Malicious PDF — malware analysis report

Static analysis result for SHA-256 deeda7679aa06f76…

MALICIOUS

PDF

45.4 KB Created: 2020-08-18 22:29:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d34188957f2e65480af26a450226829 SHA-1: 3d319e0d4bf44ac2c1315be893c35362d0ac1bbc SHA-256: deeda7679aa06f76e23f1a6f2556f9716f78afe15bf5e51f443da524b170eafd
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, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The document body text, though partially corrupted, suggests a lure related to a participation certificate template. The primary malicious link, 'https://ttraff.cc/pify?keyword=attestato+di+partecipazione+template', is a critical finding indicating an attempt to redirect the user to malicious infrastructure. The presence of a link farm and a malicious redirector strongly suggests a phishing or social engineering attack.

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=attestato+di+partecipazione+template In PDF document text
    • http://wologuxuw.be-brave.shop/uploads/1/3/2/6/132682347/3227667.pdfIn PDF document text
    • http://files.chilhowiecc.com/uploads/1/3/0/8/130813701/jepivarunoseto.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/1/0427/9782/6207/files/wegerofelovoximepumoruwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/83551773761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/71766814145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6464/6049/files/the_witcher_enhanced_edition_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/sikoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/77124749418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4574/6838/files/97696557580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2488/7456/files/bilangan_rasional.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4347/1003/files/visio_2010_tutorial.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_off00006cf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF5 5256 bytes
SHA-256: 8b1b2145a0d8a9faed07fa94b1aed5d8ab06153e5bc3e8691963847837f90d9a
font_01_sfnt_off00007ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBC 13908 bytes
SHA-256: a7b9f7db16ba009c51011d0d783ae25de3d0439fc3cec355099ae47dc754d109

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