Overview

overview

10

Static

static

invoice.xlsx

windows7_x64

10

invoice.xlsx

windows10_x64

1

Sharing

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General

  • Target

    invoice.xlsx

  • Size

    14KB

  • Sample

    201203-28ga1f6pcx

  • MD5

    c5ee2bbbe4136e2d035657a3d03b83f2

  • SHA1

    fad4946615fa94a95dc42f89590aa9db2528bbb2

  • SHA256

    8200589354a9dc0521138f3063f544be6a19b44db2d9cb02e19bb5921bdf94ff

  • SHA512

    b8f86fd2393068530187923e23dc28a86b0ec21aaef00a0ee31e07290a4d2ab4c54d7bd86199c8406a938efa70af7c165fb9c8aa871bf098d40a0b13a1b03667

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

delightson.ddns.net:5050

Mutex

d0300b81-3290-4c89-b115-91ad65c3ab7f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-09-14T01:52:29.013868736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    5050

  • default_group

    son

  • 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

    d0300b81-3290-4c89-b115-91ad65c3ab7f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    delightson.ddns.net

  • 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

Targets

    • Target

      invoice.xlsx

    • Size

      14KB

    • MD5

      c5ee2bbbe4136e2d035657a3d03b83f2

    • SHA1

      fad4946615fa94a95dc42f89590aa9db2528bbb2

    • SHA256

      8200589354a9dc0521138f3063f544be6a19b44db2d9cb02e19bb5921bdf94ff

    • SHA512

      b8f86fd2393068530187923e23dc28a86b0ec21aaef00a0ee31e07290a4d2ab4c54d7bd86199c8406a938efa70af7c165fb9c8aa871bf098d40a0b13a1b03667

    Score
    10/10
    nanocoreevasionkeyloggerpersistencespywarestealertrojan

    • Modifies WinLogon for persistence

      persistence

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

      keyloggertrojanstealerspywarenanocore

    • Windows security bypass

      evasiontrojan

    • Blacklisted process makes network request

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1
T1203

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

3
T1089

Credential Access

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks