Malicious PDF — malware analysis report

Static analysis result for SHA-256 5753177e9b898b55…

MALICIOUS

PDF

46.4 KB Created: 2020-08-04 08:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04b500d0dfbec49e26f4f86c901b2165 SHA-1: 568606b799955c9e081c635af214d4054b52e7c8 SHA-256: 5753177e9b898b55e39cf522a54cff2545612e39f452ec512f4decf7ec5bac61
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The primary malicious URL is https://ttraff.cc/pify?keyword=diccionario+de+la+real+academia+espa%25C3%25B1ola+de+la+lengua+pdf, which is likely part of a phishing or social engineering campaign. The ML classifier also strongly indicated maliciousness.

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=diccionario+de+la+real+academia+espa%25C3%25B1ola+de+la+lengua+pdf In PDF document text
    • http://files.rimrockmanagement.biz/uploads/1/3/2/7/132740501/lagusazuxujo_kedip_nexozi.pdfIn PDF document text
    • http://files.yonemoto.com/uploads/1/3/1/4/131453897/545605.pdfIn PDF document text
    • http://files.rubylightportraits.com/uploads/1/3/1/1/131163761/3958076.pdfIn PDF document text
    • http://files.paramountrec.com/uploads/1/3/0/7/130775827/wanuvawofi.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/1/0436/0821/1619/files/99398919402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lufixupiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0078/9154/files/kitegawerabonixeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/84186891084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78030006053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/davijikejokuwajipivozid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/7840417008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2745/5387/files/4th_grade_math_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3844/8548/files/59869924542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9742/4026/files/katumetabeleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2173/7882/files/zilevakuwasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/20320244160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4031/files/suwitupewukujexob.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000723b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x723B 5684 bytes
SHA-256: 67b144e7ab580ba8d5732c303a1684c789e4b6c299e3cb6d8134dec81d9de01a
font_01_sfnt_off0000853f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x853F 11236 bytes
SHA-256: 4a7d6048b68c68424ff5bd9b3e763d0db0f065af65505e557b50352ba4ecd6af

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