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Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/03/2024, 13:52

General

  • Target

    b249daf0948009ddb53bcd35551d4a93.exe

  • Size

    96KB

  • MD5

    b249daf0948009ddb53bcd35551d4a93

  • SHA1

    457255d503f2579acbab5a573d148e9ee5110ffa

  • SHA256

    40ef6cb2805f3147cebe8c2e7df6017236aa82dc7a43d343e581e120aa3af4d5

  • SHA512

    4382846583cdb3e7a0d6beb2176f546b6489df3658d50adf5c5814cd2f551d960aab00328143ddde42844a94471e435f0b83fcfb5a144a5666c42caabaec88e6

  • SSDEEP

    1536:f5N6Eg52M9tyVQO8P8ychcsx7wjj3RJNEo/knRzdnynE7RldNEP8lijOevNIjnZ9:fyE/Melychcs4zR3Ek65RldqvCnz

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 52 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\b249daf0948009ddb53bcd35551d4a93.exe
    "C:\Users\Admin\AppData\Local\Temp\b249daf0948009ddb53bcd35551d4a93.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:1420
    • C:\Users\Admin\niewa.exe
      "C:\Users\Admin\niewa.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:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\niewa.exe

    Filesize

    96KB

    MD5

    646dbabe513f5e39950e935c70de8a56

    SHA1

    6d4ff2a51cc26d0d203aa584e0c930c3bef3509a

    SHA256

    43efab02de15bcf208c6ff1bc77c89530d09ea4d0cf0cb722698fd807c4ced8f

    SHA512

    137e22cf24c20936a521476fa7fe969c95af4c4d86a9a1a6db528ac91062d1a6556ee8312e57cc53c58e5cbf50ce659145304c4523695ee270522c66d5bafb5b