Malicious PDF — malware analysis report

Static analysis result for SHA-256 033ab176ec536a1f…

MALICIOUS

PDF

44.3 KB Created: 2020-08-08 21:24:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f1117742ed405cf0a6e71d02729105e6 SHA-1: c7ec31a7c11b73e5f063243e7775532716ad6900 SHA-256: 033ab176ec536a1f52ea3b04aa0975d5b8d6a1f060b8ea65dc5e4cb571410374
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as legitimate templates but redirect to malicious infrastructure, specifically the ttraff.com redirector. The document body, though heavily obfuscated, contains references to these links, indicating an intent to lure users into clicking them. The ML classifier strongly supports the malicious verdict, and the presence of redirector links points towards a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/pify?keyword=baseball+field+positions+template+pdf In PDF document text
    • http://files.swisscompleteeyecare.com/uploads/1/3/1/4/131453695/c9a94a04a488e.pdfIn PDF document text
    • http://files.beefcakedanes.com/uploads/1/3/1/8/131856852/pebimidunolusu-bojitip-ligetaja-kaligidejoza.pdfIn PDF document text
    • http://fosadede.centerforspirituallivingsouthernri.com/uploads/1/3/0/7/130775162/9528986.pdfIn PDF document text
    • http://pezofu.bournemouthoutriggercanoeclub.com/uploads/1/3/1/4/131453494/4359023.pdfIn PDF document text
    • http://files.firstbaptistwesterville.com/uploads/1/3/0/7/130739651/02e8fa31cda.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/webumupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0803/1893/files/basic_java_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7102/0957/files/bupizanesurani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/vamegogokifumowojumus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3654/9018/files/motocross_nitro_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9232/7077/files/rogoxunutazutidepuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2963/4970/files/lelajiwatolemepajeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/46749878172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6388/6495/files/nolevivanavisikuluwusufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8202/8958/files/newakogifitufemujesewug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/16037647870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/92366599147.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7F 5280 bytes
SHA-256: ab4d6cc1ed6c484dc4ca9835c193f21e28afb03b4a69be177b88a522130db1fe
font_01_sfnt_off00008163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8163 10240 bytes
SHA-256: 06fa789edb468e66be5bddcbd22a05de52c9b04c5a15501b27da2184d20b922d