Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb6e7648ca0892a…

MALICIOUS

PDF

46.8 KB Created: 2020-08-21 05:26:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5332594f5cbe30c66e37a7f0ea38889f SHA-1: c61ddae5cbdf5c7d3417b6128d6e15cd482d61c1 SHA-256: 3eb6e7648ca0892a9970fb48c52dcd15dd7cdb9ec22f96e7805a0c371b9075e1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Ccleaner professional for pc' and a URL that appears to be a lure. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further supports the interpretation that this document is designed to trick users into downloading content. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ccleaner+professional+for+pc.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ccleaner+professional+for+pc In PDF document text
    • http://files.nahnkc.com/uploads/1/3/0/7/130776821/40c044857c2d875.pdfIn PDF document text
    • http://files.kamifitness.com/uploads/1/3/2/6/132695258/5ca4e.pdfIn PDF document text
    • http://vuxefuj.myenchantedlocket.com/uploads/1/3/1/6/131606349/3191c36f90d0d8.pdfIn PDF document text
    • http://files.valleybookstore.com/uploads/1/3/1/3/131380337/392d360.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/1/0431/7249/5519/files/95421314038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/vascular_plants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/wubupotebariwukimolim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7780/3931/files/survey_questions_answerable_by_yes_or_no.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4245/6231/files/ischemic_heart_disease_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9292/files/biological_diversity_act_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2308/8290/files/93750691094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4701/0972/files/c_h_spurgeon_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2764/5084/files/ikea_bed_sheet_size_guide.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 2

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_off000077d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D1 4916 bytes
SHA-256: 9cba97d29f3c9daee67354c71477fc2c56574a98b135b4740b25c88d03bf4439
font_01_sfnt_off00008888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8888 13052 bytes
SHA-256: a7b999e589906036147055325750da2b3ec68a4dfa68e996b90daca54c3fedb1

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