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Overview

overview

1

Static

static

1

MDE_File_S...17.zip

windows7-x64

1

MDE_File_S...17.zip

windows10-2004-x64

1

Download-S...in.zip

windows7-x64

1

Download-S...in.zip

windows10-2004-x64

1

Download-S...14.zip

windows7-x64

1

Download-S...14.zip

windows10-2004-x64

1

run-ryr.dll

windows7-x64

1

run-ryr.dll

windows10-2004-x64

1

Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/03/2023, 13:50 UTC

Sharing

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Report Analysis Logs

General

  • Target

    run-ryr.dll

  • Size

    681.6MB

  • MD5

    d1330647cc11d5701c256235d28b638a

  • SHA1

    7960267d504734f6b347ece388379d86c1abf963

  • SHA256

    b0ab4914069e7b540932e416d0e0a836b77fc1392a65bbc7fa79acca3e0b00b0

  • SHA512

    05bdbf39d866d6f6eae6fd35df5aabde72b952d6c49c73f9ebec50b1e5fb9fde565cf93172f4acb547213457a11888669f1926125243370a7d308271f45d3f51

  • SSDEEP

    24576:rRLskQ4zPr36G53wMocCDtm1mwqww+PtZ7xOgm8UOn3IVMF0:rRLg4vrboXxmLqwftZso58r

Score
1/10

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\run-ryr.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\run-ryr.dll,#1
      2⤵
        PID:1988

    Network

    • flag-us
      DNS
      58.55.71.13.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      58.55.71.13.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      210.81.184.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      210.81.184.52.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      64.159.190.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      64.159.190.20.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      28.118.140.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      28.118.140.52.in-addr.arpa
      IN PTR
      Response
    • 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
      1.77.109.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      1.77.109.52.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      199.176.139.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      199.176.139.52.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      199.176.139.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      199.176.139.52.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      202.74.101.95.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      202.74.101.95.in-addr.arpa
      IN PTR
      Response
      202.74.101.95.in-addr.arpa
      IN PTR
      a95-101-74-202deploystaticakamaitechnologiescom
    • flag-us
      DNS
      202.74.101.95.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      202.74.101.95.in-addr.arpa
      IN PTR
      Response
      202.74.101.95.in-addr.arpa
      IN PTR
      a95-101-74-202deploystaticakamaitechnologiescom
    • 13.89.178.26:443
      322 B
       7
    • 117.18.237.29:80
      322 B
       7
    • 95.101.78.106:80
      322 B
       7
    • 209.197.3.8:80
      322 B
       7
    • 173.223.113.164:443
      322 B
       7
    • 204.79.197.203:80
      322 B
       7
    • 8.8.8.8:53
      58.55.71.13.in-addr.arpa
      dns
      70 B
       144 B
       1
      1

      DNS Request

      58.55.71.13.in-addr.arpa

    • 8.8.8.8:53
      210.81.184.52.in-addr.arpa
      dns
      72 B
       146 B
       1
      1

      DNS Request

      210.81.184.52.in-addr.arpa

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

      DNS Request

      64.159.190.20.in-addr.arpa

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

      DNS Request

      28.118.140.52.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
      1.77.109.52.in-addr.arpa
      dns
      70 B
       144 B
       1
      1

      DNS Request

      1.77.109.52.in-addr.arpa

    • 8.8.8.8:53
      199.176.139.52.in-addr.arpa
      dns
      146 B
       318 B
       2
      2

      DNS Request

      199.176.139.52.in-addr.arpa

      DNS Request

      199.176.139.52.in-addr.arpa

    • 8.8.8.8:53
      202.74.101.95.in-addr.arpa
      dns
      144 B
       274 B
       2
      2

      DNS Request

      202.74.101.95.in-addr.arpa

      DNS Request

      202.74.101.95.in-addr.arpa

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1988-133-0x0000000002320000-0x000000000241F000-memory.dmp

      Filesize

      1020KB

      Download

    • memory/1988-134-0x0000000002320000-0x00000000023E0000-memory.dmp

      Filesize

      768KB

      Download

    • memory/1988-135-0x00000000023E0000-0x000000000248B000-memory.dmp

      Filesize

      684KB

      Download

    • memory/1988-138-0x00000000023E0000-0x000000000248B000-memory.dmp

      Filesize

      684KB

      Download

    • memory/1988-139-0x00000000023E0000-0x000000000248B000-memory.dmp

      Filesize

      684KB

      Download

    • memory/1988-142-0x0000000002320000-0x000000000241F000-memory.dmp

      Filesize

      1020KB

      Download

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