Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8fe731836e08a4a…

MALICIOUS

PDF

40.0 KB Created: 2020-08-21 00:13:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17590bd71d9477a0ecc2e8ca5610e664 SHA-1: 69f65374c102d17a3c651812cd4b33edee89532a SHA-256: b8fe731836e08a4a9188d769f1e33385b2ef1205bb8826f041f6c6b39c587b12
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. It also contains a PDF link farm heuristic, indicating a large number of external links, many of which are hosted on Shopify. The document body, though heavily corrupted, contains a URL that matches the redirector. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

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=binder+cover+templates+for+business In PDF document text
    • http://mojisiv.nataliemarie.org/uploads/1/3/1/4/131437502/kufixawaro_zopamisire.pdfIn PDF document text
    • http://files.ileanaespejel.com/uploads/1/3/0/7/130739542/dibinab_bumuzajebipu_lazitesuzuse.pdfIn PDF document text
    • http://kekow.alexbowlerevangelism.com/uploads/1/3/0/7/130739751/6019767.pdfIn PDF document text
    • http://besozip.leeannewright.com/uploads/1/3/1/6/131606490/769410.pdfIn PDF document text
    • http://easycoversandmore.com/topsproducts/easycoversIn 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/1/0431/5742/2229/files/ferirap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4607/5554/files/sadurizegejezisesulanifij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2274/3712/files/introduction_sample_for_internship_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0580/files/35798291931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3754/7929/files/temarabejarikabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4755/9067/files/jipudebujamomom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/75314681204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7225/7181/files/pojulojojadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fatexuxutul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9313/0390/files/berkshire_hathaway_business_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/83171973583.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_off000055ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55EE 5548 bytes
SHA-256: 9a7d143ee301c246b7d23b5ae75018c73c5aaed8688ed6198dcbbd34b6cab824
font_01_sfnt_off000068ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68AB 13560 bytes
SHA-256: 644a729a5cc0fbc0ad949b2d34e1d1849e961f34d89be0ec23cf45a01943e515

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