Malicious PDF — malware analysis report

Static analysis result for SHA-256 76265ecf5f645105…

MALICIOUS

PDF

43.3 KB Created: 2020-08-09 23:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64399e9ad23e0ffc08656affc5617140 SHA-1: d4fd8a23cb046d133ec6e7bb1d2a6d2f7cbe8aa7 SHA-256: 76265ecf5f6451052e27e09caea44279608b1b696bb81a7d7f8e71843c265696
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, many of which are hosted on domains associated with SEO link farms and redirectors. The primary redirector URL, 'https://ttraff.com/pify?keyword=ley+organica+de+la+administracion+publica+estatal+pdf', is flagged as malicious. This indicates a phishing or scam attempt where users are lured into downloading seemingly legitimate documents that ultimately lead to malicious infrastructure.

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=ley+organica+de+la+administracion+publica+estatal+pdf In PDF document text
    • http://files.shawnberrymusic.com/uploads/1/3/0/7/130738924/vazunigamof-nojugabali-rujemulujewurab.pdfIn PDF document text
    • http://teman.balancedguide.com/uploads/1/3/1/4/131407406/gaberoti.pdfIn PDF document text
    • http://begax.woodlandharvestmountainfarm.org/uploads/1/3/1/1/131164243/87953ecec.pdfIn PDF document text
    • http://files.ziontbc.com/uploads/1/3/0/9/130969037/sikobovo-tisazufufo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6376/9243/files/77339362108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/sisekegibapewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9930/6650/files/mastoiditis_aguda_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5073/6533/files/ge_profile_dishwasher_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7432/9499/files/flush_by_carl_hiaasen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/vesperia_secret_missions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4959/8632/files/62658432257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8010/5630/files/76233768899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/tawisokeletizuwaniwari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/rujetamegajukasop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6232/files/zovonitefopadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2635/7160/files/84380038243.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C2E 5540 bytes
SHA-256: 0096e32614cdabf2bd8d56822c61f6162cb0a0973fe96dc9f5278a9d1e0b1357
font_01_sfnt_off00006ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF1 10092 bytes
SHA-256: e5e525812e175a0535cd0fecaadcd5fc417f8e88006139034710eac77d7fabf7
font_02_sfnt_off00008ffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFC 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378