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Analysis

  • max time kernel
    150s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 16:42

General

  • Target

    434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe

  • Size

    304KB

  • MD5

    758044c649d49138161b78500cc806f4

  • SHA1

    210c74af6afe36b11cb2babb036651b0374d65bf

  • SHA256

    434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1

  • SHA512

    1c25c22e475d462616c020279caa87d3c5b26bcc8be538028306d9a021ef158d4936fd5d2699211411ee93281fd0788eb13546f403572301654535e0e247785d

  • SSDEEP

    3072:Hff1i2Dwhe6YIRnbXtcU7n4zKqc+5k1op2aEaDFHT+7pvPxvGLY:Yxbz+kxla8xn

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
  • 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\434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe
    "C:\Users\Admin\AppData\Local\Temp\434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1552
    • C:\Users\Admin\lexow.exe
      "C:\Users\Admin\lexow.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:900

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\lexow.exe

    Filesize

    304KB

    MD5

    3234bd987d3418e824aa5ad1cc2c773b

    SHA1

    b0af80dbb206e43410c0c88c55722056a60361bf

    SHA256

    19698bb13fe50a9888391b6cf464c4403e6ad37028e407f531ffa078e805eb17

    SHA512

    5fd25517f8a144ef9a9e5c238815552ed02c9ebb43fe27012066fdeaf47af9f3db15b043dc6142d1985454d15a93b0ec866d65c2b00c7dddb1d9e4f672a96ac1

  • C:\Users\Admin\lexow.exe

    Filesize

    304KB

    MD5

    3234bd987d3418e824aa5ad1cc2c773b

    SHA1

    b0af80dbb206e43410c0c88c55722056a60361bf

    SHA256

    19698bb13fe50a9888391b6cf464c4403e6ad37028e407f531ffa078e805eb17

    SHA512

    5fd25517f8a144ef9a9e5c238815552ed02c9ebb43fe27012066fdeaf47af9f3db15b043dc6142d1985454d15a93b0ec866d65c2b00c7dddb1d9e4f672a96ac1

  • \Users\Admin\lexow.exe

    Filesize

    304KB

    MD5

    3234bd987d3418e824aa5ad1cc2c773b

    SHA1

    b0af80dbb206e43410c0c88c55722056a60361bf

    SHA256

    19698bb13fe50a9888391b6cf464c4403e6ad37028e407f531ffa078e805eb17

    SHA512

    5fd25517f8a144ef9a9e5c238815552ed02c9ebb43fe27012066fdeaf47af9f3db15b043dc6142d1985454d15a93b0ec866d65c2b00c7dddb1d9e4f672a96ac1

  • \Users\Admin\lexow.exe

    Filesize

    304KB

    MD5

    3234bd987d3418e824aa5ad1cc2c773b

    SHA1

    b0af80dbb206e43410c0c88c55722056a60361bf

    SHA256

    19698bb13fe50a9888391b6cf464c4403e6ad37028e407f531ffa078e805eb17

    SHA512

    5fd25517f8a144ef9a9e5c238815552ed02c9ebb43fe27012066fdeaf47af9f3db15b043dc6142d1985454d15a93b0ec866d65c2b00c7dddb1d9e4f672a96ac1

  • memory/1552-56-0x0000000075681000-0x0000000075683000-memory.dmp

    Filesize

    8KB