Overview

overview

10

Static

static

BL Draft.exe

windows7_x64

10

BL Draft.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    91s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    06-07-2022 03:18

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General

  • Target

    BL Draft.exe

  • Size

    656KB

  • MD5

    7fbb62fafae5738f6352d111615e6603

  • SHA1

    b9ef4b543caa94ffaa048c172c9c1057b0e5bfa2

  • SHA256

    23c4426e903f6582e520db422c88f2c9d9625a03c9c5afc5851ef858185fba7d

  • SHA512

    a9ce455f0322780ab6adbbbdd7bf02c775de06ebb7ecd839b36ced8c95d244728cb84923c34186ea597fab8e701c7beb5d1d662333adaf5bd533a927c54f0aa0

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealersuricatatrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

derananocore.ddns.net:1187

194.87.84.118:1187
Mutex

aee28d0a-78bc-4586-8c8c-8f93e292a11b

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.87.84.118

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-04-09T10:37:01.806212736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1187

  • 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

    aee28d0a-78bc-4586-8c8c-8f93e292a11b

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    derananocore.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

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
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BL Draft.exe
    "C:\Users\Admin\AppData\Local\Temp\BL Draft.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3932
    • C:\Users\Admin\AppData\Local\Temp\BL Draft.exe
      "C:\Users\Admin\AppData\Local\Temp\BL Draft.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1500

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\BL Draft.exe.log
    Filesize

    1KB

    MD5

    fc57dcb1a143324278cf61d88f8c67ad

    SHA1

    807d546b4296091d11a8df6a11157a5f12dd7fd5

    SHA256

    a75686eed807c36b056311dddc898582fd4063135fc5728d2bdd3c6e1f5ab688

    SHA512

    33ac55a68ac8371bf00af55e38455e886dc6aa681388622a55bf4473b1f4eda4d75a8211ea61df288ccdb26e838785da08094a7f1aac878da6ccd2e573f3bcb8

    Download Submit
  • memory/1500-136-0x0000000000000000-mapping.dmp
    Download
  • memory/1500-137-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/3932-130-0x0000000000690000-0x000000000073A000-memory.dmp
    Filesize

    680KB

    Download
  • memory/3932-131-0x00000000054C0000-0x0000000005A64000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/3932-132-0x0000000004FB0000-0x0000000005042000-memory.dmp
    Filesize

    584KB

    Download
  • memory/3932-133-0x0000000004FA0000-0x0000000004FAA000-memory.dmp
    Filesize

    40KB

    Download
  • memory/3932-134-0x0000000008CE0000-0x0000000008D7C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/3932-135-0x0000000008EF0000-0x0000000008F56000-memory.dmp
    Filesize

    408KB

    Download