Overview

overview

10

Static

static

halkbank,pdf.exe

windows7_x64

10

halkbank,pdf.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    989f797cd2fdf4a061dffaab1f1e15194221a3fe0a1d9e1372d32dcd331b9f27

  • Size

    324KB

  • Sample

    220521-n33deshfhk

  • MD5

    49e1854598850d51da096aa44d4f586b

  • SHA1

    c8980839874288e4d92be2c6ff275bf2aea0c78b

  • SHA256

    989f797cd2fdf4a061dffaab1f1e15194221a3fe0a1d9e1372d32dcd331b9f27

  • SHA512

    2185735768a389ffa663a50457ea136567ee9f823e091c780065da2b97b5e1fc8dfb2811bd30103049b5044af87382cb4b6d8ee5603b96c4db818b14bdaad943

Score
10/10
nanocoreevasionkeyloggerpersistencerezer0spywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

jfncghc.ddns.net:4040

127.0.0.1:4040
Mutex

e2279684-e454-4079-806c-610ddaafcce7

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-28T14:53:11.033143636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4040

  • 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

    e2279684-e454-4079-806c-610ddaafcce7

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    jfncghc.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

Targets

    • Target

      halkbank,pdf.exe

    • Size

      505KB

    • MD5

      c2ae801ef06c2ccb81a80b570d37083d

    • SHA1

      802f68b12a3c4b574a7f75f24d43e41e06e105c0

    • SHA256

      a9352a90a15c864ae05d1d1138aff00094883dc44afffc471e837e46fe3eb24e

    • SHA512

      700ef3edbdaa64de7887cb9edfbf40006a704ab278a33aa02b989e619cf6337568144bf3b0c2f09e1ce1fb3dd80ed406625510f6ea02dd3c1df7127ec8297035

    Score
    10/10
    nanocoreevasionkeyloggerpersistencerezer0spywarestealertrojan

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

      rezer0

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks