Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7fddf48d070221d…

MALICIOUS

PDF

35.8 KB Created: 2020-08-11 08:47:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6827dc6f9189f644d6fcf8b7a418d12d SHA-1: 2ee5d0f8591161a1eea97caafe6dd9798a2cf88b SHA-256: e7fddf48d070221dfe46450a674852e703fbc0341b9478bdd2f07785bb84c13f
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.cc/pify?keyword=big+ideas+math+geometry+pdf+chapter+1'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on Shopify and other domains, suggesting a link farm or redirection scheme designed to lead users to malicious content. No scripts were extracted from this sample.

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=big+ideas+math+geometry+pdf+chapter+1 In PDF document text
    • http://wibawi.stpiusinprint.co.uk/uploads/1/3/1/3/131383297/bitowoxefoguf_bidijavabuvapiz.pdfIn PDF document text
    • http://fefodazo.meadowsoflaurelwood.com/uploads/1/3/2/7/132740720/virulivevinobedirix.pdfIn PDF document text
    • http://files.australiancyclingteam.com/uploads/1/3/2/7/132712093/momizanivug.pdfIn PDF document text
    • http://fivenulid.kovanis.com/uploads/1/3/1/3/131380213/7b74a6bcb4b65.pdfIn PDF document text
    • http://files.ashagarrattmakeupartistry.com/uploads/1/3/0/7/130739517/7b6ddf451ef88.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/1/0438/9571/8040/files/nested_list_weight_sum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0612/2393/files/tuvulus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1500/4582/files/35615586329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5540/7519/files/pilofamibetadotijoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6810/4602/files/mapupaxaxuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1007/1460/files/zirizagidobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5673/4109/files/84316063848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/lebanefor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5710/9402/files/fiwumomasawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5431/6197/files/32518987094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/58848619693.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_off00004c9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C9F 5740 bytes
SHA-256: 5a1ac48b3e29a4b0fe7b6a9d9f7216a42497fde675922ed9ba403034c8dd8091
font_01_sfnt_off00006011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6011 9912 bytes
SHA-256: 6b9d90d85227bd3fd6c2cb598724611b58ffa2528e98139acdffe74a4fb105c5

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