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Overview

overview

10

Static

static

5

15b2089990...1N.exe

windows7-x64

10

15b2089990...1N.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2024, 19:52

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General

  • Target

    15b2089990f297343963c24da6578e2f45573c1f521e07a8a952cf53cf445601N.exe

  • Size

    1.1MB

  • MD5

    bc1580083136b4d78a75b461c96b0360

  • SHA1

    9ba817f1337cb7750b677d66bcf234b20448ae54

  • SHA256

    15b2089990f297343963c24da6578e2f45573c1f521e07a8a952cf53cf445601

  • SHA512

    9aedb647c349bace67e0de0747f020c8916559680f9ac6d5647eb891d56d78b58f7685e8d423c7e7638e4b95c61157abb1aec51247579e8abd455e966b438908

  • SSDEEP

    24576:1AHnh+eWsN3skA4RV1Hom2KXMmHahZB/Nep86f3YAm4W5g:kh+ZkldoPK8Yahb/NKKAm9g

Score
10/10
nanocorediscoveryevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

160.202.163.242:6765

Mutex

c0a66e70-712e-4e13-85d0-5362a812b1a5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    160.202.163.242

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-02-24T16:03:16.653191036Z

  • 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

    6765

  • 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

    c0a66e70-712e-4e13-85d0-5362a812b1a5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    160.202.163.242

  • 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
  • Drops startup file 1 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\15b2089990f297343963c24da6578e2f45573c1f521e07a8a952cf53cf445601N.exe
    "C:\Users\Admin\AppData\Local\Temp\15b2089990f297343963c24da6578e2f45573c1f521e07a8a952cf53cf445601N.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DNS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4282.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3036
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DNS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp42E1.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4282.tmp
    Filesize

    1KB

    MD5

    c6f0625bf4c1cdfb699980c9243d3b22

    SHA1

    43de1fe580576935516327f17b5da0c656c72851

    SHA256

    8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

    SHA512

    9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\tmp42E1.tmp
    Filesize

    1KB

    MD5

    7620b805f7bc12c79e126656c858d0e0

    SHA1

    89f09b8b4ef1fc421ddf5ed0cbbe012fab7fd666

    SHA256

    4d6ea014d135bdc4a5fd4281ce705672561b0279deab4302e06cbfe95e1080a6

    SHA512

    b02ac735c98b20020251a23ffa1b0308ad3a1c99593a15a8020d742472b0d5c36caa31c6ca2372e88cfd3b6792206ea7920162c2a33c83da24f0098c0513f562

    Download Submit

  • memory/1896-3-0x0000000000770000-0x0000000000771000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3000-4-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/3000-9-0x0000000073C72000-0x0000000073C73000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3000-10-0x0000000073C70000-0x0000000074221000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3000-11-0x0000000073C70000-0x0000000074221000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3000-19-0x0000000073C72000-0x0000000073C73000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3000-20-0x0000000073C70000-0x0000000074221000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3000-21-0x0000000073C70000-0x0000000074221000-memory.dmp

    Filesize

    5.7MB

    Download