Analysis

  • max time kernel
    152s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 00:22

General

  • Target

    9bd3adadf387763988e9a6b344c900a9fe07ed3a9df96ab9a9efd5825be4fb82.exe

  • Size

    248KB

  • MD5

    39ad711e9aa6c16977978ed2bdcc3bd0

  • SHA1

    84044261617d2d9b27a30faee393495351be2a1d

  • SHA256

    9bd3adadf387763988e9a6b344c900a9fe07ed3a9df96ab9a9efd5825be4fb82

  • SHA512

    0dfee9486e33136d78e00c247d138c7832f8c50da20e10ab196a04d5da7b95628bef6ea5da5e0c48e14450c22e1fe12a7710e960c482e4e8e50af153e6e5308b

  • SSDEEP

    6144:DeppgtYo4UcJocwKvvkKF/fdsjCYd8bM+k2A/tTwL:CvgCJUcJocwKvvkKFdsjCYd8bMkA/tTc

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9bd3adadf387763988e9a6b344c900a9fe07ed3a9df96ab9a9efd5825be4fb82.exe
    "C:\Users\Admin\AppData\Local\Temp\9bd3adadf387763988e9a6b344c900a9fe07ed3a9df96ab9a9efd5825be4fb82.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:884
    • C:\Users\Admin\voimaw.exe
      "C:\Users\Admin\voimaw.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1676

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\voimaw.exe

    Filesize

    248KB

    MD5

    39ad711e9aa6c16977978ed2bdcc3bd0

    SHA1

    84044261617d2d9b27a30faee393495351be2a1d

    SHA256

    9bd3adadf387763988e9a6b344c900a9fe07ed3a9df96ab9a9efd5825be4fb82

    SHA512

    0dfee9486e33136d78e00c247d138c7832f8c50da20e10ab196a04d5da7b95628bef6ea5da5e0c48e14450c22e1fe12a7710e960c482e4e8e50af153e6e5308b

  • C:\Users\Admin\voimaw.exe

    Filesize

    248KB

    MD5

    39ad711e9aa6c16977978ed2bdcc3bd0

    SHA1

    84044261617d2d9b27a30faee393495351be2a1d

    SHA256

    9bd3adadf387763988e9a6b344c900a9fe07ed3a9df96ab9a9efd5825be4fb82

    SHA512

    0dfee9486e33136d78e00c247d138c7832f8c50da20e10ab196a04d5da7b95628bef6ea5da5e0c48e14450c22e1fe12a7710e960c482e4e8e50af153e6e5308b

  • \Users\Admin\voimaw.exe

    Filesize

    248KB

    MD5

    39ad711e9aa6c16977978ed2bdcc3bd0

    SHA1

    84044261617d2d9b27a30faee393495351be2a1d

    SHA256

    9bd3adadf387763988e9a6b344c900a9fe07ed3a9df96ab9a9efd5825be4fb82

    SHA512

    0dfee9486e33136d78e00c247d138c7832f8c50da20e10ab196a04d5da7b95628bef6ea5da5e0c48e14450c22e1fe12a7710e960c482e4e8e50af153e6e5308b

  • \Users\Admin\voimaw.exe

    Filesize

    248KB

    MD5

    39ad711e9aa6c16977978ed2bdcc3bd0

    SHA1

    84044261617d2d9b27a30faee393495351be2a1d

    SHA256

    9bd3adadf387763988e9a6b344c900a9fe07ed3a9df96ab9a9efd5825be4fb82

    SHA512

    0dfee9486e33136d78e00c247d138c7832f8c50da20e10ab196a04d5da7b95628bef6ea5da5e0c48e14450c22e1fe12a7710e960c482e4e8e50af153e6e5308b

  • memory/884-56-0x0000000076411000-0x0000000076413000-memory.dmp

    Filesize

    8KB

  • memory/884-64-0x0000000074711000-0x0000000074713000-memory.dmp

    Filesize

    8KB

  • memory/1676-59-0x0000000000000000-mapping.dmp