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Analysis

  • max time kernel
    449s
  • max time network
    454s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/01/2024, 14:39

General

  • Target

    111fb06de858ef843c882e40f34caf958054b0eeaeea877c49a23b1111916e8b.exe

  • Size

    662KB

  • MD5

    b6c70f89f19670923f3f490ed5331395

  • SHA1

    24c9df54d779be27508203666dc48a3fdabb0b87

  • SHA256

    111fb06de858ef843c882e40f34caf958054b0eeaeea877c49a23b1111916e8b

  • SHA512

    8a49a73c4086be3ae657452816070d7bf79dc653a9a7c783262348788ee80584c4456e3056f1427f4f1b8433de54437b996bfbede100430b2f7168c130511b0b

  • SSDEEP

    12288:IG86nitqrIT6Eqk56i258EJsUQUUJ9LBHd2Uo:57itqr3e6d18J9LBHd2n

Malware Config

Signatures

  • Renames multiple (3031) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 64 IoCs
  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Program crash 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\111fb06de858ef843c882e40f34caf958054b0eeaeea877c49a23b1111916e8b.exe
    "C:\Users\Admin\AppData\Local\Temp\111fb06de858ef843c882e40f34caf958054b0eeaeea877c49a23b1111916e8b.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    PID:2496
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 9296
      2⤵
      • Program crash
      PID:5940
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 18964
      2⤵
      • Program crash
      PID:6220
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2496 -ip 2496
    1⤵
      PID:6924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2496 -ip 2496
      1⤵
        PID:6864

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2496-1-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/2496-0-0x0000000000650000-0x00000000006FA000-memory.dmp

        Filesize

        680KB

      • memory/2496-3-0x00000000050F0000-0x0000000005182000-memory.dmp

        Filesize

        584KB

      • memory/2496-2-0x0000000005770000-0x0000000005D14000-memory.dmp

        Filesize

        5.6MB

      • memory/2496-6-0x0000000005270000-0x0000000005280000-memory.dmp

        Filesize

        64KB

      • memory/2496-13-0x0000000005240000-0x000000000524A000-memory.dmp

        Filesize

        40KB

      • memory/2496-137-0x0000000010F90000-0x0000000010FB2000-memory.dmp

        Filesize

        136KB

      • memory/2496-136-0x0000000005270000-0x0000000005280000-memory.dmp

        Filesize

        64KB

      • memory/2496-1149-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/2496-1246-0x0000000005270000-0x0000000005280000-memory.dmp

        Filesize

        64KB

      • memory/2496-1402-0x0000000005270000-0x0000000005280000-memory.dmp

        Filesize

        64KB

      • memory/2496-6415-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB