Analysis

  • max time kernel
    147s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-08-2022 13:53

General

  • Target

    Payment Receipt.exe

  • Size

    822KB

  • MD5

    85c078ec708786cf1bdb44465afd8eeb

  • SHA1

    528497fc0ab6bc410fb971e4558f56fb370036ea

  • SHA256

    59c95c7e7882d8eafd5314cda19c7fd39a25da55f7ea6109025693a17d5ec6f7

  • SHA512

    10c16726352536599c4cebbf570902e56d5886648be6fefe6a6a55ef73e3674f90c1199d691f47b813b86b78a55321c5bd96b99853bfb87606e22131ca40d45c

Malware Config

Extracted

Family

netwire

C2

185.140.53.61:3363

185.140.53.61:3365

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

    move4ward

  • registry_autorun

    false

  • use_mutex

    false

Signatures

  • NetWire RAT payload 4 IoCs
  • Netwire

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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\Payment Receipt.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Receipt.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TzHHooUqWc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp565D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4772
    • C:\Users\Admin\AppData\Local\Temp\Payment Receipt.exe
      "{path}"
      2⤵
        PID:2024

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp565D.tmp
      Filesize

      1KB

      MD5

      c41a38f96d98b391709e7326cc979839

      SHA1

      cd9b72869d5a39096a67b1db661c8587a08cafe7

      SHA256

      22d1d5eb989368ca80ffd2bcacd8e1a5e39b1d40291c3b0de4137a657d47342d

      SHA512

      5c0c80c4fd12ed856359258636bd08522636f1b6ec1c6887b07562917a679ca6d90486240f9202e42f6f7f0e9a08c08db2695739f8a0d1a0b046f871cff1fa67

    • memory/1096-130-0x0000000000AC0000-0x0000000000B94000-memory.dmp
      Filesize

      848KB

    • memory/1096-131-0x0000000005B40000-0x00000000060E4000-memory.dmp
      Filesize

      5.6MB

    • memory/1096-132-0x0000000005590000-0x0000000005622000-memory.dmp
      Filesize

      584KB

    • memory/1096-133-0x0000000005630000-0x00000000056CC000-memory.dmp
      Filesize

      624KB

    • memory/1096-134-0x0000000005520000-0x000000000552A000-memory.dmp
      Filesize

      40KB

    • memory/2024-137-0x0000000000000000-mapping.dmp
    • memory/2024-138-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/2024-140-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/2024-141-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/2024-142-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/4772-135-0x0000000000000000-mapping.dmp