Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed43257ae98d920…

MALICIOUS

PDF

40.2 KB Created: 2020-08-07 22:50:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04e713c32ae44a47505a78001258b847 SHA-1: 9e6b9947b6b58726851889c8f1cd47609be6200c SHA-256: 1ed43257ae98d92079efbb3d387c04764163be92266e3f95c24dd32d5319e023
202 Risk Score

Malware Insights

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

The PDF contains a deceptive call-to-action disguised as a download link for technical content. This link, 'https://ttraff.com/pify?keyword=audio+power+amplifier+design+pdf+download', redirects to malicious infrastructure, indicating a phishing or malware distribution attempt. The PDF also contains a large number of links to other PDFs hosted on Shopify, likely for SEO manipulation to improve search engine ranking for malicious content.

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.com/pify?keyword=audio+power+amplifier+design+pdf+download In PDF document text
    • http://files.brandywinefarmllc.com/uploads/1/3/0/7/130740033/biluxe-turudul-wovuked-gezarivedegodib.pdfIn PDF document text
    • http://files.lifechurchoftitusville.com/uploads/1/3/1/4/131406344/duturapezefikino.pdfIn PDF document text
    • http://dukowa.cancercantkilllove.com/uploads/1/3/1/4/131406286/gijasu-bavisipekamuz-winagavamigujev.pdfIn PDF document text
    • http://files.vvphotography.ca/uploads/1/3/1/4/131406841/d931d7212ed7fb8.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/1/0432/8436/5468/files/rumusasapukiruwupedore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/anticancer_activity_of_lemon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/43736269803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5978/9472/files/katozobazatusakikit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8048/9891/files/19537757940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4879/6309/files/82977011085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0658/3203/files/35116075092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9567/8357/files/bajexodiwiribemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40035930655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2560/4513/files/nilosivilobokov.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_off00006061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6061 5444 bytes
SHA-256: e9472b1350665893ee49fea8fc06a541afba0ce79b0c6a2b00d59c0ed12191ae
font_01_sfnt_off000072de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72DE 9768 bytes
SHA-256: 6fe224dc1cd79ac63039bacafb325b4d13e99892cc29da4ab3cb4de9b2e12301

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