Analysis

  • max time kernel
    93s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/08/2024, 07:54 UTC

General

  • Target

    RtlLib.dll

  • Size

    361KB

  • MD5

    dfaf646ddaebb012dfbfc9003dd43c8f

  • SHA1

    e508dd7366349caa24d935697ba0b95a8a52d366

  • SHA256

    75fd5c6336369cf994d81ed49ceadc09c9ee78fb31946061baed621e3504a42d

  • SHA512

    4b25b934adb77ae3baa23eeefce54eb684573cb21e71e8f4ad89fcbb73bc0155771f72ffc7dde72ef01f3a93f3627dd53bb258b5be452b6161f4411a5394ade2

  • SSDEEP

    6144:WWl6PziMx2kt/u0UyJ1h4h/fHKGgZJv+IpPFwa3opJ:WWlwiMxr224hqvtw2AJ

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\RtlLib.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\RtlLib.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:676
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 676 -s 724
        3⤵
        • Program crash
        PID:2924
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 676 -ip 676
    1⤵
      PID:380

    Network

    • flag-us
      DNS
      tse1.mm.bing.net
      Remote address:
      8.8.8.8:53
      Request
      tse1.mm.bing.net
      IN A
      Response
      tse1.mm.bing.net
      IN CNAME
      mm-mm.bing.net.trafficmanager.net
      mm-mm.bing.net.trafficmanager.net
      IN CNAME
      ax-0001.ax-msedge.net
      ax-0001.ax-msedge.net
      IN A
      150.171.28.10
      ax-0001.ax-msedge.net
      IN A
      150.171.27.10
    • flag-us
      GET
      https://tse1.mm.bing.net/th?id=OADD2.10239339388130_1LUEK7XGBN2FMZI35&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90
      Remote address:
      150.171.28.10:443
      Request
      GET /th?id=OADD2.10239339388130_1LUEK7XGBN2FMZI35&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90 HTTP/2.0
      host: tse1.mm.bing.net
      accept: */*
      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-length: 838075
      content-type: image/jpeg
      x-cache: TCP_HIT
      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&ndcParam=QUZE"}]}
      nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
      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: DBE15F2BE882445A9D8E36D3443815E8 Ref B: LON04EDGE0813 Ref C: 2024-08-07T07:55:06Z
      date: Wed, 07 Aug 2024 07:55:06 GMT
    • flag-us
      DNS
      10.28.171.150.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      10.28.171.150.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      71.159.190.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      71.159.190.20.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      205.47.74.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      205.47.74.20.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      50.23.12.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      50.23.12.20.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      171.39.242.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      171.39.242.20.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      71.190.18.2.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      71.190.18.2.in-addr.arpa
      IN PTR
      Response
      71.190.18.2.in-addr.arpa
      IN PTR
      a2-18-190-71deploystaticakamaitechnologiescom
    • flag-us
      DNS
      172.214.232.199.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      172.214.232.199.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      48.229.111.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      48.229.111.52.in-addr.arpa
      IN PTR
      Response
    • 150.171.28.10:443
      https://tse1.mm.bing.net/th?id=OADD2.10239339388130_1LUEK7XGBN2FMZI35&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90
      tls, http2
      31.8kB
      873.2kB
      637
      634

      HTTP Request

      GET https://tse1.mm.bing.net/th?id=OADD2.10239339388130_1LUEK7XGBN2FMZI35&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90

      HTTP Response

      200
    • 8.8.8.8:53
      tse1.mm.bing.net
      dns
      62 B
      170 B
      1
      1

      DNS Request

      tse1.mm.bing.net

      DNS Response

      150.171.28.10
      150.171.27.10

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

      DNS Request

      10.28.171.150.in-addr.arpa

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

      DNS Request

      71.159.190.20.in-addr.arpa

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

      DNS Request

      205.47.74.20.in-addr.arpa

    • 8.8.8.8:53
      50.23.12.20.in-addr.arpa
      dns
      70 B
      156 B
      1
      1

      DNS Request

      50.23.12.20.in-addr.arpa

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

      DNS Request

      171.39.242.20.in-addr.arpa

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

      DNS Request

      71.190.18.2.in-addr.arpa

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

      DNS Request

      172.214.232.199.in-addr.arpa

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

      DNS Request

      48.229.111.52.in-addr.arpa

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/676-1-0x00000000028E0000-0x000000000295C000-memory.dmp

      Filesize

      496KB

    We care about your privacy.

    This website stores cookies on your computer. These cookies are used to improve your website experience and provide more personalized services to you, both on this website and through other media. To find out more about the cookies we use, see our Privacy Policy.