Analysis

  • max time kernel
    44s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2022 08:43

General

  • Target

    97ed07dc8ef7f073b0ccef41ab6a21b6656b9f93b9621b253ca37ec6b81b3513.dll

  • Size

    366KB

  • MD5

    5fef991069f534550a10c99405ddcccf

  • SHA1

    ca312a1369b6e59a60b8f46f5f8f0adf9991fcee

  • SHA256

    97ed07dc8ef7f073b0ccef41ab6a21b6656b9f93b9621b253ca37ec6b81b3513

  • SHA512

    520038b1b0cbf041823a32557e3c30414d57176a6f4df9ba085c7905153386c5c7c0a016bd31e63eb7a8190bffd88ce9e008b970b9f5a77ea550649b0a95dd70

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0E:jDgtfRQUHPw06MoV2nwTBlhm88

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\97ed07dc8ef7f073b0ccef41ab6a21b6656b9f93b9621b253ca37ec6b81b3513.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\97ed07dc8ef7f073b0ccef41ab6a21b6656b9f93b9621b253ca37ec6b81b3513.dll,#1
      2⤵
        PID:844

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/844-55-0x0000000075601000-0x0000000075603000-memory.dmp

      Filesize

      8KB