Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-07-2024 07:31

General

  • Target

    b3ecfad7812c038effe03852fe7794bd52d291a97d858245c48ba8fd8408e131.exe

  • Size

    699KB

  • MD5

    56fae07d0d9ee560ef2fb4c536868b11

  • SHA1

    1ebcf170ce900f63a7238ad710cedbe1cfc712be

  • SHA256

    b3ecfad7812c038effe03852fe7794bd52d291a97d858245c48ba8fd8408e131

  • SHA512

    d32341d1e6a242a1f093c6ca7efcd73e512e90343dbdafa0efe66881f5d40db1a93dcf6fb64ce3f2bd39ea54457d98421cb54805c6f378fedabc1cefc16ce541

  • SSDEEP

    12288:FnMuCLXNc0xC0eQJNPPFW1HJmLCstwCD5Nyk9wYKHsXUB0vioVUp24Ebp:FMfLXNcECriN1W1HJ4UCD7KJB06oVUp

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newsddawork.3utilities.com:1620

maxlogs.webhop.me:1620

Mutex

1fa46b72-10f9-4da3-bc15-84dde165706d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    maxlogs.webhop.me

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-02-17T03:41:10.727034736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1620

  • default_group

    NewBin

  • 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

    1fa46b72-10f9-4da3-bc15-84dde165706d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newsddawork.3utilities.com

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3ecfad7812c038effe03852fe7794bd52d291a97d858245c48ba8fd8408e131.exe
    "C:\Users\Admin\AppData\Local\Temp\b3ecfad7812c038effe03852fe7794bd52d291a97d858245c48ba8fd8408e131.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:3112
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Adds Run key to start application
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:4036

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3100-10-0x00000000095C0000-0x000000000965C000-memory.dmp
      Filesize

      624KB

    • memory/3100-13-0x0000000074DC0000-0x0000000075571000-memory.dmp
      Filesize

      7.7MB

    • memory/3100-2-0x00000000058F0000-0x0000000005E96000-memory.dmp
      Filesize

      5.6MB

    • memory/3100-3-0x0000000005340000-0x00000000053D2000-memory.dmp
      Filesize

      584KB

    • memory/3100-4-0x0000000005310000-0x000000000531A000-memory.dmp
      Filesize

      40KB

    • memory/3100-5-0x0000000074DC0000-0x0000000075571000-memory.dmp
      Filesize

      7.7MB

    • memory/3100-6-0x00000000058C0000-0x00000000058D2000-memory.dmp
      Filesize

      72KB

    • memory/3100-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp
      Filesize

      4KB

    • memory/3100-8-0x0000000006DD0000-0x0000000006DDE000-memory.dmp
      Filesize

      56KB

    • memory/3100-9-0x0000000006DF0000-0x0000000006E6A000-memory.dmp
      Filesize

      488KB

    • memory/3100-7-0x0000000006DC0000-0x0000000006DC8000-memory.dmp
      Filesize

      32KB

    • memory/3100-1-0x00000000007A0000-0x0000000000856000-memory.dmp
      Filesize

      728KB

    • memory/4036-14-0x0000000074DC0000-0x0000000075571000-memory.dmp
      Filesize

      7.7MB

    • memory/4036-11-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/4036-15-0x0000000074DC0000-0x0000000075571000-memory.dmp
      Filesize

      7.7MB

    • memory/4036-18-0x0000000005500000-0x000000000550A000-memory.dmp
      Filesize

      40KB

    • memory/4036-19-0x0000000005670000-0x000000000568E000-memory.dmp
      Filesize

      120KB

    • memory/4036-20-0x0000000005A30000-0x0000000005A3A000-memory.dmp
      Filesize

      40KB

    • memory/4036-21-0x0000000074DC0000-0x0000000075571000-memory.dmp
      Filesize

      7.7MB

    • memory/4036-22-0x0000000074DC0000-0x0000000075571000-memory.dmp
      Filesize

      7.7MB