Malicious PDF — malware analysis report

Static analysis result for SHA-256 209d129c7f5d59c4…

MALICIOUS

PDF

72.4 KB Created: 2020-07-28 18:51:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d66c81095d405dcbf8b586067a6bd07 SHA-1: c7dcdab7ab9d88d05ebf04e8268d80dc9b04c625 SHA-256: 209d129c7f5d59c4d305932a4c861b9c2472b5eaa0bb6250ce74d9c740829d42
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, identified as a PDF link farm. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, appears to be related to 'Diseño elevador de cangilones pdf', suggesting a lure to disguise the malicious intent. The presence of numerous Shopify links, while some are benign, contributes to the overall link farm strategy.

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.ru/pify?keyword=dise%25C3%25B1o+elevador+de+cangilones+pdf In PDF document text
    • http://files.blackhillsponderosaplace.com/uploads/1/3/2/7/132710763/c71fded.pdfIn PDF document text
    • http://files.teach-me-today.com/uploads/1/3/2/6/132683267/1670675.pdfIn PDF document text
    • http://files.howardconcretepumping.com/uploads/1/3/0/8/130814258/gesasogimelifipikuvo.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/1/0436/9963/4328/files/71894295616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/64833284345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9066/4860/files/tututexezol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/17519072292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/woxesixifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/rowukosizogirikosox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9234/4999/files/baxitisawax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8624/1187/files/vamafowipuwejosalolimevik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/lapobazesifosevipiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/81406820469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4179/1895/files/68951244754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/68639948829.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEE7 5304 bytes
SHA-256: b84a3aad9f7252a83fd125d509a3ad007e7c0bdc5388a3a14a47b66cff8bf8ad
font_01_sfnt_off0000d0bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0BC 13880 bytes
SHA-256: d35716be57a89ddb80c45966f890da015a9f50179c40e844a5d605835786f620
font_02_sfnt_off0000fbf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF3 16324 bytes
SHA-256: ee42d7abba980986a0764b81b033cb9d35c699455efe678bb029cbd9eff3129a