Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:50

General

  • Target

    b6c00c57c3422a34320e9b792b38ee19a503360dc0031b66b48592cf96a9a376.exe

  • Size

    451KB

  • MD5

    3e023639d74a9177605cfd6693294574

  • SHA1

    c2581e1e45926ba4271b51c293197deeaa5a0a45

  • SHA256

    b6c00c57c3422a34320e9b792b38ee19a503360dc0031b66b48592cf96a9a376

  • SHA512

    27a100c9135fb817636302067c43bc64e0b19e458ca7d5ccf847d2fb90c4c7e610bafc4bc4216f1158ecd1bf0b2728d216f3346a7e930e11cfd5a6e8c3d4f5af

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ganif.ddns.net:9017

Mutex

eaacbb4e-3e02-49b6-9c26-484c86fcb9d5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    ganif.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-11-18T09:31:56.362203336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    9017

  • default_group

    Lifted

  • 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

    eaacbb4e-3e02-49b6-9c26-484c86fcb9d5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    ganif.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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6c00c57c3422a34320e9b792b38ee19a503360dc0031b66b48592cf96a9a376.exe
    "C:\Users\Admin\AppData\Local\Temp\b6c00c57c3422a34320e9b792b38ee19a503360dc0031b66b48592cf96a9a376.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Local\Temp\b6c00c57c3422a34320e9b792b38ee19a503360dc0031b66b48592cf96a9a376.exe
      "C:\Users\Admin\AppData\Local\Temp\b6c00c57c3422a34320e9b792b38ee19a503360dc0031b66b48592cf96a9a376.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1632

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1632-62-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1632-65-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1632-56-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1632-57-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1632-59-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1632-60-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1632-71-0x00000000005B0000-0x00000000005BA000-memory.dmp
    Filesize

    40KB

  • memory/1632-70-0x0000000000550000-0x000000000056E000-memory.dmp
    Filesize

    120KB

  • memory/1632-68-0x0000000075BA1000-0x0000000075BA3000-memory.dmp
    Filesize

    8KB

  • memory/1632-67-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1632-63-0x000000000041E792-mapping.dmp
  • memory/1632-69-0x0000000000440000-0x000000000044A000-memory.dmp
    Filesize

    40KB

  • memory/1668-54-0x00000000011F0000-0x0000000001266000-memory.dmp
    Filesize

    472KB

  • memory/1668-55-0x00000000004B0000-0x00000000004B8000-memory.dmp
    Filesize

    32KB