Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a26ffc681185e83…

MALICIOUS

PDF

48.7 KB Created: 2020-08-11 20:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e42341d8669da6ac5e7ac0e5eb373329 SHA-1: 8e6f07914c569285886810100f7413c1b91a9b4d SHA-256: 7a26ffc681185e8357f21867a154a834d2b30aa9365084cdcb7c402cf8e0ad0c
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to lure users with promises of free PDF downloads. The primary redirector URL, https://ttraff.com/pify?keyword=alta+fidelidade+livro+pdf+download, is flagged as malicious. This suggests the document's purpose is to drive traffic to malicious or deceptive content, likely for phishing or malware distribution.

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=alta+fidelidade+livro+pdf+download In PDF document text
    • http://files.homelesshaventv.com/uploads/1/3/0/8/130874102/47a2151b05eff.pdfIn PDF document text
    • http://zuxekiwe.bobbebold.com/uploads/1/3/0/8/130814237/fokudewemole.pdfIn PDF document text
    • http://files.sparxelectricalcontractors.com/uploads/1/3/2/6/132695586/8127574.pdfIn PDF document text
    • http://files.sfabsm.org/uploads/1/3/1/3/131383583/tesoruta.pdfIn PDF document text
    • http://files.stoprethinkspeak.org/uploads/1/3/0/7/130775998/4933628.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0430/3467/3305/files/11941095774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/muzubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4457/5131/files/57630203815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5290/0260/files/bravos_tulsa_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77330784460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6482/6783/files/akmn_beden_dili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/puwunutibodilaramevoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9911/9013/files/77220516167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8683/4851/files/pozum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0013/3793/files/42247728833.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7642 1960 bytes
SHA-256: d16ec312b529d5aeed36d126230986cf3910e9d11558a5fa61ba94565bc700c3
font_01_sfnt_off00007f74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F74 5000 bytes
SHA-256: 53a241fbe77bebede004bcb70709ccce17fbec163b8aabc81f89ead157404b56
font_02_sfnt_off00009099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9099 10892 bytes
SHA-256: 9b0ac0076ebd8f0d5875250c603d7fecff8f61aa298f6f8ed5a539456173d45e

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