Analysis

  • max time kernel
    43s
  • max time network
    112s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-09-2022 08:52

General

  • Target

    Confidential.exe

  • Size

    727KB

  • MD5

    77d64026e7224a2243bcb023766111e6

  • SHA1

    0124b3fc954340b6857c96b37e89e9eca64da43a

  • SHA256

    b002c64f7d0ff0a952b72f31609e683f17bb23313417f6639afdec47d9187b25

  • SHA512

    aa233f2db25af667574de2de6870cd6aa259b62700f604bf0478dac442a358a143853c8b8ad0c913f91b3b3e05662a3c9a7216cd1ca051fd0c20e5fbba40a0b8

  • SSDEEP

    12288:voxpAdRDmK6S8IB++Ll22jqZEp5E3qjJ5nl0+9MK:Z56SRB++LVMy1jrZe

Malware Config

Extracted

Family

netwire

C2

104.222.188.99:3360

zonedx.ddns.net:3360

zonedx.ddns.net:3363

104.222.188.99:3363

Attributes
  • activex_autorun

    false

  • copy_executable

    false

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    false

  • offline_keylogger

    true

  • password

    Password9090

  • 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.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confidential.exe
    "C:\Users\Admin\AppData\Local\Temp\Confidential.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HQbzNKKSw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6A0A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:920
    • C:\Users\Admin\AppData\Local\Temp\Confidential.exe
      "{path}"
      2⤵
        PID:288

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp6A0A.tmp

      Filesize

      1KB

      MD5

      912be3801ae0426e82a9bfc6747aa33e

      SHA1

      5a4517dafe9079e5c80699dbe8e43f1e7c01f8ee

      SHA256

      6faea3f41635235ff9d761cb509fb60ee18c446eabdee280bd79e3cabc2915bf

      SHA512

      542299a701e9079d0d728b202d3c6f85bd2b42fa0b8bb7cbae4fd445fd24309770e1e413d3b062eba763afb6df1a5f27ed1cb77dd80aedd1467e2337b9aa35c8

    • memory/288-66-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-70-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-64-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-76-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-68-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-75-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-61-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-67-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-72-0x000000000040242D-mapping.dmp

    • memory/288-71-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/288-62-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/920-59-0x0000000000000000-mapping.dmp

    • memory/1132-54-0x0000000000260000-0x000000000031C000-memory.dmp

      Filesize

      752KB

    • memory/1132-56-0x0000000000690000-0x00000000006B0000-memory.dmp

      Filesize

      128KB

    • memory/1132-57-0x0000000004D60000-0x0000000004DD8000-memory.dmp

      Filesize

      480KB

    • memory/1132-55-0x0000000075931000-0x0000000075933000-memory.dmp

      Filesize

      8KB

    • memory/1132-58-0x00000000008A0000-0x00000000008CE000-memory.dmp

      Filesize

      184KB