Malicious PDF — malware analysis report

Static analysis result for SHA-256 927e2be491f1ef6b…

MALICIOUS

PDF

42.1 KB Created: 2020-08-10 01:51:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0f810af31a6ffbf30e8f370fa6d99c1 SHA-1: 42c03e4d0f25f198ee6015e2818517e98f5637fa SHA-256: 927e2be491f1ef6b399bb9cd243ffcb39be3b467003d0cf73eac71980b4f57cf
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL that appears to be part of a link farm designed for SEO manipulation. The document body, though heavily obfuscated, contains the same malicious URL and other URLs hosted on Shopify, suggesting a lure to download content. The primary malicious URL is https://ttraff.cc/pify?keyword=naming+alkyl+halides+worksheet+with+answers+pdf, which is likely intended to redirect the user to a malicious site.

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=naming+alkyl+halides+worksheet+with+answers+pdf In PDF document text
    • http://files.wyonghighcareers.com/uploads/1/3/1/0/131070579/94bd3d5850ed24.pdfIn PDF document text
    • http://files.fullfledgedgutters.com/uploads/1/3/1/4/131437376/lanabijikebogumati.pdfIn PDF document text
    • http://files.equipoisemt.com/uploads/1/3/0/8/130814676/2017686.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/1/0430/3811/3955/files/vimoxerujepaderajejimup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27360052690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/lojutomufufupudesobif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6803/1143/files/10152377409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3958/0575/files/pofezepokix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3657/1805/files/matomujubusalomofevuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/cantico_delle_creature_analisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5053/1990/files/moluscos_caracteristicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7655/8746/files/bible_study_methods_rick_warren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/92047383812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7674/7413/files/analogy_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/senupuresu.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_off00006099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6099 5680 bytes
SHA-256: 5dd45a2b50d85e15f86b6535fadf3c5f22c7f379d85013e1ef6747353cbc9156
font_01_sfnt_off000073ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73EC 12104 bytes
SHA-256: 4b33cbe6ca53236a2fb25fe8053e93ef174c2ce14f0c1a35429e36be6eb0243c

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