Analysis

  • max time kernel
    203s
  • max time network
    218s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 18:24

General

  • Target

    52cc8b9da33ddd5746e47ccee7beb62bf48fbadbc10efb436ec82eee4db60336.exe

  • Size

    901KB

  • MD5

    025b64dd751bd9278d8005b18076bec8

  • SHA1

    9526be88916f8713d5eb0699652b1ae49ebaf03a

  • SHA256

    52cc8b9da33ddd5746e47ccee7beb62bf48fbadbc10efb436ec82eee4db60336

  • SHA512

    42385631fa7fe25b25eae89dfdb012d249dda820c8bc0807d68b2a18c2fdba0f938c9c44854ac21a0539822f091ae4dcd443aa13dcbff5b0b0fc71451732ceba

  • SSDEEP

    12288:xeXr/Cm+XQ9i8aMVkUet7EwBI+APuALDbFmZcZlyNGUO:xGr/Cm+X18zVkUetVI5uiDbFmZu4PO

Score
10/10

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Disables use of System Restore points 1 TTPs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 48 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 47 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies Control Panel 3 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52cc8b9da33ddd5746e47ccee7beb62bf48fbadbc10efb436ec82eee4db60336.exe
    "C:\Users\Admin\AppData\Local\Temp\52cc8b9da33ddd5746e47ccee7beb62bf48fbadbc10efb436ec82eee4db60336.exe"
    1⤵
    • Modifies system executable filetype association
    • Modifies visibility of file extensions in Explorer
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Users\Admin\AppData\Local\Temp\inf4D2.tmp
      C:\Users\Admin\AppData\Local\Temp\inf4D2.tmp
      2⤵
      • Executes dropped EXE
      PID:2172
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 916
      2⤵
      • Program crash
      PID:4808
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4716 -ip 4716
    1⤵
      PID:4584

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\inf4D2.tmp

      Filesize

      380KB

      MD5

      6d778e0f95447e6546553eeea709d03c

      SHA1

      811a005cf787c6ccbe0d9f1c36c1d49a9cb71fd1

      SHA256

      62abed7d45040381bbced97ea7b6c697b418448fd3322fd4bfb2bbfdb6155eb4

      SHA512

      a9401d8b077a48c0b6dd3443e62703d53513208f49d7b44d14f722f4c5400ffaca59582ca066d92d68a72aa96278bed1b2c5d8f1b85d5ef964d06e979a9ac09f

    • C:\Users\Admin\AppData\Local\Temp\inf4D2.tmp

      Filesize

      380KB

      MD5

      6d778e0f95447e6546553eeea709d03c

      SHA1

      811a005cf787c6ccbe0d9f1c36c1d49a9cb71fd1

      SHA256

      62abed7d45040381bbced97ea7b6c697b418448fd3322fd4bfb2bbfdb6155eb4

      SHA512

      a9401d8b077a48c0b6dd3443e62703d53513208f49d7b44d14f722f4c5400ffaca59582ca066d92d68a72aa96278bed1b2c5d8f1b85d5ef964d06e979a9ac09f

    • memory/2172-132-0x0000000000000000-mapping.dmp