Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a9815eda122b8bf…

MALICIOUS

PDF

40.3 KB Created: 2020-08-23 17:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9dbba1c5d38e8967e853aa47f3dd772 SHA-1: e4bb20d2626205a4f3f50db5579561f157590d65 SHA-256: 8a9815eda122b8bf977f3eb7504788186adaffd8b3ed04b44431fc226bfe49d4
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm pointing to a known malicious redirector. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=all+beautiful+photos'. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a lure to external content. The ML classifier strongly flagged this PDF as malicious.

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.ru/pify?keyword=all+beautiful+photos In PDF document text
    • http://files.electro-haptics.com/uploads/1/3/2/8/132814969/2708551.pdfIn PDF document text
    • http://files.georgewhittellalumniassociation.com/uploads/1/3/0/9/130969992/logibesi.pdfIn PDF document text
    • http://files.chaptersofjess.com/uploads/1/3/1/8/131856352/tapagodok-nakojakavijek.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/1/0440/5755/9190/files/virepiduvone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/44421255013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7264/2454/files/pulse_width_modulation_for_power_electronic_converters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6041/0006/files/foborinaxogaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5962/6655/files/wirizume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/dobexukif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/what_is_reactivity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6119/files/aristotle_metaphysics_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/corrugated_cardboard_sheets_durban.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5381/7762/files/71478202664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0255/1716/files/71213580636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1419/2284/files/20402787332.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 1

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_off00005fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBC 5020 bytes
SHA-256: e579aa37dcbf6bd88808da2946d3ac818298a511fd7b6454b7819410f1362fd0
font_01_sfnt_off000070ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70CA 10428 bytes
SHA-256: 8ab5636edcf3de5a141e9f1ae412ab72ab1b021671ddb61c203127b5978d0839

Open this report in the interactive analyzer, or submit your own file for analysis.