Analysis

  • max time kernel
    151s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-10-2022 19:32

General

  • Target

    c95e77348941c858df79b1b0ce1629608e036ef6ac60381eb34c5f376f74f67c.dll

  • Size

    553KB

  • MD5

    50afbaf71a3cddeef648dbaa4ebb718b

  • SHA1

    4ef0f6910d7694011eab819036fe5356dd07e1b0

  • SHA256

    c95e77348941c858df79b1b0ce1629608e036ef6ac60381eb34c5f376f74f67c

  • SHA512

    55a9829ce975b5ce3b1a54aaa44fa8da3c7608a09eac090c1974a840660c0f8f1d0998ab69a768311be29d3d55057cc43dff7367b67265db868822c4536a1e28

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0E:jDgtfRQUHPw06MoV2nwTBlhm8s

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\c95e77348941c858df79b1b0ce1629608e036ef6ac60381eb34c5f376f74f67c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c95e77348941c858df79b1b0ce1629608e036ef6ac60381eb34c5f376f74f67c.dll,#1
      2⤵
        PID:1364

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1364-132-0x0000000000000000-mapping.dmp