Malicious PDF — malware analysis report

Static analysis result for SHA-256 f30fd2446bea9351…

MALICIOUS

PDF

42.3 KB Created: 2020-08-06 05:34:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61ce64fb2fe227e15e5fe44f5523cf50 SHA-1: 39c2c1a7caa51b84b855ebea519b27c8900b5986 SHA-256: f30fd2446bea935174f3f4d7272b82dd5a6643b0637f7a6fee603bbc6da8b717
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, many of which point to potentially malicious redirectors. The primary malicious link identified is https://ttraff.cc/pify?keyword=applied+maths+1+book+pdf, which is likely used to redirect users to a malicious site. The document body contains garbled text but includes the malicious URL and numerous benign-looking PDF links, suggesting a link farm or SEO poisoning tactic to disguise the malicious intent. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection 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=applied+maths+1+book+pdf In PDF document text
    • http://gigawe.weaversofeternity.com/uploads/1/3/1/6/131637016/5167637.pdfIn PDF document text
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdfIn PDF document text
    • http://files.thechangemanagementnetwork.com/uploads/1/3/1/4/131453018/2556142.pdfIn PDF document text
    • http://files.bbluntsheabutter.shop/uploads/1/3/1/3/131383018/bajof.pdfIn PDF document text
    • http://files.wellingtongraphics.net/uploads/1/3/1/3/131382217/xegamerolakas.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/1/0432/3803/1518/files/smith_and_wesson_645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96704933611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0011/1009/files/28189076057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1184/9892/files/the_art_of_paragliding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5679/0695/files/ford_f350_parts_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2315/4850/files/perfect_binary_tree.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/fufokakagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/zomejotazusafisugubopor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7367/3118/files/36268657313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6495/8879/files/84292738004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7331/5740/files/guilty_gear_ost.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_off000067b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B7 5428 bytes
SHA-256: 55660fcbf11d813a3bf8fc0247647338607d77ffd095f095dc18642bd485fdd7
font_01_sfnt_off00007a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A04 10136 bytes
SHA-256: 1377d5f02435f5e86573c673255738ca7cc1ab1b8c1e466c9a6dcb5045789a5c

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