Overview

overview

10

Static

static

PO 4993837.exe

windows7_x64

10

PO 4993837.exe

windows10_x64

10

Analysis

  • max time kernel
    145s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    24-06-2020 15:09

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General

  • Target

    PO 4993837.exe

  • Size

    1.3MB

  • MD5

    54c5c7e6e79dee508851549861c453a9

  • SHA1

    a92f515a0510feaf981f0d2b544aa602a346177b

  • SHA256

    582ec0985f0066dab40c455d1f8e6c414d9d5d0c156f673c6327efb901d97542

  • SHA512

    52400a6a6a6c2e272c792e80238fc82d2e0d987f54d521b15ffa456a8dae471b97efd8806cc876ef54992149b2563366ea0eaf97902088a0b17e309a0da76a68

Score
10/10
evasiontrojankeyloggerstealerspywarenanocorepersistence

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.140.53.12:1985

Mutex

76b99e5b-25c3-4464-b518-9c818a6b16d3

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-16T15:41:37.080532036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1985

  • default_group

    kdott

  • 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

    76b99e5b-25c3-4464-b518-9c818a6b16d3

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    185.140.53.12

  • 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

  • Suspicious use of WriteProcessMemory 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • NanoCore

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

    keyloggertrojanstealerspywarenanocore
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Drops startup file 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Adds Run entry to start application 2 TTPs 1 IoCs
    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO 4993837.exe
    "C:\Users\Admin\AppData\Local\Temp\PO 4993837.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Drops startup file
    PID:2540
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Checks whether UAC is enabled
      • Suspicious use of AdjustPrivilegeToken
      • Drops file in Program Files directory
      • Adds Run entry to start application
      PID:2812

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

  • memory/2812-0-0x0000000000500000-0x0000000000538000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2812-1-0x000000000051E792-mapping.dmp
    Download