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Analysis

  • max time kernel
    95s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/09/2024, 01:19

General

  • Target

    4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.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 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.exe
    "C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:412
    • 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\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4880
    • C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.exe
      "C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.exe"
      2⤵
        PID:3560
      • C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.exe
        "C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.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:4076
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "UPNP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD2A2.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1548
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "UPNP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD2F1.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1608

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ywx25tit.mmg.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpD2A2.tmp

      Filesize

      1KB

      MD5

      1ba3298e956e427c9e9e4bd39f6a4769

      SHA1

      29d0b963437e7c25ca335515dc23b8851b62bada

      SHA256

      ef5aaf504b9f3d6bfb28c79e91dec9f212a47971f28a269870c50590a32f00ab

      SHA512

      aa915d74ba0ede9d1c71dc2ae48ac4ea8b29f749b3e484554feb6c37e9481963f55905a15d05e75cb45a9e7889051121edaaa77bcee106160cb82e4619294d08

    • C:\Users\Admin\AppData\Local\Temp\tmpD2F1.tmp

      Filesize

      1KB

      MD5

      af9986f5e128fd8bd3ae748fcba6576d

      SHA1

      8060072c35108b48649a03be91803b97f1ad40a4

      SHA256

      f3242f6480b3d1a8f9285135fdce9a201c4802ce062eee4fb41c488a21d53303

      SHA512

      f35c8e1699905bc972ae48a5a4a9fd33ea04b2d851ffc1cb1d1573a2087121d803b4186a696b2edad10a9c46c388a478e105f5a730020b598aa9f483086dba38

    • memory/412-9-0x0000000007200000-0x000000000727A000-memory.dmp

      Filesize

      488KB

    • memory/412-2-0x0000000005B90000-0x0000000006134000-memory.dmp

      Filesize

      5.6MB

    • memory/412-6-0x0000000006F30000-0x0000000006F42000-memory.dmp

      Filesize

      72KB

    • memory/412-7-0x000000007518E000-0x000000007518F000-memory.dmp

      Filesize

      4KB

    • memory/412-8-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/412-1-0x0000000000B20000-0x0000000000BC4000-memory.dmp

      Filesize

      656KB

    • memory/412-10-0x0000000009900000-0x000000000999C000-memory.dmp

      Filesize

      624KB

    • memory/412-5-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/412-4-0x00000000055C0000-0x00000000055CA000-memory.dmp

      Filesize

      40KB

    • memory/412-3-0x00000000055E0000-0x0000000005672000-memory.dmp

      Filesize

      584KB

    • memory/412-15-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/412-0-0x000000007518E000-0x000000007518F000-memory.dmp

      Filesize

      4KB

    • memory/4076-11-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/4076-92-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4076-85-0x0000000006BC0000-0x0000000006BD4000-memory.dmp

      Filesize

      80KB

    • memory/4076-84-0x0000000006B80000-0x0000000006BAE000-memory.dmp

      Filesize

      184KB

    • memory/4076-83-0x0000000006B70000-0x0000000006B7E000-memory.dmp

      Filesize

      56KB

    • memory/4076-82-0x0000000006B50000-0x0000000006B64000-memory.dmp

      Filesize

      80KB

    • memory/4076-81-0x0000000006B30000-0x0000000006B40000-memory.dmp

      Filesize

      64KB

    • memory/4076-80-0x0000000006B20000-0x0000000006B34000-memory.dmp

      Filesize

      80KB

    • memory/4076-14-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4076-24-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4076-42-0x0000000005550000-0x000000000555A000-memory.dmp

      Filesize

      40KB

    • memory/4076-74-0x0000000006AA0000-0x0000000006AB2000-memory.dmp

      Filesize

      72KB

    • memory/4076-93-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4076-44-0x0000000006240000-0x000000000624A000-memory.dmp

      Filesize

      40KB

    • memory/4076-43-0x0000000005560000-0x000000000557E000-memory.dmp

      Filesize

      120KB

    • memory/4076-78-0x0000000006B00000-0x0000000006B0C000-memory.dmp

      Filesize

      48KB

    • memory/4076-79-0x0000000006B10000-0x0000000006B1E000-memory.dmp

      Filesize

      56KB

    • memory/4076-77-0x0000000006AF0000-0x0000000006B02000-memory.dmp

      Filesize

      72KB

    • memory/4076-76-0x0000000006AE0000-0x0000000006AEE000-memory.dmp

      Filesize

      56KB

    • memory/4076-75-0x0000000006AB0000-0x0000000006ACA000-memory.dmp

      Filesize

      104KB

    • memory/4880-16-0x0000000004E30000-0x0000000004E66000-memory.dmp

      Filesize

      216KB

    • memory/4880-61-0x0000000007D40000-0x00000000083BA000-memory.dmp

      Filesize

      6.5MB

    • memory/4880-62-0x0000000007700000-0x000000000771A000-memory.dmp

      Filesize

      104KB

    • memory/4880-63-0x0000000007770000-0x000000000777A000-memory.dmp

      Filesize

      40KB

    • memory/4880-64-0x0000000007980000-0x0000000007A16000-memory.dmp

      Filesize

      600KB

    • memory/4880-65-0x0000000007900000-0x0000000007911000-memory.dmp

      Filesize

      68KB

    • memory/4880-66-0x0000000007930000-0x000000000793E000-memory.dmp

      Filesize

      56KB

    • memory/4880-67-0x0000000007940000-0x0000000007954000-memory.dmp

      Filesize

      80KB

    • memory/4880-68-0x0000000007A40000-0x0000000007A5A000-memory.dmp

      Filesize

      104KB

    • memory/4880-69-0x0000000007A20000-0x0000000007A28000-memory.dmp

      Filesize

      32KB

    • memory/4880-72-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4880-60-0x00000000073F0000-0x0000000007493000-memory.dmp

      Filesize

      652KB

    • memory/4880-59-0x0000000006970000-0x000000000698E000-memory.dmp

      Filesize

      120KB

    • memory/4880-49-0x0000000070C80000-0x0000000070CCC000-memory.dmp

      Filesize

      304KB

    • memory/4880-48-0x0000000006990000-0x00000000069C2000-memory.dmp

      Filesize

      200KB

    • memory/4880-47-0x00000000063F0000-0x000000000643C000-memory.dmp

      Filesize

      304KB

    • memory/4880-46-0x00000000063D0000-0x00000000063EE000-memory.dmp

      Filesize

      120KB

    • memory/4880-25-0x0000000005C50000-0x0000000005FA4000-memory.dmp

      Filesize

      3.3MB

    • memory/4880-22-0x00000000053C0000-0x0000000005426000-memory.dmp

      Filesize

      408KB

    • memory/4880-23-0x0000000005430000-0x0000000005496000-memory.dmp

      Filesize

      408KB

    • memory/4880-21-0x0000000005320000-0x0000000005342000-memory.dmp

      Filesize

      136KB

    • memory/4880-17-0x0000000005520000-0x0000000005B48000-memory.dmp

      Filesize

      6.2MB

    • memory/4880-20-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4880-19-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/4880-18-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB