General

  • Target

    61eea36a4fe7a62d5e6c371d13c835f00ed1f96b9237b52f39be66707b558b48

  • Size

    939KB

  • Sample

    221119-kmx7zsce86

  • MD5

    4325caea282be99b605e26754c406830

  • SHA1

    a0c95de32751cd5a4defb993a5f556f3544cb7e4

  • SHA256

    61eea36a4fe7a62d5e6c371d13c835f00ed1f96b9237b52f39be66707b558b48

  • SHA512

    19ab4631739af22256f00d3320dac7d864c68070c695788aeb419952c16af6a25daf40eaa060f1d0dee7df4f00e16a82e3b372e6adeaed98800b8ec50517a17b

  • SSDEEP

    12288:NjYlUdVCU5S41Yd2Z+pW/qF9vUi/zr4e56K0AbDcZ2yGTNGNPG8OcXDyHVZgPKpv:jVG46PFFNnH4NPucYNaPVWVZXp/

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

aje.ddns.net:9991

Mutex

d86cd23e-85c5-4bd1-aecb-b7be43080c66

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    aje.ddns.net

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2015-03-10T13:36:53.354214636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    9991

  • default_group

    MILLI

  • 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

    d86cd23e-85c5-4bd1-aecb-b7be43080c66

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    aje.ddns.net

  • primary_dns_server

  • 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

      61eea36a4fe7a62d5e6c371d13c835f00ed1f96b9237b52f39be66707b558b48

    • Size

      939KB

    • MD5

      4325caea282be99b605e26754c406830

    • SHA1

      a0c95de32751cd5a4defb993a5f556f3544cb7e4

    • SHA256

      61eea36a4fe7a62d5e6c371d13c835f00ed1f96b9237b52f39be66707b558b48

    • SHA512

      19ab4631739af22256f00d3320dac7d864c68070c695788aeb419952c16af6a25daf40eaa060f1d0dee7df4f00e16a82e3b372e6adeaed98800b8ec50517a17b

    • SSDEEP

      12288:NjYlUdVCU5S41Yd2Z+pW/qF9vUi/zr4e56K0AbDcZ2yGTNGNPG8OcXDyHVZgPKpv:jVG46PFFNnH4NPucYNaPVWVZXp/

    • ISR Stealer

      ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

    • ISR Stealer payload

    • NanoCore

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

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks