Analysis

  • max time kernel
    187s
  • max time network
    229s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2022 08:42

General

  • Target

    a575d615df8bfbaa6ee4ce8967d86239ced7df713cffe97fa379f4555d506620.dll

  • Size

    413KB

  • MD5

    42095a27c6261fa58973d2fd5a7544af

  • SHA1

    7a97ab6c0ff5749b02e1412f78d0376375192f82

  • SHA256

    a575d615df8bfbaa6ee4ce8967d86239ced7df713cffe97fa379f4555d506620

  • SHA512

    77c9b1e542bfc1e2b4bd91b8bb2cda53daf2ea0cbbb615d640700fdcbfef510fc8d1d384b44637ebfaf06d64fca55776f252384f26850f6b1419df04db4be40c

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0A:jDgtfRQUHPw06MoV2nwTBlhm84

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\a575d615df8bfbaa6ee4ce8967d86239ced7df713cffe97fa379f4555d506620.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a575d615df8bfbaa6ee4ce8967d86239ced7df713cffe97fa379f4555d506620.dll,#1
      2⤵
        PID:5016

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/5016-132-0x0000000000000000-mapping.dmp