Overview

overview

10

Static

static

Doc_1131_06082020.exe

windows7_x64

10

Doc_1131_06082020.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:41

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General

  • Target

    Doc_1131_06082020.exe

  • Size

    829KB

  • MD5

    d98b1bdbaed4370fbd8149ed8ed6ff0d

  • SHA1

    569c3f8953a41b67899da75fa08904f27570eaaf

  • SHA256

    035b8ce67efb5d796a066f6b2ae1448abdf6637810bc0a1cf6293680aa219dd3

  • SHA512

    197c18f694cba1f13798596c8048ce077c13fa26d46ba82673d30629f4d0166687308847a4a9c59198d586a37397168a3892bf8c703fe2fee64eef643a31903d

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

wazzy.ddns.net:1617

194.5.98.16:1617
Mutex

b39853d2-3362-44ed-b077-ce4405004573

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.5.98.16

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-05-15T21:12:30.224380736Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1617

  • default_group

    ch

  • 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

    b39853d2-3362-44ed-b077-ce4405004573

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    wazzy.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
  • 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
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe
      "C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.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
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WPA Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp57E.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1396
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WPA Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp975.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1252
    • C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe
      "C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe" 2 1664 7076642
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:296

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp57E.tmp
    Filesize

    1KB

    MD5

    b168eafe543b4da37d91a89f96d4add2

    SHA1

    4bae7b043fc7b1122c1c2c2a846a78853d72a26d

    SHA256

    dbdc78996c2732dde1ee4d300d61cdec602e16b88a55834e75143ee4e6c9e6e4

    SHA512

    93afdf23a3e12de2e1a704438245273422482c26d53cc2a6d46aa99475b60461c0f56f0e3ba95bf45c59db1267b73170ba7a5e50aef75080a51490ce19d6a0ec

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\tmp975.tmp
    Filesize

    1KB

    MD5

    4365cd1ae65923a319ef2683a45891fe

    SHA1

    85dde233112660e31c53884aedfbad52e4547e09

    SHA256

    84b6ce4ba26fa6fb57fa70b9ad191f7c42c71e259897955b5d514385bcd91b58

    SHA512

    d1bd24f504c5c2ecaa3ae98268ccc2e400ea3e16980c6caf394eadf7738225e4d5578fbe62bbe2de3fe0cb56a0d76bb3fc84cef3b9cd2f3d8be6d0becefdc035

    Download Submit

  • memory/296-56-0x0000000000000000-mapping.dmp

    Download

  • memory/296-62-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

    Download

  • memory/1252-66-0x0000000000000000-mapping.dmp

    Download

  • memory/1396-64-0x0000000000000000-mapping.dmp

    Download

  • memory/1664-55-0x000000000047D730-mapping.dmp

    Download

  • memory/1664-58-0x0000000000340000-0x0000000000378000-memory.dmp

    Filesize

    224KB

    Download

  • memory/1664-57-0x0000000000340000-0x0000000000378000-memory.dmp

    Filesize

    224KB

    Download

  • memory/1664-63-0x0000000074E10000-0x00000000753BB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1668-54-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1668-59-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

    Download