Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee1dee2aa23b62d…

MALICIOUS

PDF

44.9 KB Created: 2020-08-26 10:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3651303089bb0645692407d28c31e8d SHA-1: 62866610b097014c9445963fd5e127bba81ae5de SHA-256: bee1dee2aa23b62da14650f2149720f410543eeb832625a8c80d36888efaa273
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 of which are hosted on Shopify but one points to a suspicious domain (fikub.valeriepaykov.com). The primary malicious link, ttraff.cc, is identified as a known malicious redirector. The document body, though heavily obfuscated, contains references to the book title and the malicious redirector URL, suggesting a lure to external content.

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=libro+ventajas+de+ser+invisible+pdf In PDF document text
    • http://fikub.valeriepaykov.com/uploads/1/3/1/0/131070420/19a0c75a.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/1/0437/2276/8538/files/bewafa_hai_tu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1024/4256/files/81702263199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/21707356077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9887/3763/files/76361698497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6921/0773/files/wuzisezasafofaxadigadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/71241058786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/gerawulizonolamav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/circle_equation_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2328/6940/files/81654518362.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 1

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_off00006f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1C 5252 bytes
SHA-256: 239402e33daa61a775d46dd3a20559e000229a92e409ac0483b37e5674ae30ad
font_01_sfnt_off00008104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8104 11248 bytes
SHA-256: b8ba49280fafcb9231040cd34f19a2066f98de6a3466ac8f9e307fd808f06c23

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