Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2024 23:53

General

  • Target

    caf2e6460e16dcf075f3ea8e0680b6a365fb3c211ac405d84de4a7ef71737648N.exe

  • Size

    891KB

  • MD5

    742f9acb0afd3f441ddb2a7c05b83930

  • SHA1

    3bd1d38c8f97af03e74e741d01b8712816c56ed6

  • SHA256

    caf2e6460e16dcf075f3ea8e0680b6a365fb3c211ac405d84de4a7ef71737648

  • SHA512

    7c8214243b96e21f26125a5d818b7c9f096b2cfa615faff03b2c8049b623d18f42be07cb766b330bd382bf5465761c444f69a528724693b7365c9ee11744d433

  • SSDEEP

    12288:D3vWN7/wtNb5lO/SZ+BLOwI0YBI6SEC3uTJHdK+5LJ2AVZn3LCC4BUi/CiRKBdRU:jvWbWNlISkEP1LqAH9k+50X

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

jamesilovecorn.myftp.biz:80

Mutex

db458c24-3972-48e0-85a6-e30efaedfd31

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2015-10-10T21:18:36.993322336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    80

  • default_group

    Default

  • 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

    db458c24-3972-48e0-85a6-e30efaedfd31

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    jamesilovecorn.myftp.biz

  • 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 whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\caf2e6460e16dcf075f3ea8e0680b6a365fb3c211ac405d84de4a7ef71737648N.exe
    "C:\Users\Admin\AppData\Local\Temp\caf2e6460e16dcf075f3ea8e0680b6a365fb3c211ac405d84de4a7ef71737648N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1292
    • C:\Users\Admin\AppData\Local\Temp\caf2e6460e16dcf075f3ea8e0680b6a365fb3c211ac405d84de4a7ef71737648N.exe
      "C:\Users\Admin\AppData\Local\Temp\caf2e6460e16dcf075f3ea8e0680b6a365fb3c211ac405d84de4a7ef71737648N.exe"
      2⤵
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1292-0-0x0000000074201000-0x0000000074202000-memory.dmp

    Filesize

    4KB

  • memory/1292-1-0x0000000074200000-0x00000000747AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1292-2-0x0000000074200000-0x00000000747AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1292-3-0x0000000074200000-0x00000000747AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1292-22-0x0000000074200000-0x00000000747AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1732-10-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1732-16-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1732-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1732-18-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1732-19-0x0000000074200000-0x00000000747AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1732-8-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1732-21-0x0000000074200000-0x00000000747AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1732-20-0x0000000074200000-0x00000000747AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1732-6-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1732-4-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1732-14-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1732-24-0x0000000074200000-0x00000000747AB000-memory.dmp

    Filesize

    5.7MB