Analysis

  • max time kernel
    152s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2022, 12:31

General

  • Target

    c199512ea61621255dc77075aae70d165a0dbd8275cca88acccb6af2e777ddd8.exe

  • Size

    29KB

  • MD5

    0346bcc28bd5f0992534bb038017ebfb

  • SHA1

    fee3309546e0ba57a8dac034051306842e8b2083

  • SHA256

    c199512ea61621255dc77075aae70d165a0dbd8275cca88acccb6af2e777ddd8

  • SHA512

    1046130581b548fa3153f97ce899ee31ef8c09a5f7bfee4ca11144b7ad9a0ec169b62b04ec320eb029e4aad24b8611b39e9efc7e7e2fd43708fb724489833157

  • SSDEEP

    768:Cvva/4EFJpxV782tAfd/p0xlNDxuXzsR7W/Bh:Oe5pxhftAfc1xSsFWph

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 9 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c199512ea61621255dc77075aae70d165a0dbd8275cca88acccb6af2e777ddd8.exe
    "C:\Users\Admin\AppData\Local\Temp\c199512ea61621255dc77075aae70d165a0dbd8275cca88acccb6af2e777ddd8.exe"
    1⤵
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" -u /s shimgvw.dll
      2⤵
        PID:1676

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1080-56-0x0000000076411000-0x0000000076413000-memory.dmp

      Filesize

      8KB

    • memory/1080-57-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/1080-60-0x0000000004161000-0x000000000448C000-memory.dmp

      Filesize

      3.2MB

    • memory/1080-61-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB