Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2022 08:46

General

  • Target

    3227a2cbe990558b96e933eaae08b8ba9315d3fb3ef5320088f11b83df083911.dll

  • Size

    420KB

  • MD5

    b9b7489ac8174fe770906be9c6347850

  • SHA1

    29993674da90eb2a5118cb76ada98b43b9ed304c

  • SHA256

    3227a2cbe990558b96e933eaae08b8ba9315d3fb3ef5320088f11b83df083911

  • SHA512

    aea854aceb293e8674edc53d2a1dcf914f1c0027d61446934abb0ee3abf8a7e5061275a649ac0e69266e35812cdd5b85658266013feaa3b677aa37ad27098f0b

  • SSDEEP

    3072:IDKpt9sSR0HUHPwZWLnWVfEAzV2IMwTBftZmc+z+f3Q0u:IDgtfRQUHPw06MoV2dwTBlxm8m

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\3227a2cbe990558b96e933eaae08b8ba9315d3fb3ef5320088f11b83df083911.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4512
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3227a2cbe990558b96e933eaae08b8ba9315d3fb3ef5320088f11b83df083911.dll,#1
      2⤵
        PID:3796

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads