Analysis

  • max time kernel
    41s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 22:01

General

  • Target

    991bba0a2f8de384e5f09eace59773a85fb3281f433229656b7649b445dfc03f.dll

  • Size

    367KB

  • MD5

    0031d095445067acf80dc794b0d9c75e

  • SHA1

    2d94bff05e9fbe1f49ba33af38f076574dca4c1d

  • SHA256

    991bba0a2f8de384e5f09eace59773a85fb3281f433229656b7649b445dfc03f

  • SHA512

    8c16fdee064c030c391523a8adb80bf79a3e9e0cb9fb8e92e000401efd13cf832096ab5930af01f3f672fd7f1205239fde126e4e446db989c01ee236262e0f8c

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0w:jDgtfRQUHPw06MoV2nwTBlhm8I

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\991bba0a2f8de384e5f09eace59773a85fb3281f433229656b7649b445dfc03f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\991bba0a2f8de384e5f09eace59773a85fb3281f433229656b7649b445dfc03f.dll,#1
      2⤵
        PID:944

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/944-55-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

      Filesize

      8KB