Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2c1a7b01015728…

MALICIOUS

PDF

41.6 KB Created: 2020-08-10 13:03:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd05c66d59ad64a7e3bccb4ca18fe4fb SHA-1: 0b2338e443d4fd3eafbec15ca39c7a187c70225a SHA-256: fa2c1a7b01015728ad8f81556e3fe1641244520b5a471adf993ac5b25691efb0
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 hosting PDF files, and one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=discovering+mathematics+3a+pdf', indicating a lure to a malicious site. This suggests the document is designed to redirect users to potentially harmful content through a link farm.

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.cc/pify?keyword=discovering+mathematics+3a+pdf In PDF document text
    • http://files.sfsailing.org/uploads/1/3/1/3/131384604/xolivokumukefofoxofo.pdfIn PDF document text
    • http://files.carolinagreenindustrynetwork.com/uploads/1/3/1/6/131606487/1731aa872b4ad.pdfIn PDF document text
    • http://files.ucitylourdes.org/uploads/1/3/1/4/131437919/9c90700803b9.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/1/0432/6300/0736/files/surah_al_baqarah_english_translation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/4379912522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9480/2581/files/49954024527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8367/7339/files/13236124364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/bilusowep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5093/3156/files/66555006483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9503/9905/files/riwakev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7498/files/48855300188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/mamizovonisolazakepunawej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5381/7749/files/katinalodoxukunuwudis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0813/7128/files/applied_maths_1_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/36323673639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/53705707454.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 7

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_off00006333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6333 5760 bytes
SHA-256: 25f266a790911379f777eb491d282b3dc6283aba1c3f9ebe1d51e0b58fc79697
font_01_sfnt_off000076a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A0 10204 bytes
SHA-256: fe69f187bff6a778a51d453cc5a60387cb7ae5620000ebc56cb689dea1153415

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