Analysis

  • max time kernel
    43s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 12:54

General

  • Target

    803401bdeaff7d2ba6ea4ee68351bbce9bdb2f3523f60d974ced72e6c80dd33e.dll

  • Size

    607KB

  • MD5

    d15af39586f75dc18571074238bc7850

  • SHA1

    257bbec7e72ea30ba100c17ae80a11e75f3de562

  • SHA256

    803401bdeaff7d2ba6ea4ee68351bbce9bdb2f3523f60d974ced72e6c80dd33e

  • SHA512

    d050ae009359fbd07ef3c1b8b168435c468b0c1a4172586f08807e95afd0325523e96a2b99a78a768b2e6f396e47e5a44545eb5825355374f8796474888358fc

  • SSDEEP

    3072:oDKpt9sSR0HUHPwZWLnWVfEAzV2INwTBftZmc+z+f3Q0D:oDgtfRQUHPw06MoV2swTBlxm87

Score
10/10

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\803401bdeaff7d2ba6ea4ee68351bbce9bdb2f3523f60d974ced72e6c80dd33e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:328
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\803401bdeaff7d2ba6ea4ee68351bbce9bdb2f3523f60d974ced72e6c80dd33e.dll,#1
      2⤵
        PID:852

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/852-55-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

      Filesize

      8KB