Analysis

  • max time kernel
    77s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    04/05/2022, 05:16

General

  • Target
    PO-9768708-Hyundai-09221-6138 pdf.exe
  • Size 702KB
  • Sample220504-fx5ycsdba4
  • SHA256 869fa23919d381e4af0d8c04881d65ad842cb96020da5c1e16f65c48190d3eef
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • netwire

C2
  • rozayleekimishere.duckdns.org:2983

Attributes
  • activex_autorun

    false

  • copy_executable

    false

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • lock_executable

    false

  • offline_keylogger

    false

  • password

    Password

  • 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 behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO-9768708-Hyundai-09221-6138 pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-9768708-Hyundai-09221-6138 pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4280
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KPwtapzko.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2044
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KPwtapzko" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDC0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:536
    • C:\Users\Admin\AppData\Local\Temp\PO-9768708-Hyundai-09221-6138 pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\PO-9768708-Hyundai-09221-6138 pdf.exe"
      2⤵
        PID:5060
      • C:\Users\Admin\AppData\Local\Temp\PO-9768708-Hyundai-09221-6138 pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\PO-9768708-Hyundai-09221-6138 pdf.exe"
        2⤵
          PID:4392
        • C:\Users\Admin\AppData\Local\Temp\PO-9768708-Hyundai-09221-6138 pdf.exe
          "C:\Users\Admin\AppData\Local\Temp\PO-9768708-Hyundai-09221-6138 pdf.exe"
          2⤵
            PID:3140

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              tmpCDC0.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\tmpCDC0.tmp
              • Size 1KB
              • SHA256 bcd8ec3b0f4d71ebb4d27fa84803ff28a42c9c73c5f8b2ac270487cee8cd68ac
              • MD5 SHA1 SHA512

              memory/2044-151-0x0000000006020000-0x0000000006052000-memory.dmp

              memory/2044-154-0x00000000073B0000-0x0000000007A2A000-memory.dmp

              memory/2044-160-0x0000000007080000-0x0000000007088000-memory.dmp

              memory/2044-159-0x00000000070A0000-0x00000000070BA000-memory.dmp

              memory/2044-158-0x0000000006F90000-0x0000000006F9E000-memory.dmp

              memory/2044-138-0x0000000002110000-0x0000000002146000-memory.dmp

              memory/2044-157-0x0000000006FE0000-0x0000000007076000-memory.dmp

              memory/2044-140-0x0000000004D00000-0x0000000005328000-memory.dmp

              memory/2044-156-0x0000000006DD0000-0x0000000006DDA000-memory.dmp

              memory/2044-155-0x0000000006D60000-0x0000000006D7A000-memory.dmp

              memory/2044-153-0x0000000006000000-0x000000000601E000-memory.dmp

              memory/2044-152-0x0000000071120000-0x000000007116C000-memory.dmp

              memory/2044-145-0x0000000004980000-0x00000000049A2000-memory.dmp

              memory/2044-150-0x0000000005A60000-0x0000000005A7E000-memory.dmp

              memory/2044-147-0x00000000053A0000-0x0000000005406000-memory.dmp

              memory/3140-149-0x0000000000400000-0x0000000000450000-memory.dmp

              memory/3140-148-0x0000000000400000-0x0000000000450000-memory.dmp

              memory/3140-146-0x0000000000400000-0x0000000000450000-memory.dmp

              memory/3140-144-0x0000000000400000-0x0000000000450000-memory.dmp

              memory/4280-135-0x00000000009D0000-0x0000000000A36000-memory.dmp

              memory/4280-130-0x0000000000080000-0x0000000000134000-memory.dmp

              memory/4280-131-0x00000000050F0000-0x0000000005694000-memory.dmp

              memory/4280-132-0x0000000004B40000-0x0000000004BD2000-memory.dmp

              memory/4280-133-0x0000000004AC0000-0x0000000004ACA000-memory.dmp

              memory/4280-134-0x0000000008310000-0x00000000083AC000-memory.dmp