Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a7fc1d32788743f…

MALICIOUS

PDF

40.0 KB Created: 2020-08-15 03:17:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b951be010240301ddfed2f959c58bb43 SHA-1: 824ba9da0f33c00715096098c25ce97ba12ee2db SHA-256: 7a7fc1d32788743fa878edcfb021dc19aead68c483f0b1e21376b34d82819e08
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at `https://ttraff.com/pify?keyword=christmas+invitation+template+pages`. The document body, though heavily obfuscated, also contains this URL and references to other PDF files hosted on Shopify. This suggests a link farm or phishing campaign designed to redirect users to malicious content. The ML classifier strongly supports the malicious verdict.

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=christmas+invitation+template+pages In PDF document text
    • http://files.stoneranchpta.org/uploads/1/3/1/3/131398085/kezulede_nabilagebo_xegapukib_natilaru.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/1/0430/6590/1210/files/juruvowurevudadep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6572/1503/files/bujerelewofibedoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/jaxojigoxoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4015/2479/files/renatinifujub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6248/5407/files/86285711273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1460/files/bamuwewir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37638787324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/raluto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/kuzotovomatajobasivogaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/kefapo.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
🗂 Part of campaign: delightedbyyare.com 3 samples

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_off00005e48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E48 5200 bytes
SHA-256: 72e7f41aafb7f16cc696d27f2c597691dc557766764de4dd97078cdc64acad89
font_01_sfnt_off00006fd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD6 10408 bytes
SHA-256: d88a8a58bc29801cd5e0ded18d21ad07ffb50b1c671df2eeabea1cf62b348e97

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