Overview

overview

10

Static

static

DHL Accoun...51.exe

windows7-x64

10

DHL Accoun...51.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    60s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-10-2022 12:25

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General

  • Target

    DHL Account Overdue Letter - 1301755651.exe

  • Size

    842KB

  • MD5

    664d5c829d9c66ff4922a5d39d03deca

  • SHA1

    2687185bd88b713d91ee11eccad22a44389b7e06

  • SHA256

    2f5f53f6f21e302f248f3684a76fd3622c8942ba1c8c23238d14fd0ea540e256

  • SHA512

    3f52dc198d091cb09ff4e899f5ba53efeaae09f39e7d0e319ddacbb5cd7a71eb918a3583eca6c706d0d68e7f0205fd97f15569ac4e18f325d364302e98d1d87b

  • SSDEEP

    12288:1B7pubXBkdJjNM3oubhaIV7sHPm7DxkVgvsiDymOEIdcN7e:1BCGddsoubRsHPmRkGlD4mNq

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

198.50.231.134:5498

Mutex

9b971056-14d1-4d11-993c-89c2085bbd7c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-07-01T11:22:25.531243736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5498

  • default_group

    miracle

  • 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

    9b971056-14d1-4d11-993c-89c2085bbd7c

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    198.50.231.134

  • 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 whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Account Overdue Letter - 1301755651.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Account Overdue Letter - 1301755651.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:444
    • C:\Users\Admin\AppData\Local\Temp\DHL Account Overdue Letter - 1301755651.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Account Overdue Letter - 1301755651.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3444

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/444-132-0x0000000000950000-0x0000000000A2A000-memory.dmp

    Filesize

    872KB

    Download

  • memory/444-133-0x0000000005880000-0x0000000005E24000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/444-134-0x00000000053D0000-0x0000000005462000-memory.dmp

    Filesize

    584KB

    Download

  • memory/444-135-0x00000000055F0000-0x00000000055FA000-memory.dmp

    Filesize

    40KB

    Download

  • memory/444-136-0x0000000008F60000-0x0000000008FFC000-memory.dmp

    Filesize

    624KB

    Download

  • memory/3444-137-0x0000000000000000-mapping.dmp

    Download

  • memory/3444-138-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/3444-139-0x0000000006950000-0x00000000069B6000-memory.dmp

    Filesize

    408KB

    Download