Overview

overview

10

Static

static

5

Request fo...ce.exe

windows7_x64

10

Request fo...ce.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    144s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 18:41

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General

  • Target

    Request for Quotation RFQ20202505 Short Delivery Preference.exe

  • Size

    1.2MB

  • MD5

    5fad1d54854ef50e426b1cf6eda84149

  • SHA1

    4c6e44341a28741f4f84f3187b77cb400bb12f55

  • SHA256

    2ce80b027fbd13859369ebdcd6b59aa12c1436c56bf37d3592c9c62c79943abc

  • SHA512

    a8b31607ee7f1602d4aa3f503ab2bb6a0c2134c902d10f9e1f10a98f471f97b2f2420b8e1a44bf44220ec8475d02d191587a46cd4dfb9257eadab13cf61b5541

Score
10/10
nanocorekeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

cubanasrhtd.ddns.net:1944

127.0.0.1:1944
Mutex

18644c2b-4928-4d53-9c06-6c653d7d8724

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-06T12:37:24.309095936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1944

  • default_group

    MAY25

  • 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

    18644c2b-4928-4d53-9c06-6c653d7d8724

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    cubanasrhtd.ddns.net

  • primary_dns_server

    8.8.8.8

  • 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.

    keyloggertrojanstealerspywarenanocore
  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Request for Quotation RFQ20202505 Short Delivery Preference.exe
    "C:\Users\Admin\AppData\Local\Temp\Request for Quotation RFQ20202505 Short Delivery Preference.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:872
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1600

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/872-54-0x00000000768D1000-0x00000000768D3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/872-55-0x0000000000610000-0x0000000000676000-memory.dmp
    Filesize

    408KB

    Download
  • memory/872-65-0x0000000000F00000-0x0000000000F66000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1600-56-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1600-58-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1600-63-0x000000000041E792-mapping.dmp
    Download
  • memory/1600-64-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1600-66-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1600-68-0x0000000074800000-0x0000000074DAB000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1600-69-0x0000000000546000-0x0000000000557000-memory.dmp
    Filesize

    68KB

    Download