Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa8b3cfd2f59faf5…

MALICIOUS

PDF

48.4 KB Created: 2020-08-03 15:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 776d737f0f29daf46b579b562d5fc4cc SHA-1: c523b67275163c03e0e012d8c66383037dfe8b11 SHA-256: fa8b3cfd2f59faf5bcb6b111a9646c699b50473af38ee2f42ce084e2be7685f7
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to technical aspects of alcoholic beverages, likely used as a lure. The presence of numerous links to external PDFs, many hosted on Shopify, suggests an attempt to create a link farm for SEO manipulation or to distribute further malicious content.

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=handbook+of+alcoholic+beverages+technical+analytical+and+nutritional+aspects+pdf In PDF document text
    • http://files.szuyunwang.com/uploads/1/3/1/4/131407227/zesexizugeseriw-lovujexose.pdfIn PDF document text
    • http://files.rockabuybaby.shop/uploads/1/3/2/6/132695244/ed7098c291844c.pdfIn PDF document text
    • http://files.southtownscatholic.org/uploads/1/3/1/6/131636990/3996155.pdfIn PDF document text
    • http://files.annasaoc.com/uploads/1/3/1/8/131872198/bd91fad.pdfIn PDF document text
    • http://files.papanoelstore.com/uploads/1/3/1/4/131438510/bazisomuju.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/1/0428/9835/8432/files/1028728638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/wanevemawuwuriremuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5769/2320/files/lufesur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3294478915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/kotona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/59845797741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/42661601566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8543/6830/files/34504350665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/gudenuzulejolejoniwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9382/6467/files/xafek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8837/1107/files/5327810270.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_off00007c1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1F 5744 bytes
SHA-256: 4a0d581b902e8ee058a72f73f3c86b3e4ac0cc5a1fe549f09c14fb602b204651
font_01_sfnt_off00008fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB9 10608 bytes
SHA-256: 3655f4835f7a5d9b6f63934e9e9181a8ca921a5225102a8523f704a7e3353590

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