Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2022 08:42

General

  • Target

    b95078410f1265f596dc86dcd8e81dbf38d1faeea5f5bd905a300da0adba6f9b.dll

  • Size

    326KB

  • MD5

    a93f6b2a6de0b3a897c24047de499241

  • SHA1

    f1b49d053b648c8582b93385a72e7ef1c7f71379

  • SHA256

    b95078410f1265f596dc86dcd8e81dbf38d1faeea5f5bd905a300da0adba6f9b

  • SHA512

    019cfa5ab5b33debd0f5bd022bf631f18035b1321efd0c5fc1da5b03895cb5739140975841d3e15ac8626dd2107c7a251a1ba76aafb4f92baf07600d1efcfcb6

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0F:jDgtfRQUHPw06MoV2nwTBlhm89

Score
10/10

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b95078410f1265f596dc86dcd8e81dbf38d1faeea5f5bd905a300da0adba6f9b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b95078410f1265f596dc86dcd8e81dbf38d1faeea5f5bd905a300da0adba6f9b.dll,#1
      2⤵
        PID:1496

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1496-55-0x00000000761F1000-0x00000000761F3000-memory.dmp

      Filesize

      8KB