Analysis

  • max time kernel
    115s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-10-2024 05:47

General

  • Target

    7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe

  • Size

    413KB

  • MD5

    17cf28d1105ab3b8c8610cbcf9a5bc80

  • SHA1

    2e2d350c2682cbd72bb815c9da9161226c86dc55

  • SHA256

    7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340

  • SHA512

    43444bb055baa4206faff6013ebbceec722531430e2907919f295fed140aec0beced6eb686d6168a752c18a664c3cebf3c8f5fbc65cf0db0cb3bbd0669708968

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUM:ITNYrnE3bm/CiejewY5vP

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    178.32.224.116

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2018-07-28T12:59:38.488799236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    46218

  • default_group

    tourex

  • 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

    4af74541-e3f1-469c-8af7-efe4071b81cf

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    [email protected]

  • 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 1 IoCs
  • Loads dropped DLL 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 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 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe
    "C:\Users\Admin\AppData\Local\Temp\7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2752
    • C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
      "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2420
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
        3⤵
        • Checks whether UAC is enabled
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:2804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

    Filesize

    413KB

    MD5

    84193fc7e60112c8a1f4bd2674bebf1c

    SHA1

    423738b53a743a1b65377da5d43bf1a37d5432f2

    SHA256

    ee367485516cbb7a51097e43bffa2a2e13f1e7269fde143c202ca91481614e48

    SHA512

    559ed15320035454aa7cc23459ab2e565016bf59734b96c7da6163bd3341d11b9c91d60204d8e792749ed24cd6c3f323fcbea2f3a8858b88c56d31d27015200b

  • memory/2420-33-0x0000000073F20000-0x000000007460E000-memory.dmp

    Filesize

    6.9MB

  • memory/2420-15-0x0000000073F20000-0x000000007460E000-memory.dmp

    Filesize

    6.9MB

  • memory/2420-14-0x0000000073F20000-0x000000007460E000-memory.dmp

    Filesize

    6.9MB

  • memory/2420-13-0x00000000009A0000-0x0000000000A0E000-memory.dmp

    Filesize

    440KB

  • memory/2420-34-0x0000000073F20000-0x000000007460E000-memory.dmp

    Filesize

    6.9MB

  • memory/2752-1-0x0000000000B90000-0x0000000000BFE000-memory.dmp

    Filesize

    440KB

  • memory/2752-2-0x0000000073F20000-0x000000007460E000-memory.dmp

    Filesize

    6.9MB

  • memory/2752-3-0x0000000002120000-0x000000000215C000-memory.dmp

    Filesize

    240KB

  • memory/2752-12-0x0000000073F20000-0x000000007460E000-memory.dmp

    Filesize

    6.9MB

  • memory/2752-0-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

    Filesize

    4KB

  • memory/2804-17-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2804-27-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2804-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2804-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2804-20-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2804-18-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2804-30-0x00000000007D0000-0x00000000007DA000-memory.dmp

    Filesize

    40KB

  • memory/2804-31-0x00000000008C0000-0x00000000008DE000-memory.dmp

    Filesize

    120KB

  • memory/2804-32-0x0000000000820000-0x000000000082A000-memory.dmp

    Filesize

    40KB

  • memory/2804-28-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2804-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB