Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 12:59

General

  • Target

    6ed9c9232bb75eeaa7c25bd056029200_NeikiAnalytics.exe

  • Size

    280KB

  • MD5

    6ed9c9232bb75eeaa7c25bd056029200

  • SHA1

    2c05eab97dadece4b1f66d9a0aaf43d80f6dd22a

  • SHA256

    b5fa7dfeb71455b8ef6082b6ab84375b495670ebc6593ee0ad30f3a5153b628e

  • SHA512

    a27c74002494282bd27ec8a1e90a5d2d0c682094bbb089aed4e09c91119e8401c3189a1c051d0963f7495919c882627ca4043377c5d6b2e68e304cb66665f81d

  • SSDEEP

    6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfW:boSeGUA5YZazpXUmZhZ6S7

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2020-04-24T17:41:53.492468936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    45400

  • 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

    ae82ab7f-db07-49ee-9d2b-76075d76f37f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    sysupdate24.ddns.net

  • primary_dns_server

  • 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.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ed9c9232bb75eeaa7c25bd056029200_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\6ed9c9232bb75eeaa7c25bd056029200_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
      "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2864
      • C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
        "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
        3⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:2432

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

Discovery

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    Filesize

    280KB

    MD5

    41c8bea25de83cd9edff1038003f3cd3

    SHA1

    da97b8e3a650b5bf0fc97beb1db7a2170991b3b6

    SHA256

    31d04e221086bfa771136423cb501665c8ea9633a2eb1109155ef7e5d739815b

    SHA512

    4f8582c8ed4db1882f81f59b1b6a1f10be58ef75140a91de11d3e7b61d2b2aefc675a37dd4595cbcfa4a8f21d277d7db844155e90482a1795a53cf0b03b0d267

  • memory/2172-12-0x0000000074E90000-0x000000007543B000-memory.dmp
    Filesize

    5.7MB

  • memory/2172-1-0x0000000074E90000-0x000000007543B000-memory.dmp
    Filesize

    5.7MB

  • memory/2172-2-0x0000000074E90000-0x000000007543B000-memory.dmp
    Filesize

    5.7MB

  • memory/2172-3-0x0000000074E90000-0x000000007543B000-memory.dmp
    Filesize

    5.7MB

  • memory/2172-0-0x0000000074E91000-0x0000000074E92000-memory.dmp
    Filesize

    4KB

  • memory/2432-31-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2432-17-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2432-22-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2432-20-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2432-30-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2432-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2432-24-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2432-19-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2864-15-0x0000000074E90000-0x000000007543B000-memory.dmp
    Filesize

    5.7MB

  • memory/2864-14-0x0000000074E90000-0x000000007543B000-memory.dmp
    Filesize

    5.7MB

  • memory/2864-13-0x0000000074E90000-0x000000007543B000-memory.dmp
    Filesize

    5.7MB

  • memory/2864-33-0x0000000074E90000-0x000000007543B000-memory.dmp
    Filesize

    5.7MB