Analysis

  • max time kernel
    838s
  • max time network
    839s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 02:43

General

  • Target

    757e3242f6a2685ed9957c9e66235af889a7accead5719514719106d0b3c6fb4.exe

  • Size

    18KB

  • MD5

    d8e99fcae9a469c2081e7ff01675c361

  • SHA1

    ef7c4358717ec9d04b9adc8e40b1eb928885ebf0

  • SHA256

    757e3242f6a2685ed9957c9e66235af889a7accead5719514719106d0b3c6fb4

  • SHA512

    cd75242646dde33b7c792e9bf9fe976ce7f2dd1b02c5c97a4cf2f9f80cfae1bd44463fc2b0f9e002d17087358fafa298ca0d4dc4aff17405df95f13099c79b02

  • SSDEEP

    384:rd7gYWDhghSmeSQjkCg3St1bVz1LTwbZxssimS8dHDT:6lg/eLjkCwQQFx8SHX

Malware Config

Signatures

  • Renames multiple (786) files with added filename extension

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

  • Drops file in Drivers directory 2 IoCs
  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\757e3242f6a2685ed9957c9e66235af889a7accead5719514719106d0b3c6fb4.exe
    "C:\Users\Admin\AppData\Local\Temp\757e3242f6a2685ed9957c9e66235af889a7accead5719514719106d0b3c6fb4.exe"
    1⤵
    • Drops file in Drivers directory
    • Drops startup file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2136 -s 1532
      2⤵
        PID:2080

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2136-0-0x000007FEF5983000-0x000007FEF5984000-memory.dmp

      Filesize

      4KB

    • memory/2136-1-0x0000000000850000-0x000000000085A000-memory.dmp

      Filesize

      40KB

    • memory/2136-3-0x000007FEF5980000-0x000007FEF636C000-memory.dmp

      Filesize

      9.9MB

    • memory/2136-4-0x000007FEF5983000-0x000007FEF5984000-memory.dmp

      Filesize

      4KB

    • memory/2136-95-0x000007FEF5980000-0x000007FEF636C000-memory.dmp

      Filesize

      9.9MB

    • memory/2136-1586-0x000007FEF5980000-0x000007FEF636C000-memory.dmp

      Filesize

      9.9MB