Overview

overview

10

Static

static

Informaci�...20.exe

windows7_x64

10

Informaci�...20.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    157s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:59

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General

  • Target

    Información confidencial de entrega Chile AD0AhFnh2020.exe

  • Size

    395KB

  • MD5

    91525a4a2e396ba3f30e5b583ce3a7ad

  • SHA1

    385952cc0201d064322179a2c25cdd1e80a5acd8

  • SHA256

    f728252169da3a6dc69cd201835230c017ce37c9a9cd06c1e7daa3153ebc6f80

  • SHA512

    40078e0b83b24fb85a2d88174118f1c29280ad0736d36785acdcb4ebd8688a0cadf28d809fb358229c3ad9e5640a93c2ba3f058773f6aa8a3e93c94f4cec6fe0

Score
10/10
nanocoreevasionkeyloggerspywarestealersuricatatrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

duckmeat.duckdns.org:5626

127.0.0.1:5626
Mutex

823e9a21-7dbc-4097-b6d6-cdb0b9b1e84c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-16T12:28:57.030902636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5626

  • default_group

    More

  • 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

    823e9a21-7dbc-4097-b6d6-cdb0b9b1e84c

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    duckmeat.duckdns.org

  • 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
  • suricata: ET MALWARE Possible NanoCore C2 60B

    suricata: ET MALWARE Possible NanoCore C2 60B

    suricata
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Información confidencial de entrega Chile AD0AhFnh2020.exe
    "C:\Users\Admin\AppData\Local\Temp\Información confidencial de entrega Chile AD0AhFnh2020.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3136
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ldruAyVGyGXNAY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5DFA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2420
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3032

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5DFA.tmp
    Filesize

    1KB

    MD5

    3f9ca6499d93fe0daef4e2c4c73a80cb

    SHA1

    14b4ee9477da5fde94bd08c9baefffe7e546d81a

    SHA256

    aef42f79ac76ff3b8077cfe2a4cdf69606cb4493cf7cdbfb197596fdd2668498

    SHA512

    ef7f8c3f99c4e628e4b22cc5ca4e2e6755bee5d51acec7fcb8472d5351a6d307824d7a4c33c4b8ba3135644c8f00daa109a473453c96aca7631cfd5de24c8a47

    Download Submit
  • memory/2420-131-0x0000000000000000-mapping.dmp
    Download
  • memory/3032-133-0x0000000000000000-mapping.dmp
    Download
  • memory/3032-134-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/3032-135-0x00000000752D0000-0x0000000075881000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3136-130-0x00000000752D0000-0x0000000075881000-memory.dmp
    Filesize

    5.7MB

    Download