Malicious PDF — malware analysis report

Static analysis result for SHA-256 de11354dfc61c441…

MALICIOUS

PDF

50.4 KB Created: 2020-08-26 17:25:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fae10aad67b516f6bb1e3c4d5c6288bc SHA-1: 59a27a57149b63e55c0105f2378ddc4c01377ea3 SHA-256: de11354dfc61c4419faa6ee998093241719f05a8a20cd243a96862dafec14dd3
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 directs to a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to lure users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=mod+load+order+fallout+4 In PDF document text
    • http://vazaje.florianatorelli.com/uploads/1/3/1/3/131398140/4002268.pdfIn PDF document text
    • http://files.bayterracesadoptablock.com/uploads/1/3/1/3/131383889/8599472.pdfIn PDF document text
    • http://files.worldpairsangling.com/uploads/1/3/1/4/131452883/fubokozapewanomasu.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/1/0438/4597/6224/files/tikonanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1517/5335/files/formal_letter_pattern_in_english_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9289/3093/files/58057320469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/70995513922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0264/0030/files/aris_gallios_chicago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0509/9675/files/advantages_of_triple_bottom_line.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8185/9225/files/mokowexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4275/0114/files/32722961343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4300/4322/files/gegabukekekimimunibepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/witcher_3_where_to_buy_gwent_cards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5213/7625/files/maplestory_m_skill_guide_bowmaster.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0012/files/lapigumivuban.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7074/9861/files/novesepanikotepinav.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 5

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_off0000881f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x881F 4816 bytes
SHA-256: a122bcbd9d93bd280459c39d5ccceccf1148e89ade906ee3654c31bb5bef026a
font_01_sfnt_off0000989e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x989E 10588 bytes
SHA-256: 3c27f83da3ed141bb67e682a8d6365f3c10257199c90f467f1d731c0e9354663

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