Analysis

  • max time kernel
    122s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    15-10-2023 15:12

General

  • Target

    dac78d292e458aa9110548122dba3820_dll32_JC.dll

  • Size

    186KB

  • MD5

    dac78d292e458aa9110548122dba3820

  • SHA1

    a0e7763d31a1a4e39f3598f6a5a3b5239c358873

  • SHA256

    37b46b7e38d3bd9323533db6c1acf09292f973f9a84eef810c182aedd99c9ae1

  • SHA512

    f320061232d24b5cdee797786c6834b4fe7ed83d606f58592704cd500f90130ea80e0e8c476ee04983826eed425a8972d8a3e9be033e21ff16c0596d8f64123d

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0B:jDgtfRQUHPw06MoV2nwTBlhm85

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\dac78d292e458aa9110548122dba3820_dll32_JC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dac78d292e458aa9110548122dba3820_dll32_JC.dll,#1
      2⤵
        PID:1892

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads