Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ffb34fc6cd0456…

MALICIOUS

PDF

40.5 KB Created: 2020-08-19 11:43:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b66a986ef6d6424b1f4a2badf5328cac SHA-1: 5850e4ae0ef0c8c2c0567e8374657684fc29ddf3 SHA-256: 80ffb34fc6cd0456fc73a05643dc25d7f6de91b0c4486ea8594d1ba41ec6b0fb
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded content, though obfuscated, includes the malicious redirector URL and several benign-looking PDF links, likely to lend legitimacy. The primary malicious URL is https://ttraff.ru/pify?keyword=clasificacion+animales+segun+su+forma+de+reproduccion, which is known to lead to malicious infrastructure.

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=clasificacion+animales+segun+su+forma+de+reproduccion In PDF document text
    • http://debuk.bereanri.net/uploads/1/3/0/8/130874631/bunotit-tonojedojo.pdfIn PDF document text
    • http://xelusavim.christabolain.com/uploads/1/3/1/4/131483068/rotabusezo_muzorebasoxa_rezawavikukebi.pdfIn PDF document text
    • http://files.ornamentsofexpression.com/uploads/1/3/1/4/131455883/vojosa.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/1/0435/4444/5092/files/chinese_alphabet_pronunciation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8667/5109/files/nodapuwidabuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9323/7665/files/dimomaxogefufofazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/equivalent_ratio_tables_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2683/0744/files/barizuzubezezezubiwona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/christmas_carols_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1143/2867/files/69455737752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3387/7915/files/ritidufipedalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/kufasagimufofupatemolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/44560381844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1892/3686/files/online_adobe_reader_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9681/6282/files/13020567264.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE9 5380 bytes
SHA-256: 40151daf5f9b5889ef91f41482d29c98fcfc3a1ca6f69d124ea7ad73a5902384
font_01_sfnt_off00007113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7113 10484 bytes
SHA-256: 1fdf2bfc604d52ecca5ae77b36d90241302f8491938df807e91a1b2050810ec1

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