Overview

overview

10

Static

static

BFSV-1F(N)...SI.exe

windows7_x64

10

BFSV-1F(N)...SI.exe

windows10_x64

10

Sharing

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General

  • Target

    BFSV-1F(N)_1B-8B_ANSI.exe

  • Size

    338KB

  • Sample

    210108-fm8tqr8p82

  • MD5

    36f13aad903e851544fe137feca3435b

  • SHA1

    776d3d7e39a8b3e72e2e9b5c36a615e3157d05ad

  • SHA256

    41617ac4431c229ba27bf94617b465309e7f502ae5088cd12ee571a0428ea120

  • SHA512

    77a68e34a1bbf2360f8473368a0e3fd9c54567477a29561980851b82bd8ac1655919a109d6d4456a67bd633ef436fcf4697fc77d17e03e701d36ee7b82f296e6

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

45.138.49.96:9999

127.0.0.1:9999
Mutex

c9506c35-7fc9-4302-a06c-3e362d7043e7

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-10-09T09:41:16.640477036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    9999

  • 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

    c9506c35-7fc9-4302-a06c-3e362d7043e7

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    45.138.49.96

  • 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

      BFSV-1F(N)_1B-8B_ANSI.exe

    • Size

      338KB

    • MD5

      36f13aad903e851544fe137feca3435b

    • SHA1

      776d3d7e39a8b3e72e2e9b5c36a615e3157d05ad

    • SHA256

      41617ac4431c229ba27bf94617b465309e7f502ae5088cd12ee571a0428ea120

    • SHA512

      77a68e34a1bbf2360f8473368a0e3fd9c54567477a29561980851b82bd8ac1655919a109d6d4456a67bd633ef436fcf4697fc77d17e03e701d36ee7b82f296e6

    Score
    10/10
    nanocoreevasionkeyloggerspywarestealertrojan

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Uses the VBS compiler for execution

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1
T1064

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks