Analysis

  • max time kernel
    140s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-10-2024 18:29

General

  • Target

    0dd48f6fcbd2eb472e12feea3ed7a10a7ccb5b0c6e4904605d16cd1a7f4c45f3.exe

  • Size

    414KB

  • MD5

    735fe2ed9039b220b9b48738577d2569

  • SHA1

    14ae029b9652cb627154def16b5d15b5fb1164f3

  • SHA256

    0dd48f6fcbd2eb472e12feea3ed7a10a7ccb5b0c6e4904605d16cd1a7f4c45f3

  • SHA512

    21553bee64f57a68160e01ddf94304582be05daeab7fbc6a58a7f48caae98827e1454fff6e581039bb44b65ec59be30d8958256ad6373ab22a003fa9ddc6ef3e

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUM:ITNYrnE3bm/CiejewY5vz

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\0dd48f6fcbd2eb472e12feea3ed7a10a7ccb5b0c6e4904605d16cd1a7f4c45f3.exe
    "C:\Users\Admin\AppData\Local\Temp\0dd48f6fcbd2eb472e12feea3ed7a10a7ccb5b0c6e4904605d16cd1a7f4c45f3.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1096
    • 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:2052
      • 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:2712

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    414KB

    MD5

    1c53d62f2e63b754dbd99aa16f414dc2

    SHA1

    1668ca90e564eaa3dd5e8f925c57681d4f1493ac

    SHA256

    ca3f9dd8d837c5ee0d10ca0e20c4687d2460f34af64bc080d7ad62dea1efbfb9

    SHA512

    9fa0019ab9be23088decb81309960278d55ea6d643097d49903839f7e59d25d44f8a9155b891211a507ebcef29b44ae42c706d808e3244966a9a2bdf472ff852

  • memory/1096-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1096-1-0x0000000000350000-0x00000000003BE000-memory.dmp

    Filesize

    440KB

  • memory/1096-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

    Filesize

    4KB

  • memory/1096-12-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1096-3-0x0000000001DE0000-0x0000000001E1C000-memory.dmp

    Filesize

    240KB

  • memory/2052-33-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2052-13-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2052-14-0x0000000000D50000-0x0000000000DBE000-memory.dmp

    Filesize

    440KB

  • memory/2052-15-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2052-34-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2712-20-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2712-28-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2712-27-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2712-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2712-18-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2712-17-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2712-30-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/2712-31-0x00000000004D0000-0x00000000004EE000-memory.dmp

    Filesize

    120KB

  • memory/2712-32-0x00000000004F0000-0x00000000004FA000-memory.dmp

    Filesize

    40KB

  • memory/2712-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2712-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB