Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-11-2023 02:36

General

  • Target

    NEAS.72187e83fd3d345b8d04be684e536b10_JC.dll

  • Size

    785KB

  • MD5

    72187e83fd3d345b8d04be684e536b10

  • SHA1

    a866f734d27499614a3b1453bd0c589b25c45814

  • SHA256

    84681deaad87b511feb0cf759c2b6f3bcb7a9e0b1d2d3767c2a49be64ff2a91e

  • SHA512

    2a589ebf7c7c352f8e34ce3609c504dd84aacba72842c3ce8435fe49bb66cfbedb952328d6489359014d56f9d964a185bfd494771babcf66c1375a6410f0775c

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q00:jDgtfRQUHPw06MoV2nwTBlhm88

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\NEAS.72187e83fd3d345b8d04be684e536b10_JC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5104
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.72187e83fd3d345b8d04be684e536b10_JC.dll,#1
      2⤵
        PID:5032

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads