Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/12/2024, 23:44 UTC

General

  • Target

    76436512E3E3A9DCA38F5EAF312FE323.dll

  • Size

    660KB

  • MD5

    76436512e3e3a9dca38f5eaf312fe323

  • SHA1

    503af6ad7617f847abbe509a907944f0e9213505

  • SHA256

    7d4ea4e69143df3f0f8fb9e4dee13c5251c4b1810d6b3a8626195906f00c0a49

  • SHA512

    aab595de7a3af9a3e7c480f953b392f42965348ffcda6a410eb990ae2c11c5a87f975b2ad2c34a147767b14325c60117af64f2bcea2813a7fbcee94ddfc951d9

  • SSDEEP

    12288:oIsMQVdsxSoqFsUzAbRb7aZJhztomX9mFu4Ou1GN3/k3jQlVUihjxWBZlUAxwqwX:nDQVdsxSoqFsGA6rX9mFujeMwQljhjxb

Malware Config

Extracted

Family

socks5systemz

Attributes
  • rc4_key

    i4hiea56#7b&dfw3

Signatures

  • Detect Socks5Systemz Payload 2 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • 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\76436512E3E3A9DCA38F5EAF312FE323.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\76436512E3E3A9DCA38F5EAF312FE323.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3812
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3812 -s 884
        3⤵
        • Program crash
        PID:4900
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3812 -ip 3812
    1⤵
      PID:452

    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
      21.49.80.91.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      21.49.80.91.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
      95.221.229.192.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      95.221.229.192.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      97.17.167.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      97.17.167.52.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      56.163.245.4.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      56.163.245.4.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      198.187.3.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      198.187.3.20.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      25.14.97.104.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      25.14.97.104.in-addr.arpa
      IN PTR
      Response
      25.14.97.104.in-addr.arpa
      IN PTR
      a104-97-14-25deploystaticakamaitechnologiescom
    • flag-us
      DNS
      88.210.23.2.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      88.210.23.2.in-addr.arpa
      IN PTR
      Response
      88.210.23.2.in-addr.arpa
      IN PTR
      a2-23-210-88deploystaticakamaitechnologiescom
    • flag-us
      DNS
      43.229.111.52.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      43.229.111.52.in-addr.arpa
      IN PTR
      Response
    No results found
    • 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
      21.49.80.91.in-addr.arpa
      dns
      70 B
      145 B
      1
      1

      DNS Request

      21.49.80.91.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
      95.221.229.192.in-addr.arpa
      dns
      73 B
      144 B
      1
      1

      DNS Request

      95.221.229.192.in-addr.arpa

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

      DNS Request

      97.17.167.52.in-addr.arpa

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

      DNS Request

      56.163.245.4.in-addr.arpa

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

      DNS Request

      198.187.3.20.in-addr.arpa

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

      DNS Request

      25.14.97.104.in-addr.arpa

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

      DNS Request

      88.210.23.2.in-addr.arpa

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

      DNS Request

      43.229.111.52.in-addr.arpa

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • memory/3812-0-0x00000000749A0000-0x0000000074A4D000-memory.dmp

      Filesize

      692KB

    • memory/3812-3-0x00000000749A0000-0x0000000074A4D000-memory.dmp

      Filesize

      692KB

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