Malicious PDF — malware analysis report

Static analysis result for SHA-256 776d9830613b2585…

MALICIOUS

PDF

40.4 KB Created: 2020-08-09 23:58:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 287f7bbc59c5c3501b2db837d87c717c SHA-1: 2a5ec634ee7c351044043a6077c771d422234c44 SHA-256: 776d9830613b2585eb295f69a9daa8dc790e576f6c3b991895b70ec6487c6300
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector to malicious infrastructure, indicating a phishing or scam attempt. The embedded URL https://ttraff.com/pify?keyword=dichiarazione+di+conformit%25C3%25A0+catastale+pdf is used to redirect users to potentially harmful content. The ML classifier strongly supports the malicious nature of this PDF.

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=dichiarazione+di+conformit%25C3%25A0+catastale+pdf In PDF document text
    • http://files.fnaq.org/uploads/1/3/2/6/132681304/8836484.pdfIn PDF document text
    • http://files.wyomingspeechlanguagehearingassociation.org/uploads/1/3/1/4/131409709/fudokef-kagiwomajapaj-xixamez-vipajadimagom.pdfIn PDF document text
    • http://files.doublemindedgod.com/uploads/1/3/0/7/130738531/86eeee540.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/1/0431/9569/5268/files/10963171390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5740/4318/files/brche_addition_und_subtraktion_aufgaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8992/0154/files/lg_portable_air_conditioner_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/zajewezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/bipolar_assessment_tool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8356/3162/files/list_of_words_with_synonyms_and_antonyms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/kumimerujewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/basic_construction_math.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lapifobojupe.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_off00005ead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAD 5680 bytes
SHA-256: ef4a10bed2f5bef6e87ed3ec88b435ec1450c925ce4b8b811bf897708edbe54a
font_01_sfnt_off00007153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7153 10316 bytes
SHA-256: 975b803dfeec38eee71f70668ee734d68a1171f54549c8d94ecd9eff23dda773

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