
      • 185.196.8.22:80
        http://bgejvcc.com/click/?counter=de7ef49b2c006853fb3839753406f2423cfd1905c311578eaae3c7edb62dde24353e1d9a943e9d15038842974dbc1dbaf7a1439f508166429e289d5b86953e226c55f676647fc2813369d184da325a508ddf06f110c6
        http
        crtgame.exe
        479 B
        352 B
        4
        3

        HTTP Request

        GET http://bgejvcc.com/click/?counter=de7ef49b2c006853fb3839753406f2423cfd1905c311578eaae3c7edb62dde24353e1d9a943e9d15038842974dbc1dbaf7a1439f508166429e289d5b86953e226c55f676647fc2813369d184da325a508ddf06f110c6

        HTTP Response

        200
      • 8.8.8.8:53
        8.8.8.8.in-addr.arpa
        dns
        66 B
        90 B
        1
        1

        DNS Request

        8.8.8.8.in-addr.arpa

      • 8.8.8.8:53
        10.179.89.13.in-addr.arpa
        dns
        71 B
        145 B
        1
        1

        DNS Request

        10.179.89.13.in-addr.arpa

      • 8.8.8.8:53
        176.178.17.96.in-addr.arpa
        dns
        72 B
        137 B
        1
        1

        DNS Request

        176.178.17.96.in-addr.arpa

      • 8.8.8.8:53
        95.221.229.192.in-addr.arpa
        dns
        73 B
        144 B
        1
        1

        DNS Request

        95.221.229.192.in-addr.arpa

      • 8.8.8.8:53
        57.110.18.2.in-addr.arpa
        dns
        70 B
        133 B
        1
        1

        DNS Request

        57.110.18.2.in-addr.arpa

      • 194.49.94.194:53
        bgejvcc.com
        dns
        crtgame.exe
        285 B
        5

        DNS Request

        bgejvcc.com

        DNS Request

        bgejvcc.com

        DNS Request

        bgejvcc.com

        DNS Request

        bgejvcc.com

        DNS Request

        bgejvcc.com

      • 8.8.8.8:53
        5.6.3.6.1.6.2.7.4.5.4.7.5.6.7.4.0.7.3.6.8.6.4.4.2.c.e.5.1.3.2.c.ip6.arpa
        dns
        118 B
        182 B
        1
        1

        DNS Request

        5.6.3.6.1.6.2.7.4.5.4.7.5.6.7.4.0.7.3.6.8.6.4.4.2.c.e.5.1.3.2.c.ip6.arpa

      • 152.89.198.214:53
        bgejvcc.com
        dns
        crtgame.exe
        57 B
        84 B
        1
        1

        DNS Request

        bgejvcc.com

        DNS Response

        185.196.8.22

      • 8.8.8.8:53
        1.0.a.d.b.2.9.a.2.3.b.d.1.e.3.8.1.0.a.d.b.2.9.a.6.d.6.c.9.5.8.9.ip6.arpa
        dns
        118 B
        182 B
        1
        1

        DNS Request

        1.0.a.d.b.2.9.a.2.3.b.d.1.e.3.8.1.0.a.d.b.2.9.a.6.d.6.c.9.5.8.9.ip6.arpa

      • 8.8.8.8:53
        214.198.89.152.in-addr.arpa
        dns
        73 B
        127 B
        1
        1

        DNS Request

        214.198.89.152.in-addr.arpa

      • 8.8.8.8:53
        22.8.196.185.in-addr.arpa
        dns
        71 B
        107 B
        1
        1

        DNS Request

        22.8.196.185.in-addr.arpa

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        128KB

        MD5

        b3e9c87d2180fd5f22aef367a56228c0

        SHA1

        5e39e9b5e42b595198e9b0ba4ebf7ac20858eb5f

        SHA256

        ff7c60437c17f2d63a95cb62d70aaca8e9bc1981cc1c3cfb0d366e492fb12fad

        SHA512

        09adfd3d1bc0e6af19ad237377de0e25c32f0dfe45734dc6ccfc31c712cd11a2d2cda1df77aee32b1c88ba826d4d3972d2ab203ef47febf8539155e529644036

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

        Filesize

        150KB

        MD5

        8993853487e4b2f899267e3f8b9f252e

        SHA1

        baaf4715fc06e484a9d3f2f211b586c5e090f686

        SHA256

        4b1e9f7e7944def5634d1f318b3ab9bed9b2c4b5c02578275cb2fe885db33eed

        SHA512

        ea7c9d4990700dc71dd42aa930630f9248e2a68af2c69dd724b86a9c3e4719fec941293d4fb2f13841fb5d14897b8b733c57ef8afe1f3f0cd129ab0cd4bb5026

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

        Filesize

        155KB

        MD5

        e3dddc1862b474edffc92edb72e9cc23

        SHA1

        d52e7502747728749ff696815363f33cd0786b68

        SHA256

        86fa9ad45675dfb5766f7973ebf5c798fd2ec218caa642a3eaff6a139dbbb479

        SHA512

        a5c8506da72ba31912b5e0f8f916fd2b3b8bc6776021aed033cbe7dfcb5a3a672d6215b8c3d35fae468ceea2eb92866b7948a1966a6d246e684796143b32ddca

      • C:\Users\Admin\AppData\Local\Temp\is-EK8KC.tmp\736a5b71fe2893c5c80c2f5ed93d5039b434efa3ebfec8f3798c6488cbca9592.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-D0OS0.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-D0OS0.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/812-161-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-189-0x0000000000900000-0x00000000009A1000-memory.dmp

        Filesize

        644KB

      • memory/812-208-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-158-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-156-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-204-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-201-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-198-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-195-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-192-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-188-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-185-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-163-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-166-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-169-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-172-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-175-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-176-0x0000000000900000-0x00000000009A1000-memory.dmp

        Filesize

        644KB

      • memory/812-181-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/812-182-0x0000000000900000-0x00000000009A1000-memory.dmp

        Filesize

        644KB

      • memory/3868-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/3868-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3868-6-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

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

        Filesize

        80KB

      • memory/4048-159-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4108-154-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4108-150-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4108-151-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

      • memory/4108-153-0x0000000000400000-0x000000000061B000-memory.dmp

        Filesize

        2.1MB

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