Analysis

  • max time kernel
    181s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2022 15:05

General

  • Target

    9bc37d8047ad5712875ea70fc6af7c77627464a8a4571020f0a0817498fca766.dll

  • Size

    346KB

  • MD5

    05cde7fe4b14f2af2fee9040942ba4cc

  • SHA1

    dab6b16ce7b4fc668518f8002e690b79b4264675

  • SHA256

    9bc37d8047ad5712875ea70fc6af7c77627464a8a4571020f0a0817498fca766

  • SHA512

    8bf586730cb3a0d74c137600b9c32225ac7cca1eb5d13da5e22d148bb64b52574d4fc0a67776320012c01428d0d8a5a8484eb55849de93739d231d3af5dc8c26

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q09:jDgtfRQUHPw06MoV2nwTBlhm8V

Score
10/10

Malware Config

Signatures

  • Yunsip

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\9bc37d8047ad5712875ea70fc6af7c77627464a8a4571020f0a0817498fca766.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\9bc37d8047ad5712875ea70fc6af7c77627464a8a4571020f0a0817498fca766.dll,#1
      2⤵
        PID:728

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/728-132-0x0000000000000000-mapping.dmp