Analysis

  • max time kernel
    194s
  • max time network
    211s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2022 12:56

General

  • Target

    3e48e87813c100363cd0df6659a9dd9b9d481d4f47919ac0698c7b83930d096a.dll

  • Size

    280KB

  • MD5

    2fc145976be49b8e5de37c6ec04fd4a0

  • SHA1

    c5ee7206734edb9c4b0a1e5189ea421e44c7a92e

  • SHA256

    3e48e87813c100363cd0df6659a9dd9b9d481d4f47919ac0698c7b83930d096a

  • SHA512

    420076acd02c2c1826e6ed3534744566ce1589e98573c8492e9cc534c83f7619f5ad2db936ebc177c50f7039b5037eefa02063ca72f0ccc49977cadc9c9eac49

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0v:jDgtfRQUHPw06MoV2nwTBlhm83

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\3e48e87813c100363cd0df6659a9dd9b9d481d4f47919ac0698c7b83930d096a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e48e87813c100363cd0df6659a9dd9b9d481d4f47919ac0698c7b83930d096a.dll,#1
      2⤵
        PID:3136

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/3136-132-0x0000000000000000-mapping.dmp