Analysis

  • max time kernel
    146s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2022 12:50

General

  • Target

    d4835f01eec094d7b69606d7fd152b314976938e1cc588347c59d534cf407ea1.dll

  • Size

    356KB

  • MD5

    18b6c681d44ccc9e782105805f84347e

  • SHA1

    7a5389592ac6a762c8a50cc3dd6f96e79c063f7b

  • SHA256

    d4835f01eec094d7b69606d7fd152b314976938e1cc588347c59d534cf407ea1

  • SHA512

    b5ebc47dabb49a97e462f539386c7c10ab2aacb81b949b839a26a64f207c3d58e208cb5ad8296daf58af3cccc7365b0f93ba8e57cc22515c01c6c772e546c82e

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0d: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\d4835f01eec094d7b69606d7fd152b314976938e1cc588347c59d534cf407ea1.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4720
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4835f01eec094d7b69606d7fd152b314976938e1cc588347c59d534cf407ea1.dll,#1
      2⤵
        PID:3768

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads