Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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 15:48

General

  • Target

    $TEMP/R2RJUCE.dll

  • Size

    242KB

  • MD5

    90a452c84f7f2b5ca5a61bccaaa17e92

  • SHA1

    3fb5829be5db5af55ee4043f0dce7f9253d800dd

  • SHA256

    674a6eafb277261cd6959a4145329ab8b612fe5948fc8daf064192498fa65f92

  • SHA512

    41304120d3b2d0489fa82c13abce47fca967c6415e28c05382c0c567a167ff400f7d58b843afdfcc33227d4caa8fbb32af38fa7175fd066631fe1bb82615975b

  • SSDEEP

    3072:BsUYsLox8+vwJMcr7HKKQnpkrsvPmp55kIlzjjrfFO75Ag0Fuev/TBfoxzV7i94:n0x8fO0KD2AvPmbeQNcAOe3TBgDtDc

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\$TEMP\R2RJUCE.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2824
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\R2RJUCE.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3116
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 620
        3⤵
        • Program crash
        PID:4880
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3116 -ip 3116
    1⤵
      PID:2076

    Network

    • flag-us
      DNS
      133.32.126.40.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      133.32.126.40.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      23.58.20.217.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      23.58.20.217.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      43.58.199.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      43.58.199.20.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      43.58.199.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      43.58.199.20.in-addr.arpa
      IN PTR
    • flag-us
      DNS
      86.23.85.13.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      86.23.85.13.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      206.23.85.13.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      206.23.85.13.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      73.190.18.2.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      73.190.18.2.in-addr.arpa
      IN PTR
      Response
      73.190.18.2.in-addr.arpa
      IN PTR
      a2-18-190-73deploystaticakamaitechnologiescom
    • flag-us
      DNS
      240.221.184.93.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      240.221.184.93.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
    No results found
    • 8.8.8.8:53
      133.32.126.40.in-addr.arpa
      dns
      72 B
      158 B
      1
      1

      DNS Request

      133.32.126.40.in-addr.arpa

    • 8.8.8.8:53
      23.58.20.217.in-addr.arpa
      dns
      71 B
      131 B
      1
      1

      DNS Request

      23.58.20.217.in-addr.arpa

    • 8.8.8.8:53
      43.58.199.20.in-addr.arpa
      dns
      142 B
      157 B
      2
      1

      DNS Request

      43.58.199.20.in-addr.arpa

      DNS Request

      43.58.199.20.in-addr.arpa

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

      DNS Request

      86.23.85.13.in-addr.arpa

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

      DNS Request

      206.23.85.13.in-addr.arpa

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

      DNS Request

      73.190.18.2.in-addr.arpa

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

      DNS Request

      240.221.184.93.in-addr.arpa

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

      DNS Request

      29.243.111.52.in-addr.arpa

    MITRE ATT&CK Enterprise v15

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