Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5da8216de928c96…

MALICIOUS

PDF

70.7 KB Created: 2021-02-21 19:08:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3b2d09ba51394650f888a8e0316f6be1 SHA-1: 885131c31093f67e93d86798b2c82b5fc08b9493 SHA-256: d5da8216de928c9629c3e1c68df45040e479a10ae383c6d8b16572aff2072e0d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://baarspo.ru/wix?keyword=east+rutherford+montessori+school+reviews PDF link annotation
    • https://cdn.sqhk.co/lojosewude/jhgebgg/66961079780.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzefoke/jWvrrjd/money_lobby_gta_5_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/zolokike/V6dYMno/vibefat.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/dggYIii/gmod_addons_not_showing_up_in_folder.pdfIn PDF document text
    • https://cdn.sqhk.co/busumodofu/eTXgfjg/truck_driver_cargo_3d_mod_apk.pdfIn PDF document text
    • https://tixusevonatafix.weebly.com/uploads/1/3/4/6/134611731/mararemewifujax.pdfIn PDF document text
    • https://cdn.sqhk.co/tumosirewuw/fXtHjXP/scent_of_a_woman_kdrama_mydramalist.pdfIn PDF document text
    • https://kogekotosejikol.weebly.com/uploads/1/3/5/4/135400664/jokalofit-pupuko.pdfIn PDF document text
    • https://cdn.sqhk.co/tajavujexiz/Bhaq2ha/mystic_messenger_707_normal_ending.pdfIn PDF document text
    • https://cdn.sqhk.co/guwaloxipete/hgDOhgj/toca_hair_salon_4_hairstyles.pdfIn PDF document text
    • https://cdn.sqhk.co/xawobovuji/HfGzogc/74344073756.pdfIn PDF document text
    • https://pefikasulanak.weebly.com/uploads/1/3/4/3/134350375/428773.pdfIn PDF document text
    • https://cdn.sqhk.co/nixenexax/idXgdNn/48594085990.pdfIn PDF document text
    • https://cdn.sqhk.co/bujerinalo/esIijhh/toca_boca_mini_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/gutuxegiwad/PfihXge/hatchimals_colleggtibles_cosmic_candy_limited_edition_secret_snacks.pdfIn PDF document text
    • https://cdn.sqhk.co/xororofomed/gfSiZUE/free_download_rpg_offline_games_for_laptop.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/gPjaihN/hair_salon_for_little_girl_near_me.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gotitibekovi/75390269096.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/49209120634.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/52942961419.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/pc8_application_form_australian_passport.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C6 5252 bytes
SHA-256: 5bcb575db14d51feb690ab1c7d2af203110ab50e2f52695518d4003c289a9d3e
font_01_sfnt_off0000db8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB8B 10412 bytes
SHA-256: 5f929735d0aeb7a0f5345cdeabe519395875c35ba031c68e3202e270d7760977
font_02_sfnt_off0000ff2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF2B 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.