Analysis

  • max time kernel
    133s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-11-2024 16:40

General

  • Target

    CHQUE COPY.exe

  • Size

    1.3MB

  • MD5

    fc39b66393779b59ac8a77c7b4478056

  • SHA1

    748f31a543966d35c43704e278b4453c88f6de3c

  • SHA256

    018a9e5cca5ccf712a501f6c11cacea74f7394612c291fb1cdc258dd7111b0ce

  • SHA512

    ad7996084016cd02821707d29fca9a9730b45215501b480f23121461e128e9257fe866aa22921aeb5c2bafe4233761c20e8ca048fab1fa0f74b51ee3d4d5e58a

  • SSDEEP

    24576:mRmJkcoQricOIQxiZY1iaI9tlvju5yQhZqL6xJoOEh88W0kGwMw:jJZoQrbTFZY1iaI/NLp6xJoRBhw/

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.222.58.53:9805

Mutex

4a272282-28bb-4f35-9d1f-fa3fe895120e

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.222.58.53

  • backup_dns_server

    185.222.58.53

  • buffer_size

    65535

  • build_time

    2024-08-16T02:14:15.372206536Z

  • 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

    9805

  • 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

    4a272282-28bb-4f35-9d1f-fa3fe895120e

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    185.222.58.53

  • primary_dns_server

    185.222.58.53

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CHQUE COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\CHQUE COPY.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\CHQUE COPY.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2256
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DPI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD430.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2276
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DPI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD4BE.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD430.tmp

    Filesize

    1KB

    MD5

    40b11ef601fb28f9b2e69d36857bf2ec

    SHA1

    b6454020ad2ceed193f4792b77001d0bd741b370

    SHA256

    c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

    SHA512

    e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

  • C:\Users\Admin\AppData\Local\Temp\tmpD4BE.tmp

    Filesize

    1KB

    MD5

    5fea24e883e06e4df6d240dc72abf2c5

    SHA1

    d778bf0f436141e02df4b421e8188abdcc9a84a4

    SHA256

    e858982f4ab3c74f7a8903eea18c0f73501a77273ae38b54d5c9dec997e79a66

    SHA512

    15afc2ffbbee14d28a5ff8dc8285d01c942147aada36fb33e31045a4e998769b51738bebe199bcad3462f918b535845a893aa2f80c84b9c795cd1fee4a327924

  • memory/2256-10-0x0000000074AD0000-0x000000007507B000-memory.dmp

    Filesize

    5.7MB

  • memory/2256-5-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2256-8-0x0000000074AD1000-0x0000000074AD2000-memory.dmp

    Filesize

    4KB

  • memory/2256-9-0x0000000074AD0000-0x000000007507B000-memory.dmp

    Filesize

    5.7MB

  • memory/2256-7-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2256-3-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2256-18-0x0000000074AD0000-0x000000007507B000-memory.dmp

    Filesize

    5.7MB

  • memory/2256-19-0x0000000074AD0000-0x000000007507B000-memory.dmp

    Filesize

    5.7MB

  • memory/2256-20-0x0000000074AD0000-0x000000007507B000-memory.dmp

    Filesize

    5.7MB

  • memory/2256-21-0x0000000074AD0000-0x000000007507B000-memory.dmp

    Filesize

    5.7MB

  • memory/2372-2-0x0000000003FC0000-0x00000000043C0000-memory.dmp

    Filesize

    4.0MB