Overview

overview

10

Static

static

8

3af45339c0...53.exe

windows7_x64

8

3af45339c0...53.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-07-2022 18:17

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    3af45339c0c5cf4fff07c8f46423e5b88a7d423b76b0809a3f9952671fa19f53.exe

  • Size

    1.4MB

  • MD5

    26baf2fbfd19fc2b3fdd3bfb9ccc94d0

  • SHA1

    b956e2cc743f37cc07d68bbca6125575d55dcf5d

  • SHA256

    3af45339c0c5cf4fff07c8f46423e5b88a7d423b76b0809a3f9952671fa19f53

  • SHA512

    da130f671883287756eb2fd3163b907a1be8947f81e6a24880c06b762d5190b5ee5488a699319871aa2f48075de225e838377c5c0d92fd8702702a4a4509138f

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojanupx

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

noway74.ddns.net:5556

Mutex

06de780d-2603-4153-bb0d-62b9de2c5ca5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    noway74.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-03-22T11:00:54.031861436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    5556

  • 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

    06de780d-2603-4153-bb0d-62b9de2c5ca5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    noway74.ddns.net

  • 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
  • UPX packed file 2 IoCs

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

    upx
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

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

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3af45339c0c5cf4fff07c8f46423e5b88a7d423b76b0809a3f9952671fa19f53.exe
    "C:\Users\Admin\AppData\Local\Temp\3af45339c0c5cf4fff07c8f46423e5b88a7d423b76b0809a3f9952671fa19f53.exe"
    1⤵
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2796
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2656

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

Query Registry

3
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2656-132-0x0000000000000000-mapping.dmp
    Download
  • memory/2656-133-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2656-138-0x0000000073740000-0x0000000073CF1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2656-139-0x0000000073740000-0x0000000073CF1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2796-130-0x0000000000A00000-0x0000000000BE7000-memory.dmp
    Filesize

    1.9MB

    Download
  • memory/2796-131-0x0000000000A00000-0x0000000000BE7000-memory.dmp
    Filesize

    1.9MB

    Download