Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05-05-2024 02:05

General

  • Target

    Inquiry List.pdf.exe

  • Size

    1.7MB

  • MD5

    89a2e99f3a510475dfbb36e7492967e9

  • SHA1

    d51a45a4041951b84df7bb9bc08bd9dacb469015

  • SHA256

    17f9b526e5aa96416862611bfa6ab84396209a3df8bb5b723240e8a57dc6d0e9

  • SHA512

    171fe1bdfce0515372fffafde37e3906a5fb7325dfe24861c71d0f1c8cc6556b6e81194bfe175a7595ca73ac169b9038460500706c53982ff87a7b047041c40d

  • SSDEEP

    24576:7ENXVpmPIXFp2Q3tnL0qb1szI4xIIrBB+XVpmPIXFp0iz:2VgPIXFU69uzI4xIY2VgPIXFh

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

baby.ausluggage.com:5656

mama.rnatrixgn.com:5656

Mutex

06c90934-ef35-4223-aa27-fcdec34238e3

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    mama.rnatrixgn.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-12-23T09:42:15.812707836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5656

  • default_group

    2020

  • 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

    06c90934-ef35-4223-aa27-fcdec34238e3

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    baby.ausluggage.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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inquiry List.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry List.pdf.exe"
    1⤵
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2328-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

    Filesize

    4KB

  • memory/2328-1-0x0000000001110000-0x00000000012C4000-memory.dmp

    Filesize

    1.7MB

  • memory/2328-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

    Filesize

    6.9MB

  • memory/2328-3-0x0000000000CA0000-0x0000000000D10000-memory.dmp

    Filesize

    448KB

  • memory/2328-12-0x00000000743F0000-0x0000000074ADE000-memory.dmp

    Filesize

    6.9MB

  • memory/2328-7-0x00000000743F0000-0x0000000074ADE000-memory.dmp

    Filesize

    6.9MB

  • memory/2984-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2984-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2984-9-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2984-13-0x00000000744F2000-0x00000000744F4000-memory.dmp

    Filesize

    8KB

  • memory/2984-15-0x00000000744F2000-0x00000000744F4000-memory.dmp

    Filesize

    8KB