Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-07-2024 08:31

General

  • Target

    MedicareSign/astclient.dll

  • Size

    675KB

  • MD5

    7bf95a14483346eae890e6f4354c74a8

  • SHA1

    7de11b13cfe609d454bdd1393ed3d79a127c1b7c

  • SHA256

    719f267e41c95e36f99f5da0b9d5d70054d3e9c16e99fb1122948382b976d614

  • SHA512

    ef8b24e6079f05b3f1253e4487e1426639ceb5c1e13ca80046debd224353280e921ea765958f5b3f564983992a294e0242fd7bf4753cce24c51caa86557b51fe

  • SSDEEP

    12288:eVX2O3PmDFam0YxykOeH74CMDEnvpWua1ph0lhSMXlCIVktHFlAP:QGMmbjxyk144vpWukh0lhSMXlaDAP

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\MedicareSign\astclient.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\MedicareSign\astclient.dll,#1
      2⤵
      • Drops file in System32 directory
      PID:1028
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 728
        3⤵
        • Program crash
        PID:5108
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1028 -ip 1028
    1⤵
      PID:3844

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads