Malicious PDF — malware analysis report

Static analysis result for SHA-256 79031c8dc83bb11b…

MALICIOUS

PDF

46.2 KB Created: 2020-08-14 03:07:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d97d00b8f369a3838b35fa55f164fec3 SHA-1: a0062b5ec27ad58e98b572df7294eed45038aa98 SHA-256: 79031c8dc83bb11bdbf9a40142bf05cee61d71932b49f3c7d3a43628428235d8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=bollywood+box+office+capsules+report', which is also flagged by heuristics as a malicious redirector. This suggests the PDF is designed to lead users to malicious content through a link farm and SEO redirection tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.ru/pify?keyword=bollywood+box+office+capsules+report In PDF document text
    • http://files.mrbalint.com/uploads/1/3/0/7/130740252/mozozavile_vizanu_pijupoj_venijaxitidopew.pdfIn PDF document text
    • http://files.theflyingcannibal.com/uploads/1/3/1/1/131164446/lunerenuvewonawike.pdfIn PDF document text
    • http://ruwojar.sophulart.com/uploads/1/3/1/3/131383548/kijifanisadu_vakakobife.pdfIn PDF document text
    • http://files.doubletalkspeechtherapy.com/uploads/1/3/1/4/131453251/b338a4b1413dd64.pdfIn PDF document text
    • http://files.michigancourses.com/uploads/1/3/0/8/130814466/1771020.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/1/0449/9429/8014/files/pdf_file_download_for_mobile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4377/7694/files/ielts_speaking_vocabulary_words_with_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/65491112482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8331/6891/files/62893986150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5029/5708/files/sherlock_season_3_episode_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0019/1400/files/cardiac_rehab_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/definicion_de_contaminacion_ambiental_segun_autores.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3167/3502/files/zibomabera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9486/8122/files/81428350322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7689/4372/files/9801767283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6949/7753/files/75792093454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/lofoperujotodul.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_off000069f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F6 5600 bytes
SHA-256: c64c6002b49d327acbd5e0df30dd80622344dcffaa1e8db1d15dc56a374b8b0c
font_01_sfnt_off00007d27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D27 14844 bytes
SHA-256: 14626eaae86b5a5b0facd3d6e0088b0bce52cea63e3367e70bd133b7c80d9b0f