Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2025 14:12

General

  • Target

    0c1c0a2aab61208228f79c88d9d119953f0095825ccbdf37a6e4e1c041a342a2N.exe

  • Size

    1.3MB

  • MD5

    b0de8f50d0dbcbdba16c871edd0383d0

  • SHA1

    3e341c3c4ad059aa264786c984a11b3e4dd2a55c

  • SHA256

    0c1c0a2aab61208228f79c88d9d119953f0095825ccbdf37a6e4e1c041a342a2

  • SHA512

    261fd14f92b115a27d305a6e10cf1ef244dc4a1459f8afe977367bb2e5ae28f6a8b4d209570eac3c88d5b2a4374afb4e7910bde14286d84f8b1bd1bac0061f03

  • SSDEEP

    24576:xdtP2cbksTpugRNJI50FMJFMFggMFgMJFggMJFMFggMFMJFMFMFMFgggMFggMFgL:Cgqe

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

91.236.116.142:5888

Mutex

d995ed82-bf13-4043-b564-f5f89f8c5209

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    91.236.116.142

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2017-01-07T03:01:54.729778636Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    5888

  • default_group

    Spy

  • 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

    d995ed82-bf13-4043-b564-f5f89f8c5209

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    91.236.116.142

  • primary_dns_server

    8.8.8.8

  • 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.

  • Nanocore family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 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 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c1c0a2aab61208228f79c88d9d119953f0095825ccbdf37a6e4e1c041a342a2N.exe
    "C:\Users\Admin\AppData\Local\Temp\0c1c0a2aab61208228f79c88d9d119953f0095825ccbdf37a6e4e1c041a342a2N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2056
    • C:\Users\Admin\AppData\Roaming\app.exe
      "C:\Users\Admin\AppData\Roaming\app.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3932
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "NTFS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE104.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE104.tmp

    Filesize

    1KB

    MD5

    d81eb43d26d4511c44151cba2eb45983

    SHA1

    135c98e039c6ab35d4e9564f15f9c56dc9dbeb9a

    SHA256

    a72a8f6434d6b0fb904db5adc8cab891d12c53b4ac1435dfd13df51f84a2d4d0

    SHA512

    b5895c19159d23a8fa312967e47d0855ac6f8f314f8931f54469b0c0079a22e9e00a5eaf6729761f74d54e111454d49813e658243e920a9c3434a5576cdda721

  • C:\Users\Admin\AppData\Roaming\app.exe

    Filesize

    1.3MB

    MD5

    4fe4eb227592cf1b254c003ef442b780

    SHA1

    d31016f38fac45e154ba4f2b08ed9b7758c61df3

    SHA256

    0ffb88bbabf18d3961d29e2488882336a1113f1ea8a3c2e39de667e35d559b15

    SHA512

    6254d291ad612c02c8ea6e2fd170399b989589e6b0a430cbc1be70e70dccb1f88fc4271b1c439d177685e830f146b23eb34fa693d533f7a044c09fed24d141c6

  • memory/2056-0-0x0000000074CF2000-0x0000000074CF3000-memory.dmp

    Filesize

    4KB

  • memory/2056-1-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2056-2-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2056-5-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2056-6-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2056-7-0x0000000074CF2000-0x0000000074CF3000-memory.dmp

    Filesize

    4KB

  • memory/2056-8-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/2056-30-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/3932-39-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/3932-36-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3932-38-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/3932-41-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/3932-46-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/4924-33-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/4924-34-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/4924-32-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/4924-40-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB

  • memory/4924-31-0x0000000074CF0000-0x00000000752A1000-memory.dmp

    Filesize

    5.7MB