Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-11-2022 03:20

General

  • Target

    1f4c2415b407acbcf1770e9f56d6c9570e3cfd390d03e311470d8687fa92acc7.dll

  • Size

    351KB

  • MD5

    15eb9c60887b5a84c17c77b6534e2c70

  • SHA1

    a2243781315365a49e17ab4193c0f1be231cfb3a

  • SHA256

    1f4c2415b407acbcf1770e9f56d6c9570e3cfd390d03e311470d8687fa92acc7

  • SHA512

    917fb2d5179278ea28d8c80beb0b8a9df6353e97af32e7b305ab616e5628a1bb63c1bd7ae658828b08d8e4542358c026472299dab29c7494928933160de3c2de

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDp:o6C5AXbMn7UI1FoV2gwTBlrIckP7

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\1f4c2415b407acbcf1770e9f56d6c9570e3cfd390d03e311470d8687fa92acc7.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f4c2415b407acbcf1770e9f56d6c9570e3cfd390d03e311470d8687fa92acc7.dll,#1
      2⤵
        PID:3320

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/3320-132-0x0000000000000000-mapping.dmp