Analysis

  • max time kernel
    40s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2022 08:45

General

  • Target

    535978adf6989aeee37d45611eeed23d09b5772ad2508ae1c99f95836c0b79f6.dll

  • Size

    306KB

  • MD5

    bd8ff93293061314386b884627c40780

  • SHA1

    2892b838949f160adf5f20b992a8a52bdf45a221

  • SHA256

    535978adf6989aeee37d45611eeed23d09b5772ad2508ae1c99f95836c0b79f6

  • SHA512

    4af1acdb61e6bea91c388fa407e37b7139492ce1207d6248cc9cd04e9f6dcb711a15a7af04dade1da58e70353033365581cef28348c1d5fdb3d87d74c8688431

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0u:jDgtfRQUHPw06MoV2nwTBlhm8m

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\535978adf6989aeee37d45611eeed23d09b5772ad2508ae1c99f95836c0b79f6.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:968
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\535978adf6989aeee37d45611eeed23d09b5772ad2508ae1c99f95836c0b79f6.dll,#1
      2⤵
        PID:1568

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1568-55-0x0000000076831000-0x0000000076833000-memory.dmp

      Filesize

      8KB