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Analysis

  • max time kernel
    98s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    21/08/2024, 10:04 UTC

General

  • Target

    $PLUGINSDIR/nsis7z.dll

  • Size

    313KB

  • MD5

    06a47571ac922f82c098622b2f5f6f63

  • SHA1

    8a581c33b7f2029c41edaad55d024fc0d2d7c427

  • SHA256

    e4ab3064f2e094910ae80104ef9d371ccb74ebbeeed592582cf099acd83f5fe9

  • SHA512

    04b3d18042f1faa536e1393179f412a5644d2cf691fbc14970f79df5c0594eeedb0826b495807a3243f27aaa0380423c1f975fe857f32e057309bb3f2a529a83

  • SSDEEP

    6144:rA9ssOlBrbYr5UP4m3mC/FvBbhQ1JzI+yQKiJGxdNtsm0:r2S165UP4mL/FvBtC8zQdSDmm0

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\$PLUGINSDIR\nsis7z.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:880
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1916
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 448
        3⤵
        • Program crash
        PID:3496
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1916 -ip 1916
    1⤵
      PID:2252

    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
      arc.msn.com
      Remote address:
      8.8.8.8:53
      Request
      arc.msn.com
      IN A
      Response
      arc.msn.com
      IN CNAME
      arc.trafficmanager.net
      arc.trafficmanager.net
      IN CNAME
      iris-de-prod-azsc-v2-frc-b.francecentral.cloudapp.azure.com
      iris-de-prod-azsc-v2-frc-b.francecentral.cloudapp.azure.com
      IN A
      20.74.47.205
    • flag-us
      DNS
      ctldl.windowsupdate.com
      Remote address:
      8.8.8.8:53
      Request
      ctldl.windowsupdate.com
      IN A
      Response
      ctldl.windowsupdate.com
      IN CNAME
      ctldl.windowsupdate.com.delivery.microsoft.com
      ctldl.windowsupdate.com.delivery.microsoft.com
      IN CNAME
      wu-b-net.trafficmanager.net
      wu-b-net.trafficmanager.net
      IN CNAME
      download.windowsupdate.com.edgesuite.net
      download.windowsupdate.com.edgesuite.net
      IN CNAME
      a767.dspw65.akamai.net
      a767.dspw65.akamai.net
      IN A
      92.123.140.25
      a767.dspw65.akamai.net
      IN A
      92.123.143.240
    • flag-us
      DNS
      ris.api.iris.microsoft.com
      Remote address:
      8.8.8.8:53
      Request
      ris.api.iris.microsoft.com
      IN A
      Response
      ris.api.iris.microsoft.com
      IN CNAME
      ris-prod.trafficmanager.net
      ris-prod.trafficmanager.net
      IN CNAME
      asf-ris-prod-neu-azsc.northeurope.cloudapp.azure.com
      asf-ris-prod-neu-azsc.northeurope.cloudapp.azure.com
      IN A
      20.234.120.54
    • flag-us
      DNS
      nexusrules.officeapps.live.com
      Remote address:
      8.8.8.8:53
      Request
      nexusrules.officeapps.live.com
      IN A
      Response
      nexusrules.officeapps.live.com
      IN CNAME
      prod.nexusrules.live.com.akadns.net
      prod.nexusrules.live.com.akadns.net
      IN A
      52.111.243.29
    • flag-us
      DNS
      20.177.190.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      20.177.190.20.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
      arc.msn.com
      Remote address:
      8.8.8.8:53
      Request
      arc.msn.com
      IN A
      Response
      arc.msn.com
      IN CNAME
      arc.trafficmanager.net
      arc.trafficmanager.net
      IN CNAME
      iris-de-prod-azsc-v2-neu-b.northeurope.cloudapp.azure.com
      iris-de-prod-azsc-v2-neu-b.northeurope.cloudapp.azure.com
      IN A
      20.223.36.55
    • 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
    • flag-us
      DNS
      29.243.111.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      29.243.111.52.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      25.140.123.92.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      25.140.123.92.in-addr.arpa
      IN PTR
      Response
      25.140.123.92.in-addr.arpa
      IN PTR
      a92-123-140-25deploystaticakamaitechnologiescom
    • 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
      DNS
      tse1.mm.bing.net
      Remote address:
      8.8.8.8:53
      Request
      tse1.mm.bing.net
      IN A
    • 150.171.28.10:443
      tse1.mm.bing.net
      tls
      1.9kB
      7.1kB
      16
      12
    • 150.171.28.10:443
      tse1.mm.bing.net
      tls
      2.3kB
      7.2kB
      20
      14
    • 150.171.28.10:443
      tse1.mm.bing.net
      tls
      2.3kB
      7.2kB
      20
      13
    • 150.171.28.10:443
      tse1.mm.bing.net
      tls
      1.9kB
      8.1kB
      18
      15
    • 150.171.28.10:443
      tse1.mm.bing.net
      tls
      137.1kB
      3.9MB
      2852
      2843
    • 8.8.8.8:53
      8.8.8.8.in-addr.arpa
      dns
      340 B
      885 B
      5
      5

      DNS Request

      8.8.8.8.in-addr.arpa

      DNS Request

      arc.msn.com

      DNS Response

      20.74.47.205

      DNS Request

      ctldl.windowsupdate.com

      DNS Response

      92.123.140.25
      92.123.143.240

      DNS Request

      ris.api.iris.microsoft.com

      DNS Response

      20.234.120.54

      DNS Request

      nexusrules.officeapps.live.com

      DNS Response

      52.111.243.29

    • 8.8.8.8:53
      20.177.190.20.in-addr.arpa
      dns
      343 B
      807 B
      5
      5

      DNS Request

      20.177.190.20.in-addr.arpa

      DNS Request

      205.47.74.20.in-addr.arpa

      DNS Request

      arc.msn.com

      DNS Response

      20.223.36.55

      DNS Request

      55.36.223.20.in-addr.arpa

      DNS Request

      29.243.111.52.in-addr.arpa

    • 8.8.8.8:53
      25.140.123.92.in-addr.arpa
      dns
      196 B
      307 B
      3
      2

      DNS Request

      25.140.123.92.in-addr.arpa

      DNS Request

      tse1.mm.bing.net

      DNS Request

      tse1.mm.bing.net

      DNS Response

      150.171.28.10
      150.171.27.10

    MITRE ATT&CK Enterprise v15

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