Analysis

  • max time kernel
    120s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    01-07-2022 05:11

General

  • Target

    3ec9e490b353d5e97d6ccc87f213e3031e35657f421b5cb4a115b77586d0101d.exe

  • Size

    632KB

  • MD5

    ca54b45fd7a57962114be53148aa1c04

  • SHA1

    d839665971f82acb1ac2772af36eea98685f36a8

  • SHA256

    3ec9e490b353d5e97d6ccc87f213e3031e35657f421b5cb4a115b77586d0101d

  • SHA512

    26645284fd9f5b902c4ecfa0322cfba44c56b259cf283d7abb7ae890a8601948852ed497025274e69b35319b8ef15543500cabd770da4930ceaa0d92c80ec1b4

Malware Config

Extracted

Family

netwire

C2

ddns.catamosky.biz:4886

Attributes
  • activex_autorun

    false

  • copy_executable

    false

  • delete_original

    false

  • host_id

    APRIL

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    false

  • offline_keylogger

    true

  • password

    Trinidado1@

  • registry_autorun

    false

  • use_mutex

    false

Signatures

  • NetWire RAT payload 8 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ec9e490b353d5e97d6ccc87f213e3031e35657f421b5cb4a115b77586d0101d.exe
    "C:\Users\Admin\AppData\Local\Temp\3ec9e490b353d5e97d6ccc87f213e3031e35657f421b5cb4a115b77586d0101d.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:924
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.vbs"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe
        "C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1176
        • C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe
          "C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe"
          4⤵
          • Executes dropped EXE
          PID:1952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe

    Filesize

    632KB

    MD5

    2adb7449a29781086ca9fefb912f7597

    SHA1

    8bbb58bd5d195c5965d673820a418e20406fbbe7

    SHA256

    ea160fafb1bab5be66d189eefff3bb6b13f811b87fbdd5638e9575617751513b

    SHA512

    f6e98a1a121fbb34219d6fffe04e080f7f385c1c00a39e5ff3cff4013b8dfad68e2ecd6522f11ddba8d913b1eb286b2271843c58baa8ab48878f7d8353ce26d8

  • C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe

    Filesize

    632KB

    MD5

    2adb7449a29781086ca9fefb912f7597

    SHA1

    8bbb58bd5d195c5965d673820a418e20406fbbe7

    SHA256

    ea160fafb1bab5be66d189eefff3bb6b13f811b87fbdd5638e9575617751513b

    SHA512

    f6e98a1a121fbb34219d6fffe04e080f7f385c1c00a39e5ff3cff4013b8dfad68e2ecd6522f11ddba8d913b1eb286b2271843c58baa8ab48878f7d8353ce26d8

  • C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe

    Filesize

    632KB

    MD5

    2adb7449a29781086ca9fefb912f7597

    SHA1

    8bbb58bd5d195c5965d673820a418e20406fbbe7

    SHA256

    ea160fafb1bab5be66d189eefff3bb6b13f811b87fbdd5638e9575617751513b

    SHA512

    f6e98a1a121fbb34219d6fffe04e080f7f385c1c00a39e5ff3cff4013b8dfad68e2ecd6522f11ddba8d913b1eb286b2271843c58baa8ab48878f7d8353ce26d8

  • C:\Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.vbs

    Filesize

    1024B

    MD5

    8c254fbd6a9183e388cb510059a11dd4

    SHA1

    79e292a390cd81eb843e65466e78d5c3a92e7a75

    SHA256

    1e9c0e9d8a3ddd025ba121c42a71120a9dd1f43d17010b6fa477191bca5dcce7

    SHA512

    7ca03fb3a4c92c1680405cd43b4f21066b3eef5cc1edfdaa996dd977828447e08abf4ce31b91ef6acb9263a6a92a146056418400b2f00d80f1fac5d04ad03951

  • \Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe

    Filesize

    632KB

    MD5

    2adb7449a29781086ca9fefb912f7597

    SHA1

    8bbb58bd5d195c5965d673820a418e20406fbbe7

    SHA256

    ea160fafb1bab5be66d189eefff3bb6b13f811b87fbdd5638e9575617751513b

    SHA512

    f6e98a1a121fbb34219d6fffe04e080f7f385c1c00a39e5ff3cff4013b8dfad68e2ecd6522f11ddba8d913b1eb286b2271843c58baa8ab48878f7d8353ce26d8

  • \Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe

    Filesize

    632KB

    MD5

    2adb7449a29781086ca9fefb912f7597

    SHA1

    8bbb58bd5d195c5965d673820a418e20406fbbe7

    SHA256

    ea160fafb1bab5be66d189eefff3bb6b13f811b87fbdd5638e9575617751513b

    SHA512

    f6e98a1a121fbb34219d6fffe04e080f7f385c1c00a39e5ff3cff4013b8dfad68e2ecd6522f11ddba8d913b1eb286b2271843c58baa8ab48878f7d8353ce26d8

  • \Users\Admin\AppData\Local\Temp\oturaaa\oturaaa.exe

    Filesize

    632KB

    MD5

    2adb7449a29781086ca9fefb912f7597

    SHA1

    8bbb58bd5d195c5965d673820a418e20406fbbe7

    SHA256

    ea160fafb1bab5be66d189eefff3bb6b13f811b87fbdd5638e9575617751513b

    SHA512

    f6e98a1a121fbb34219d6fffe04e080f7f385c1c00a39e5ff3cff4013b8dfad68e2ecd6522f11ddba8d913b1eb286b2271843c58baa8ab48878f7d8353ce26d8

  • memory/924-57-0x00000000761F1000-0x00000000761F3000-memory.dmp

    Filesize

    8KB

  • memory/924-56-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1176-73-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1176-64-0x0000000000000000-mapping.dmp

  • memory/1952-70-0x0000000000000000-mapping.dmp

  • memory/1952-72-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1952-74-0x0000000000400000-0x0000000000401000-memory.dmp

    Filesize

    4KB

  • memory/1952-76-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1952-77-0x0000000000401000-0x000000000042C000-memory.dmp

    Filesize

    172KB

  • memory/1952-78-0x0000000000401000-0x000000000042C000-memory.dmp

    Filesize

    172KB

  • memory/1952-79-0x0000000000401000-0x000000000042C000-memory.dmp

    Filesize

    172KB

  • memory/1952-80-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1952-81-0x0000000000401000-0x000000000042C000-memory.dmp

    Filesize

    172KB

  • memory/2036-58-0x0000000000000000-mapping.dmp