Analysis

  • max time kernel
    158s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2022 21:20

General

  • Target

    82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a.dll

  • Size

    832KB

  • MD5

    4016ab60cce0601d0a2f54c067a1afe0

  • SHA1

    98c553eb636064a4e971507a06cc7dd15fd0c9ef

  • SHA256

    82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a

  • SHA512

    5cd1112408522283d0e6c55537ecad044f160ee502086c576c216c487df74920394d95976261c09d13548a98990437ba20bba993f15d21fb67d548064ce74295

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q04:jDgtfRQUHPw06MoV2nwTBlhm8w

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\82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\82bdac6e02abb36ffc886ad3f68250806b83fb50b3f9de03408e28b8f94d498a.dll,#1
      2⤵
        PID:1560

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1560-132-0x0000000000000000-mapping.dmp