Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 02:29

General

  • Target

    dbf4194e27254f56ff4c456a2a2ca07c7a2a4432553c013e50724a0f31017727.exe

  • Size

    1.4MB

  • MD5

    4cb7425442688fe6a78d203dbb8b2ade

  • SHA1

    07e898706bba2fad06868827397cba204bc4c983

  • SHA256

    dbf4194e27254f56ff4c456a2a2ca07c7a2a4432553c013e50724a0f31017727

  • SHA512

    ef39c104e2de10eb3c1466669af99f6fb0aad03f23ad4a253a7aaf2c885046f9ceef0bb3a2458739f13572eded6b865c5581a078f5b361bb09f6f8535f525711

  • SSDEEP

    24576:rAOcZEhNWxlG7m4/9eBcA4CCEti0POqh/0rEOTq6ai0bagi7xa53:tyxlk9eBVlCGVPOwOTq6d4a5wN

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newme122.3utilities.com:8822

newme1122.3utilities.com:8822

Mutex

dcf3fee6-c103-45ee-a2f0-f8afaa78d1fe

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    newme1122.3utilities.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-31T13:00:17.372768836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8822

  • default_group

    A New TIme Has Come

  • 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

    dcf3fee6-c103-45ee-a2f0-f8afaa78d1fe

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newme122.3utilities.com

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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.

  • Nanocore family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dbf4194e27254f56ff4c456a2a2ca07c7a2a4432553c013e50724a0f31017727.exe
    "C:\Users\Admin\AppData\Local\Temp\dbf4194e27254f56ff4c456a2a2ca07c7a2a4432553c013e50724a0f31017727.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4544
    • C:\Users\Admin\04687118\vfqftjs.pif
      "C:\Users\Admin\04687118\vfqftjs.pif" benowsto.dso
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4060
      • C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
        3⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:3720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\04687118\htdvvtoec.cpl

    Filesize

    57KB

    MD5

    7ed530856ca49cc6e529fde187cafa69

    SHA1

    45decbe54611c757d6ff1897cc5d8736663a235e

    SHA256

    b7dcb66c6681eca56a487148033d518dcf6bbc9f8daeb36065a62300bbf6bf18

    SHA512

    f653a02643cd32bd2c330c0a3e775ef518364229979a730e549a2bae4c2dd203b24e32b28572a8bfad81141cb0147e22fa177102a9428561b330554f51c5347a

  • C:\Users\Admin\04687118\vfqftjs.pif

    Filesize

    758KB

    MD5

    8935e163bb79e8d4b40b73521a06a0d1

    SHA1

    dfd9f6cd5dabf0c2fae0186b5471f025f542c708

    SHA256

    3a2b62144b3b6bc612770de7777233c96ea35e50e9fd7b0b482862825d728fdb

    SHA512

    76620b23fe5f2bcc783bcbd7fb27a68a171751a96b459f757045f80e027d452724c73292a008acad58eb58b6eb99dddf82130a83e761e35b7e5c4d89b058d175

  • C:\Users\Admin\04687118\xekts.rve

    Filesize

    1.0MB

    MD5

    9a23a74450492ba99ed6e21118519974

    SHA1

    097ebe56f9b80153cc85a9967a759a590c3e2fcd

    SHA256

    2afd228cda8311585ceada01a515dc32f21fc87e31b2c3eaec6fadb489779cbc

    SHA512

    e1885d3657275d8e70f0f61ac0a6af6c9202e233def34e820fb9054ab07f0b73c83edc667787263e3a29933fefa24d027cd61b14d3c156ece15692b9d8561511

  • C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe

    Filesize

    44KB

    MD5

    9d352bc46709f0cb5ec974633a0c3c94

    SHA1

    1969771b2f022f9a86d77ac4d4d239becdf08d07

    SHA256

    2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

    SHA512

    13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

  • memory/3720-74-0x0000000005D80000-0x0000000005D92000-memory.dmp

    Filesize

    72KB

  • memory/3720-79-0x00000000068C0000-0x00000000068D4000-memory.dmp

    Filesize

    80KB

  • memory/3720-67-0x0000000000D00000-0x0000000000D8C000-memory.dmp

    Filesize

    560KB

  • memory/3720-68-0x0000000005F20000-0x00000000064C4000-memory.dmp

    Filesize

    5.6MB

  • memory/3720-69-0x0000000005A10000-0x0000000005AA2000-memory.dmp

    Filesize

    584KB

  • memory/3720-70-0x0000000005B50000-0x0000000005BEC000-memory.dmp

    Filesize

    624KB

  • memory/3720-71-0x0000000005AD0000-0x0000000005ADA000-memory.dmp

    Filesize

    40KB

  • memory/3720-73-0x0000000005D60000-0x0000000005D6A000-memory.dmp

    Filesize

    40KB

  • memory/3720-63-0x0000000000D00000-0x0000000001316000-memory.dmp

    Filesize

    6.1MB

  • memory/3720-75-0x0000000006850000-0x000000000686A000-memory.dmp

    Filesize

    104KB

  • memory/3720-76-0x00000000068A0000-0x00000000068AE000-memory.dmp

    Filesize

    56KB

  • memory/3720-66-0x000000007311E000-0x000000007311F000-memory.dmp

    Filesize

    4KB

  • memory/3720-78-0x00000000068B0000-0x00000000068BC000-memory.dmp

    Filesize

    48KB

  • memory/3720-77-0x0000000006890000-0x000000000689E000-memory.dmp

    Filesize

    56KB

  • memory/3720-80-0x00000000068D0000-0x00000000068E0000-memory.dmp

    Filesize

    64KB

  • memory/3720-81-0x00000000068F0000-0x0000000006904000-memory.dmp

    Filesize

    80KB

  • memory/3720-83-0x0000000006910000-0x000000000692E000-memory.dmp

    Filesize

    120KB

  • memory/3720-82-0x0000000006900000-0x000000000690E000-memory.dmp

    Filesize

    56KB

  • memory/3720-84-0x0000000006940000-0x000000000694A000-memory.dmp

    Filesize

    40KB

  • memory/3720-85-0x0000000006A90000-0x0000000006ABE000-memory.dmp

    Filesize

    184KB

  • memory/3720-86-0x0000000006AD0000-0x0000000006AE4000-memory.dmp

    Filesize

    80KB

  • memory/3720-87-0x000000007311E000-0x000000007311F000-memory.dmp

    Filesize

    4KB