Analysis

  • max time kernel
    24s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2022 04:31

General

  • Target

    f5d30a4a87567f1d07d76f912b9cf488e360f00c13dc93f1fa75059e25f6e3ee.dll

  • Size

    306KB

  • MD5

    081fba56d22e00c6a3868402b62c0a20

  • SHA1

    9be9758d423f714103469d3422738280f4c1f670

  • SHA256

    f5d30a4a87567f1d07d76f912b9cf488e360f00c13dc93f1fa75059e25f6e3ee

  • SHA512

    18f492919d3fce85fefac020e957b426b5eac72003ed542ab8a2c1932a5f6f4163ae162d404972f08173dccbe684bd6f2bf6c5b1b96881de25c5be3d2c83092f

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDH:o6C5AXbMn7UI1FoV2gwTBlrIckPZ

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\f5d30a4a87567f1d07d76f912b9cf488e360f00c13dc93f1fa75059e25f6e3ee.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f5d30a4a87567f1d07d76f912b9cf488e360f00c13dc93f1fa75059e25f6e3ee.dll,#1
      2⤵
        PID:976

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/976-55-0x00000000756B1000-0x00000000756B3000-memory.dmp

      Filesize

      8KB