Malicious PDF — malware analysis report

Static analysis result for SHA-256 18b66b72e9ea0b45…

MALICIOUS

PDF

44.0 KB Created: 2020-08-10 03:40:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c71a53b5ac445ccf80608b6668279d75 SHA-1: 7546eafdc3d3f07ab3a9de4e37c2e3d36b70ca73 SHA-256: 18b66b72e9ea0b458749c8d806ac5e7f7ee86c4863f41a3ddb23771cbeeedc24
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to lure users. The primary redirector URL, https://ttraff.com/pify?keyword=the+art+of+understanding+yourself+pdf, is flagged as malicious. This suggests a phishing or scam campaign aiming to drive traffic to malicious infrastructure. No scripts were extracted, and the document body was heavily obfuscated.

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=the+art+of+understanding+yourself+pdf In PDF document text
    • http://files.mariangelaalhanati.com/uploads/1/3/1/3/131379552/gobakepixak.pdfIn PDF document text
    • http://files.centraldrivewayswarwick.co.uk/uploads/1/3/0/7/130740180/7590134.pdfIn PDF document text
    • http://files.wehaul2play.com/uploads/1/3/1/4/131452838/segopiw.pdfIn PDF document text
    • http://files.marimbaaustralia.com/uploads/1/3/0/7/130739517/pusifukifiropaxelu.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/1/0434/4388/0103/files/palubigomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/90547609085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6345/6423/files/convertidor_analgico_digital.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8168/5406/files/28201946114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7134/0698/files/wedadub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/zoneddatetime_to_date.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5900/3038/files/9099979453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9642/4096/files/21778542440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5392/2981/files/risiwefexujoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1257/0783/files/14312575336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/7980262946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/mamabowo.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 4

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_off00006b7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7A 5356 bytes
SHA-256: 9cd167a4bd08d0f041f5e67d5634a873c742577541c30c63ae2745c69bca9fa5
font_01_sfnt_off00007db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB2 10908 bytes
SHA-256: 9d8346e4d8283d09ba1a726e4bef7996b9f5e483529b851050b6d9aaa7b15988

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