Malicious PDF — malware analysis report

Static analysis result for SHA-256 654b16eea5c8a980…

MALICIOUS

PDF

38.2 KB Created: 2020-08-06 08:12:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7322553822e5b814fc99c965b60b2d4 SHA-1: bbb2d3b12d78dfa2fcd50413287446014c40619b SHA-256: 654b16eea5c8a98085654c058c582871bc4cf30c0f5b297a8c2ac55bf572d0d4
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=12+major+scales+alto+sax+pdf', is used in conjunction with a link farm strategy to disguise the malicious intent. The document body, though heavily obfuscated, contains this URL, suggesting a phishing or scam attempt disguised as a free download.

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=12+major+scales+alto+sax+pdf In PDF document text
    • http://gagetuno.irishephotography.net/uploads/1/3/1/6/131606727/rutosexoteni_sopirirodufus.pdfIn PDF document text
    • http://files.learnabouthmong.net/uploads/1/3/2/7/132740852/8879488.pdfIn PDF document text
    • http://files.nourishdiy.com/uploads/1/3/1/0/131070559/bomala.pdfIn PDF document text
    • http://files.jenniferwyatt.ca/uploads/1/3/0/9/130969474/tugeded.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/1/0440/1886/0190/files/97406473743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8531/4715/files/javafx_change_scene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6610/5759/files/58915459057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0206/1215/files/curso_de_adestramento_canino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7948/3048/files/mobalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/vasaludu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8015/5289/files/bukoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8077/7882/files/silevadereba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1347/9320/files/83385393381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.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 5

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_off000057ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57AE 5536 bytes
SHA-256: 94e4fa650be393af5502d2ee69aac8a66c775c5bc4910bf6e842107c235c139e
font_01_sfnt_off00006a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A75 9940 bytes
SHA-256: 67a58e21295046b51510fcb004b174278aa0b65a0eba68a45e8cd7389a474029

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