Overview

overview

10

Static

static

Cea mai bu...re.exe

windows7_x64

10

Cea mai bu...re.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    171s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:34

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General

  • Target

    Cea mai bună scrisoare Serviciu de curierat Notificare de expediere.exe

  • Size

    522KB

  • MD5

    567f0d332d9c0080fb37513454f6a672

  • SHA1

    46168e4736ee37c2184e367c07d0e496b40dd456

  • SHA256

    e6249562be8d8ab7fe78437565bc91c6b2aff27365f3fa33272c0f700c683f62

  • SHA512

    d1f97bb6671264ad79954c1fbf75e29f3065eba2c92029776bf5e6de1e8fdaf9b932715f53b7bdb5b3c41ebf6781e9f7f0dc5638a6d834c4c29b4c38ad7bdb2a

Score
10/10
nanocorekeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

fortyu.duckdns.org:1369

127.0.0.1:1369
Mutex

d15ef5cc-4794-43a4-bdcf-4c7ad27dbd3b

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-05-10T20:37:06.542613736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    1369

  • default_group

    40build

  • 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

    d15ef5cc-4794-43a4-bdcf-4c7ad27dbd3b

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    fortyu.duckdns.org

  • 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.

    keyloggertrojanstealerspywarenanocore
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Cea mai bună scrisoare Serviciu de curierat Notificare de expediere.exe
    "C:\Users\Admin\AppData\Local\Temp\Cea mai bună scrisoare Serviciu de curierat Notificare de expediere.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4132
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XsAREwtQhUibQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC44A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1372
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:4524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC44A.tmp
    Filesize

    1KB

    MD5

    03e6659c3812ef816cc474aff670aee0

    SHA1

    3935b18a985aa5e65f82a43d55efdf16569c11c3

    SHA256

    78f4303f06c6a79b7961cdfdf7222f06ccc363787c0ab58520f02da9cf5e5ad9

    SHA512

    67fedc90c76d211d68b187f1527e981b7682fabacb0809bd8a8015ff495dd226572438863e5a67a04b2266ff2769eb01860d27fd02ddfe2f27762bd31562d17f

    Download Submit
  • memory/1372-135-0x0000000000000000-mapping.dmp
    Download
  • memory/4132-130-0x0000000000B10000-0x0000000000B98000-memory.dmp
    Filesize

    544KB

    Download
  • memory/4132-131-0x0000000005BD0000-0x0000000006174000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/4132-132-0x0000000005570000-0x0000000005602000-memory.dmp
    Filesize

    584KB

    Download
  • memory/4132-133-0x0000000005550000-0x000000000555A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/4132-134-0x0000000008D60000-0x0000000008DFC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/4524-137-0x0000000000000000-mapping.dmp
    Download
  • memory/4524-138-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download