Analysis

  • max time kernel
    149s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-03-2024 19:04

General

  • Target

    Server_lkmm.ps1

  • Size

    431KB

  • MD5

    f3bbcf28264047524b0b16a20bb21340

  • SHA1

    fbf285e21112e4d7a484ef8cf90457fee27f2bd8

  • SHA256

    060e0c047d589d6d8e03ab222d1f0ca47125cb4208395c2b31e74826c551e6e6

  • SHA512

    927479f310f3d339b0558fdbc8aa37cf8a31b8fa1adf39aec3a524031665855465055cfee84ee7f1e32751a524f9c29e2cfffcef006822f1bc97b95e95eb6bd3

  • SSDEEP

    12288:cvPBMdT3nt3cPA17+zZ6pmtPK22Qa8HWT2hc8ivjG5A8QvmZjgT+C3c+tER2YMe8:qzEj

Malware Config

Extracted

Family

netwire

C2

185.19.85.172:1723

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

    Password

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Server_lkmm.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4132
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      2⤵
        PID:1808
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:2276

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hs3pvbvm.xgu.ps1
        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/1808-15-0x0000000000400000-0x0000000000433000-memory.dmp
        Filesize

        204KB

      • memory/1808-20-0x0000000000400000-0x0000000000433000-memory.dmp
        Filesize

        204KB

      • memory/1808-21-0x0000000000400000-0x0000000000433000-memory.dmp
        Filesize

        204KB

      • memory/4132-9-0x0000024E2D930000-0x0000024E2D952000-memory.dmp
        Filesize

        136KB

      • memory/4132-10-0x00007FFFD6310000-0x00007FFFD6DD1000-memory.dmp
        Filesize

        10.8MB

      • memory/4132-11-0x0000024E15430000-0x0000024E15440000-memory.dmp
        Filesize

        64KB

      • memory/4132-12-0x0000024E15430000-0x0000024E15440000-memory.dmp
        Filesize

        64KB

      • memory/4132-13-0x0000024E15430000-0x0000024E15440000-memory.dmp
        Filesize

        64KB

      • memory/4132-14-0x0000024E15460000-0x0000024E15476000-memory.dmp
        Filesize

        88KB

      • memory/4132-18-0x00007FFFD6310000-0x00007FFFD6DD1000-memory.dmp
        Filesize

        10.8MB