Analysis

  • max time kernel
    183s
  • max time network
    187s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:39

General

  • Target

    FACTURA09473773.exe

  • Size

    869KB

  • MD5

    765188ba741378b933fe5031593c3237

  • SHA1

    0e9bcebaba138d15f24de1129cc8799905a5b16c

  • SHA256

    481f3d87a7521d78973241b978e076e2a19beacd54a2307d444f760e47f5589e

  • SHA512

    a3b45caf7ac994740f919ed7eda0e596dcbd20ce991e9c159201124f63b3db8181019806f5daa0b5decce6e093613c6145cb4b1b97b0fbefc243c16346f481a3

  • SSDEEP

    24576:l1CFvW+Sg3pOVI+jODkjxKgr83io3F93:lYFua3iI+6Ijsgr8SoV9

Malware Config

Extracted

Family

netwire

C2

podzeye2.duckdns.org:4433

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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FACTURA09473773.exe
    "C:\Users\Admin\AppData\Local\Temp\FACTURA09473773.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4740
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pyrkZKyvPtKPQ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:804
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pyrkZKyvPtKPQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD707.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1628
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:2656

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Scripting

    1
    T1064

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpD707.tmp
      Filesize

      1KB

      MD5

      a2077ddd67c1336e9515f6e546c5ebef

      SHA1

      5c730200a20090d2aaf87772da46c8ea3b49cc9c

      SHA256

      5f5d07e83a8568637df4c9225b005c99616165299d01650e8f0b64dc0a5b9fa7

      SHA512

      999e0572d5f55774d770beedefd5ebbd6a8ddb22dcf443b6b2cbf12ec18fa750146ed86f046ed9e4b28cf384e09e2bbd1242bc8d7e4510d0a1182dccbab8b13f

    • memory/804-153-0x0000000006150000-0x000000000616E000-memory.dmp
      Filesize

      120KB

    • memory/804-152-0x0000000073390000-0x00000000733DC000-memory.dmp
      Filesize

      304KB

    • memory/804-146-0x0000000005590000-0x00000000055F6000-memory.dmp
      Filesize

      408KB

    • memory/804-159-0x00000000071E0000-0x00000000071FA000-memory.dmp
      Filesize

      104KB

    • memory/804-137-0x0000000000000000-mapping.dmp
    • memory/804-157-0x0000000007120000-0x00000000071B6000-memory.dmp
      Filesize

      600KB

    • memory/804-139-0x0000000002330000-0x0000000002366000-memory.dmp
      Filesize

      216KB

    • memory/804-156-0x0000000006F20000-0x0000000006F2A000-memory.dmp
      Filesize

      40KB

    • memory/804-141-0x0000000004D80000-0x00000000053A8000-memory.dmp
      Filesize

      6.2MB

    • memory/804-142-0x0000000004C50000-0x0000000004C72000-memory.dmp
      Filesize

      136KB

    • memory/804-143-0x0000000005420000-0x0000000005486000-memory.dmp
      Filesize

      408KB

    • memory/804-155-0x0000000006EA0000-0x0000000006EBA000-memory.dmp
      Filesize

      104KB

    • memory/804-160-0x00000000071C0000-0x00000000071C8000-memory.dmp
      Filesize

      32KB

    • memory/804-158-0x00000000070D0000-0x00000000070DE000-memory.dmp
      Filesize

      56KB

    • memory/804-151-0x0000000006170000-0x00000000061A2000-memory.dmp
      Filesize

      200KB

    • memory/804-154-0x00000000074F0000-0x0000000007B6A000-memory.dmp
      Filesize

      6.5MB

    • memory/804-150-0x0000000004AF0000-0x0000000004B0E000-memory.dmp
      Filesize

      120KB

    • memory/1628-138-0x0000000000000000-mapping.dmp
    • memory/2656-149-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

    • memory/2656-148-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

    • memory/2656-145-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

    • memory/2656-144-0x0000000000000000-mapping.dmp
    • memory/2656-147-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

    • memory/4740-134-0x0000000004D80000-0x0000000004E12000-memory.dmp
      Filesize

      584KB

    • memory/4740-132-0x0000000000310000-0x00000000003EE000-memory.dmp
      Filesize

      888KB

    • memory/4740-133-0x0000000005230000-0x00000000057D4000-memory.dmp
      Filesize

      5.6MB

    • memory/4740-136-0x0000000008A00000-0x0000000008A9C000-memory.dmp
      Filesize

      624KB

    • memory/4740-135-0x0000000004E30000-0x0000000004E3A000-memory.dmp
      Filesize

      40KB