Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1295c4b86237af…

MALICIOUS

PDF

41.9 KB Created: 2020-08-10 00:46:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93b64630c985403b1206da8f6fc3ed90 SHA-1: 347f28b68ee49eb5056bef0259f42e6815eb4789 SHA-256: fc1295c4b86237aff772317075db5bbd90f6a574176d97da12a4ed51f43f3a36
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.com. The document body, though heavily obfuscated, contains text related to 'class 11 biology short notes pdf' and the malicious URL, suggesting a lure to trick users into downloading potentially harmful content. The presence of a malicious redirector link indicates a phishing or content-luring attack.

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.com/pify?keyword=class+11+biology+short+notes+pdf In PDF document text
    • http://memerodof.birdseywoodworking.com/uploads/1/3/1/6/131606407/nisiroxonume.pdfIn PDF document text
    • http://files.intricatetaste.com/uploads/1/3/0/9/130969800/nemazexum.pdfIn PDF document text
    • http://files.aperfectpairshoes.com/uploads/1/3/1/3/131379552/diwozixa.pdfIn PDF document text
    • http://rogobove.thebirthyurt.com/uploads/1/3/2/8/132814930/nerasoxep.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/1/0440/3593/2310/files/upl_add_java_classes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8922/9979/files/jodisixoxanuronupabat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5090/1402/files/xebetilivetig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/javascript_string_to_lowercase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5813/3152/files/62936786196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1994/3579/files/85488188943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3477/7499/files/70835923947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7917/1222/files/giborofoxoxebimogidisiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/voduvux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/rumusexif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/icao_annexes_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sigejorivuzogekos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7960/5147/files/calculus_early_transcendentals_rogawski.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 2

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_off00006516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6516 5500 bytes
SHA-256: fd66d82ae15aea8e222f5a94d55e5b235f0a08eeb423c83fbc1336a9773f80b4
font_01_sfnt_off000077c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C8 10200 bytes
SHA-256: 1e766a80e7f07009ddeacc7185579edbd51e539a5caf1bdd7ef515915f1cf693

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