Analysis

  • max time kernel
    132s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/05/2024, 02:10 UTC

General

  • Target

    $PLUGINSDIR/StdUtils.dll

  • Size

    100KB

  • MD5

    c6a6e03f77c313b267498515488c5740

  • SHA1

    3d49fc2784b9450962ed6b82b46e9c3c957d7c15

  • SHA256

    b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

  • SHA512

    9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

  • SSDEEP

    3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
      2⤵
        PID:1980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 628
          3⤵
          • Program crash
          PID:3648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1980 -ip 1980
      1⤵
        PID:4720

      Network

      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
        Response
        g.bing.com
        IN CNAME
        g-bing-com.dual-a-0034.a-msedge.net
        g-bing-com.dual-a-0034.a-msedge.net
        IN CNAME
        dual-a-0034.a-msedge.net
        dual-a-0034.a-msedge.net
        IN A
        204.79.197.237
        dual-a-0034.a-msedge.net
        IN A
        13.107.21.237
      • flag-us
        GET
        https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid=
        Remote address:
        204.79.197.237:443
        Request
        GET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid= HTTP/2.0
        host: g.bing.com
        accept-encoding: gzip, deflate
        user-agent: WindowsShellClient/9.0.40929.0 (Windows)
        Response
        HTTP/2.0 204
        cache-control: no-cache, must-revalidate
        pragma: no-cache
        expires: Fri, 01 Jan 1990 00:00:00 GMT
        set-cookie: MUID=2B1D1BFDF21269A9191F0F8BF33568F4; domain=.bing.com; expires=Fri, 30-May-2025 02:30:25 GMT; path=/; SameSite=None; Secure; Priority=High;
        strict-transport-security: max-age=31536000; includeSubDomains; preload
        access-control-allow-origin: *
        x-cache: CONFIG_NOCACHE
        accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
        x-msedge-ref: Ref A: E91131262D434D3C9DFB3203A3703F01 Ref B: LON04EDGE0717 Ref C: 2024-05-05T02:30:25Z
        date: Sun, 05 May 2024 02:30:25 GMT
      • flag-us
        GET
        https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid=
        Remote address:
        204.79.197.237:443
        Request
        GET /neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid= HTTP/2.0
        host: g.bing.com
        accept-encoding: gzip, deflate
        user-agent: WindowsShellClient/9.0.40929.0 (Windows)
        cookie: MUID=2B1D1BFDF21269A9191F0F8BF33568F4
        Response
        HTTP/2.0 204
        cache-control: no-cache, must-revalidate
        pragma: no-cache
        expires: Fri, 01 Jan 1990 00:00:00 GMT
        set-cookie: MSPTC=pZ5wyUPRg8h5vEyPfMnZ2h75DAAAiJSrb8Sjd5v7bz4; domain=.bing.com; expires=Fri, 30-May-2025 02:30:25 GMT; path=/; Partitioned; secure; SameSite=None
        strict-transport-security: max-age=31536000; includeSubDomains; preload
        access-control-allow-origin: *
        x-cache: CONFIG_NOCACHE
        accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
        x-msedge-ref: Ref A: A5F6A2B504864570B2E6E7E4F9534721 Ref B: LON04EDGE0717 Ref C: 2024-05-05T02:30:25Z
        date: Sun, 05 May 2024 02:30:25 GMT
      • flag-us
        GET
        https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid=
        Remote address:
        204.79.197.237:443
        Request
        GET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid= HTTP/2.0
        host: g.bing.com
        accept-encoding: gzip, deflate
        user-agent: WindowsShellClient/9.0.40929.0 (Windows)
        cookie: MUID=2B1D1BFDF21269A9191F0F8BF33568F4; MSPTC=pZ5wyUPRg8h5vEyPfMnZ2h75DAAAiJSrb8Sjd5v7bz4
        Response
        HTTP/2.0 204
        cache-control: no-cache, must-revalidate
        pragma: no-cache
        expires: Fri, 01 Jan 1990 00:00:00 GMT
        strict-transport-security: max-age=31536000; includeSubDomains; preload
        access-control-allow-origin: *
        x-cache: CONFIG_NOCACHE
        accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
        x-msedge-ref: Ref A: C4A359119B9441B4A0B12B9ECB599314 Ref B: LON04EDGE0717 Ref C: 2024-05-05T02:30:26Z
        date: Sun, 05 May 2024 02:30:25 GMT
      • flag-us
        DNS
        79.190.18.2.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        79.190.18.2.in-addr.arpa
        IN PTR
        Response
        79.190.18.2.in-addr.arpa
        IN PTR
        a2-18-190-79deploystaticakamaitechnologiescom
      • flag-us
        DNS
        237.197.79.204.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        237.197.79.204.in-addr.arpa
        IN PTR
        Response
      • flag-nl
        GET
        https://www.bing.com/th?id=OADD2.10239359720591_10PHTLBML42K6TRZO&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=24&h=24&dynsize=1&qlt=90
        Remote address:
        23.62.61.194:443
        Request
        GET /th?id=OADD2.10239359720591_10PHTLBML42K6TRZO&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=24&h=24&dynsize=1&qlt=90 HTTP/2.0
        host: www.bing.com
        accept: */*
        cookie: MUID=2B1D1BFDF21269A9191F0F8BF33568F4; MSPTC=pZ5wyUPRg8h5vEyPfMnZ2h75DAAAiJSrb8Sjd5v7bz4
        accept-encoding: gzip, deflate, br
        user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
        Response
        HTTP/2.0 200
        cache-control: public, max-age=2592000
        content-type: image/png
        access-control-allow-origin: *
        access-control-allow-headers: *
        access-control-allow-methods: GET, POST, OPTIONS
        timing-allow-origin: *
        report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth"}]}
        nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
        content-length: 1107
        date: Sun, 05 May 2024 02:30:27 GMT
        alt-svc: h3=":443"; ma=93600
        x-cdn-traceid: 0.be3d3e17.1714876227.1aba1099
      • flag-us
        DNS
        196.249.167.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        196.249.167.52.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        76.32.126.40.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        76.32.126.40.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        88.156.103.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        88.156.103.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        194.61.62.23.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        194.61.62.23.in-addr.arpa
        IN PTR
        Response
        194.61.62.23.in-addr.arpa
        IN PTR
        a23-62-61-194deploystaticakamaitechnologiescom
      • flag-us
        DNS
        232.168.11.51.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        232.168.11.51.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        183.59.114.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        183.59.114.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        18.31.95.13.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        18.31.95.13.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        172.210.232.199.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        172.210.232.199.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        48.251.17.2.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        48.251.17.2.in-addr.arpa
        IN PTR
        Response
        48.251.17.2.in-addr.arpa
        IN PTR
        a2-17-251-48deploystaticakamaitechnologiescom
      • flag-us
        DNS
        138.201.86.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        138.201.86.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        22.236.111.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        22.236.111.52.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        55.36.223.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        55.36.223.20.in-addr.arpa
        IN PTR
        Response
      • 204.79.197.237:443
        https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid=
        tls, http2
        2.0kB
        9.2kB
        22
        19

        HTTP Request

        GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid=

        HTTP Response

        204

        HTTP Request

        GET https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid=

        HTTP Response

        204

        HTTP Request

        GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=1d961bf5ad3a414eb237b1446599c8aa&localId=w:5128B8A4-055F-6043-9311-1EEEFB4045B4&deviceId=6825828473859725&anid=

        HTTP Response

        204
      • 23.62.61.194:443
        https://www.bing.com/th?id=OADD2.10239359720591_10PHTLBML42K6TRZO&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=24&h=24&dynsize=1&qlt=90
        tls, http2
        1.6kB
        6.4kB
        18
        13

        HTTP Request

        GET https://www.bing.com/th?id=OADD2.10239359720591_10PHTLBML42K6TRZO&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=24&h=24&dynsize=1&qlt=90

        HTTP Response

        200
      • 8.8.8.8:53
        g.bing.com
        dns
        56 B
        151 B
        1
        1

        DNS Request

        g.bing.com

        DNS Response

        204.79.197.237
        13.107.21.237

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

        DNS Request

        79.190.18.2.in-addr.arpa

      • 8.8.8.8:53
        237.197.79.204.in-addr.arpa
        dns
        73 B
        143 B
        1
        1

        DNS Request

        237.197.79.204.in-addr.arpa

      • 8.8.8.8:53
        196.249.167.52.in-addr.arpa
        dns
        73 B
        147 B
        1
        1

        DNS Request

        196.249.167.52.in-addr.arpa

      • 8.8.8.8:53
        76.32.126.40.in-addr.arpa
        dns
        71 B
        157 B
        1
        1

        DNS Request

        76.32.126.40.in-addr.arpa

      • 8.8.8.8:53
        88.156.103.20.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        88.156.103.20.in-addr.arpa

      • 8.8.8.8:53
        194.61.62.23.in-addr.arpa
        dns
        71 B
        135 B
        1
        1

        DNS Request

        194.61.62.23.in-addr.arpa

      • 8.8.8.8:53
        232.168.11.51.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        232.168.11.51.in-addr.arpa

      • 8.8.8.8:53
        183.59.114.20.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        183.59.114.20.in-addr.arpa

      • 8.8.8.8:53
        18.31.95.13.in-addr.arpa
        dns
        70 B
        144 B
        1
        1

        DNS Request

        18.31.95.13.in-addr.arpa

      • 8.8.8.8:53
        172.210.232.199.in-addr.arpa
        dns
        74 B
        128 B
        1
        1

        DNS Request

        172.210.232.199.in-addr.arpa

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

        DNS Request

        48.251.17.2.in-addr.arpa

      • 8.8.8.8:53
        138.201.86.20.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        138.201.86.20.in-addr.arpa

      • 8.8.8.8:53
        22.236.111.52.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        22.236.111.52.in-addr.arpa

      • 8.8.8.8:53
        55.36.223.20.in-addr.arpa
        dns
        71 B
        157 B
        1
        1

        DNS Request

        55.36.223.20.in-addr.arpa

      MITRE ATT&CK Matrix

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