Analysis

  • max time kernel
    91s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2022 09:28

General

  • Target

    Confirmation slip.exe

  • Size

    747KB

  • MD5

    96a1edd287967c1c8cb228d5fa138001

  • SHA1

    a7a9024ee3561de8d23cbcc1d4b2d4aa833fd154

  • SHA256

    6e8bf76b6d1f39b8366169c0cd6dc4bee0946973b8f5c64baf7fd1bfd1846731

  • SHA512

    fe42e520d20bbc6d75604967e7d544c490b9f2356c2c73dbd7c111ad583c444cae25d8c61b40ab731ddb01d6e9602d1557a7e780120ea7d3bf9d164f1938f561

  • SSDEEP

    12288:vxDAwgixJr0GHaitiM1u102DZPMqjJ5nt0+9MK:pJrxtiMufFPXjrBe

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 3 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmation slip.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmation slip.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FmCkDaZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD3B0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:348
    • C:\Users\Admin\AppData\Local\Temp\Confirmation slip.exe
      "{path}"
      2⤵
        PID:1656

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpD3B0.tmp

      Filesize

      1KB

      MD5

      7aaec9f0843ec63527b442457685b20c

      SHA1

      16ca2f947bfae9ed07577c8a6b4d6ffa08a655ac

      SHA256

      2eedd47276bef7d9c7dadc3b63af1496afa0f7fc7c34b347b6c8b3b5779a3b63

      SHA512

      c1d8aca4810f5b02e38c689faeb1c7ebc9ae7813d3f3c60d9bf6780804fbc611efd975f6cf6a7acf7acd647af4389656c28eb62b7df4e8f468675614ac86b7e5

    • memory/348-138-0x0000000000000000-mapping.dmp

    • memory/1656-140-0x0000000000000000-mapping.dmp

    • memory/1656-141-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/1656-143-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/1656-144-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/3140-132-0x0000000000490000-0x0000000000552000-memory.dmp

      Filesize

      776KB

    • memory/3140-133-0x0000000005420000-0x00000000059C4000-memory.dmp

      Filesize

      5.6MB

    • memory/3140-134-0x0000000004F10000-0x0000000004FA2000-memory.dmp

      Filesize

      584KB

    • memory/3140-135-0x0000000004FB0000-0x000000000504C000-memory.dmp

      Filesize

      624KB

    • memory/3140-136-0x0000000004EF0000-0x0000000004EFA000-memory.dmp

      Filesize

      40KB

    • memory/3140-137-0x000000000CE00000-0x000000000CE66000-memory.dmp

      Filesize

      408KB