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Analysis

  • max time kernel
    151s
  • max time network
    74s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02/12/2022, 00:06

General

  • Target

    1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe

  • Size

    299KB

  • MD5

    1e679c8c8d32493ca5fe30ab75facdb0

  • SHA1

    1e9b53f2f823dc918098801c7a7dbbbf4e07e579

  • SHA256

    1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc

  • SHA512

    8271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14

  • SSDEEP

    3072:VXO42ZK/rUc+WmvohlclLtLjc+F3lywxXLLNjLSYrB5a4TqmOp0pkc9E2aNFf8:4KTUqjclLtf9xXLtfacD/

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\1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe
    "C:\Users\Admin\AppData\Local\Temp\1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.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:968
    • C:\Users\Admin\gscex.exe
      "C:\Users\Admin\gscex.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:1976

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\gscex.exe

    Filesize

    299KB

    MD5

    1e679c8c8d32493ca5fe30ab75facdb0

    SHA1

    1e9b53f2f823dc918098801c7a7dbbbf4e07e579

    SHA256

    1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc

    SHA512

    8271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14

  • C:\Users\Admin\gscex.exe

    Filesize

    299KB

    MD5

    1e679c8c8d32493ca5fe30ab75facdb0

    SHA1

    1e9b53f2f823dc918098801c7a7dbbbf4e07e579

    SHA256

    1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc

    SHA512

    8271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14

  • \Users\Admin\gscex.exe

    Filesize

    299KB

    MD5

    1e679c8c8d32493ca5fe30ab75facdb0

    SHA1

    1e9b53f2f823dc918098801c7a7dbbbf4e07e579

    SHA256

    1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc

    SHA512

    8271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14

  • \Users\Admin\gscex.exe

    Filesize

    299KB

    MD5

    1e679c8c8d32493ca5fe30ab75facdb0

    SHA1

    1e9b53f2f823dc918098801c7a7dbbbf4e07e579

    SHA256

    1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc

    SHA512

    8271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14

  • memory/968-56-0x0000000076831000-0x0000000076833000-memory.dmp

    Filesize

    8KB

  • memory/968-62-0x0000000074751000-0x0000000074753000-memory.dmp

    Filesize

    8KB