Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17-05-2024 07:52

General

  • Target

    d4749b36a1abe39558e39ffe15c0a3f0_NeikiAnalytics.exe

  • Size

    280KB

  • MD5

    d4749b36a1abe39558e39ffe15c0a3f0

  • SHA1

    b80979449900942a18e63af551887c1920e2e0a6

  • SHA256

    e002d16bd678b96d6393f58875621aa57b9bea730c28a7b23aa5684b5a842aea

  • SHA512

    23a817e1933bcabf74966b33b4d7a4d2e150a93bc3d8700640f47592b811b79e832d12fb4032788ebfab58eec4ec72d2a7cfb89f29b900ade293c7b4c5d83d4b

  • SSDEEP

    6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfk:boSeGUA5YZazpXUmZhZ6Sd

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 3 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\d4749b36a1abe39558e39ffe15c0a3f0_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\d4749b36a1abe39558e39ffe15c0a3f0_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2232
    • 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:2596
      • 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:2512

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

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

    280KB

    MD5

    ab07709832a887253aa37ab5cd562d5c

    SHA1

    4a1cad7543cd17933469f4c0c4162c027bda72d4

    SHA256

    f12a77e667de2a5262fc192c97d5db8ee6da2095cba4038cd5bfeff13ffd2b14

    SHA512

    2bf82df5b11f8e07830386005d91703da9e078e12bf416f6e828a425d24a5b6af2829ff3aaade4401e447ef7b32829ff544393d6e845297063a9fa1a2d79df0f

  • memory/2232-12-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/2232-1-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/2232-2-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/2232-3-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/2232-0-0x0000000074711000-0x0000000074712000-memory.dmp
    Filesize

    4KB

  • memory/2512-16-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2512-34-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2512-32-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2512-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2512-26-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2512-23-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2512-20-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2512-18-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2596-14-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/2596-13-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/2596-36-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/2596-37-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB