Analysis

  • max time kernel
    114s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2024 15:23

General

  • Target

    4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe

  • Size

    629KB

  • MD5

    280baa14b25c23e63122a4028928dff0

  • SHA1

    8070c5e450768312a50c64be6edc386b009bea77

  • SHA256

    4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226

  • SHA512

    26b96a7b246c3abaa02a989ea1e90a9ede181133f8a1e1b9605b3812f1505527d4164e14c169c73773e5872881bfa512793cffb381110c4a3b4f160e307f0f6f

  • SSDEEP

    12288:6dbG8Q1q8vDd/e6REdJqTu5XWN62tlN3d8SPzG2gvXqQ4tqXZUwxTJ:n8C7pecAMC5XKvNt8S7Nsy4FlJ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

pnauco5.ddns.net:1664

Mutex

cde38e58-d99c-4068-b775-59569bc2e8ce

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    pnauco5.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-07-03T06:48:27.569053036Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1664

  • default_group

    NEW

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    cde38e58-d99c-4068-b775-59569bc2e8ce

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    pnauco5.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe
    "C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3944
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4224
    • C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe
      "C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4468
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9F19.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2500
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA17C.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2984
  • 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 --field-trial-handle=4324,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4340 /prefetch:8
    1⤵
      PID:4092

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tnlsrtkf.wty.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp9F19.tmp

      Filesize

      1KB

      MD5

      b674601d371594f10788817896dc1ac2

      SHA1

      04ab51c106292c6c5a7de234fb28105a9f684895

      SHA256

      67328ea8324f47a48a58d1c49f5504bebc5a62eedb9ef0e7cb802dcfc294f3eb

      SHA512

      eabbe97492be8f803105d674a68fc80e3e7d115f1345e55cdc5e79081de809874a8104f4c794d54ede18bdc3e0756ef2c618bf23dbc7b461a6c9cb5e2f885973

    • C:\Users\Admin\AppData\Local\Temp\tmpA17C.tmp

      Filesize

      1KB

      MD5

      a246b3561d823177f3586e629f144233

      SHA1

      0f05d12e55a1d2e5e6a4f307c193882fba093315

      SHA256

      6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52

      SHA512

      4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d

    • memory/3944-4-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/3944-5-0x00000000052C0000-0x00000000052CA000-memory.dmp

      Filesize

      40KB

    • memory/3944-6-0x0000000006B90000-0x0000000006BA2000-memory.dmp

      Filesize

      72KB

    • memory/3944-7-0x000000007460E000-0x000000007460F000-memory.dmp

      Filesize

      4KB

    • memory/3944-8-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/3944-9-0x0000000006E60000-0x0000000006EDA000-memory.dmp

      Filesize

      488KB

    • memory/3944-10-0x0000000009560000-0x00000000095FC000-memory.dmp

      Filesize

      624KB

    • memory/3944-3-0x0000000005200000-0x0000000005292000-memory.dmp

      Filesize

      584KB

    • memory/3944-2-0x0000000005860000-0x0000000005E04000-memory.dmp

      Filesize

      5.6MB

    • memory/3944-15-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/3944-0-0x000000007460E000-0x000000007460F000-memory.dmp

      Filesize

      4KB

    • memory/3944-1-0x0000000000780000-0x0000000000824000-memory.dmp

      Filesize

      656KB

    • memory/4224-39-0x0000000006120000-0x000000000616C000-memory.dmp

      Filesize

      304KB

    • memory/4224-18-0x0000000004CF0000-0x0000000005318000-memory.dmp

      Filesize

      6.2MB

    • memory/4224-20-0x0000000004CA0000-0x0000000004CC2000-memory.dmp

      Filesize

      136KB

    • memory/4224-83-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4224-23-0x0000000005500000-0x0000000005566000-memory.dmp

      Filesize

      408KB

    • memory/4224-17-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4224-22-0x0000000005490000-0x00000000054F6000-memory.dmp

      Filesize

      408KB

    • memory/4224-35-0x0000000005570000-0x00000000058C4000-memory.dmp

      Filesize

      3.3MB

    • memory/4224-36-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4224-16-0x0000000002240000-0x0000000002276000-memory.dmp

      Filesize

      216KB

    • memory/4224-38-0x0000000005B60000-0x0000000005B7E000-memory.dmp

      Filesize

      120KB

    • memory/4224-64-0x0000000007090000-0x00000000070A1000-memory.dmp

      Filesize

      68KB

    • memory/4224-80-0x00000000071B0000-0x00000000071B8000-memory.dmp

      Filesize

      32KB

    • memory/4224-79-0x00000000071D0000-0x00000000071EA000-memory.dmp

      Filesize

      104KB

    • memory/4224-78-0x00000000070D0000-0x00000000070E4000-memory.dmp

      Filesize

      80KB

    • memory/4224-77-0x00000000070C0000-0x00000000070CE000-memory.dmp

      Filesize

      56KB

    • memory/4224-47-0x00000000060C0000-0x00000000060F2000-memory.dmp

      Filesize

      200KB

    • memory/4224-48-0x00000000701A0000-0x00000000701EC000-memory.dmp

      Filesize

      304KB

    • memory/4224-58-0x0000000006100000-0x000000000611E000-memory.dmp

      Filesize

      120KB

    • memory/4224-59-0x0000000006E20000-0x0000000006EC3000-memory.dmp

      Filesize

      652KB

    • memory/4224-60-0x0000000007550000-0x0000000007BCA000-memory.dmp

      Filesize

      6.5MB

    • memory/4224-61-0x0000000006220000-0x000000000623A000-memory.dmp

      Filesize

      104KB

    • memory/4224-62-0x0000000006F00000-0x0000000006F0A000-memory.dmp

      Filesize

      40KB

    • memory/4224-63-0x0000000007110000-0x00000000071A6000-memory.dmp

      Filesize

      600KB

    • memory/4468-14-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4468-67-0x0000000006A60000-0x0000000006A7A000-memory.dmp

      Filesize

      104KB

    • memory/4468-66-0x0000000006A50000-0x0000000006A62000-memory.dmp

      Filesize

      72KB

    • memory/4468-70-0x0000000006AB0000-0x0000000006ABE000-memory.dmp

      Filesize

      56KB

    • memory/4468-71-0x0000000006AC0000-0x0000000006AD4000-memory.dmp

      Filesize

      80KB

    • memory/4468-69-0x0000000006AA0000-0x0000000006AB2000-memory.dmp

      Filesize

      72KB

    • memory/4468-68-0x0000000006A90000-0x0000000006A9E000-memory.dmp

      Filesize

      56KB

    • memory/4468-72-0x0000000006AD0000-0x0000000006AE0000-memory.dmp

      Filesize

      64KB

    • memory/4468-73-0x0000000006AF0000-0x0000000006B04000-memory.dmp

      Filesize

      80KB

    • memory/4468-75-0x0000000006B20000-0x0000000006B4E000-memory.dmp

      Filesize

      184KB

    • memory/4468-76-0x0000000006B60000-0x0000000006B74000-memory.dmp

      Filesize

      80KB

    • memory/4468-74-0x0000000006B10000-0x0000000006B1E000-memory.dmp

      Filesize

      56KB

    • memory/4468-43-0x00000000052C0000-0x00000000052CA000-memory.dmp

      Filesize

      40KB

    • memory/4468-45-0x0000000006200000-0x000000000620A000-memory.dmp

      Filesize

      40KB

    • memory/4468-44-0x00000000052D0000-0x00000000052EE000-memory.dmp

      Filesize

      120KB

    • memory/4468-11-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/4468-24-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4468-85-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/4468-86-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB