Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a05ca29ead09411…

MALICIOUS

PDF

42.4 KB Created: 2020-08-08 21:24:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7f3031fef0fc568ceb30829121b4fafb SHA-1: 0eff032950af60f84b1de591b51ae2a2f96aa3c3 SHA-256: 0a05ca29ead09411048957275e815f926d52998879ed95d3706ac2f6a423ab2f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a fake certificate lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=certificado+de+preparatoria+falso+pdf, which is likely used to redirect users to a phishing or malware-hosting site. The presence of numerous external PDF links also indicates a link farm strategy.

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=certificado+de+preparatoria+falso+pdf In PDF document text
    • http://files.xenyodame.com/uploads/1/3/1/4/131409009/viwopi.pdfIn PDF document text
    • http://files.phazetheory.com/uploads/1/3/1/4/131454109/70fb882e3.pdfIn PDF document text
    • http://files.attentivesafety.com/uploads/1/3/1/4/131408056/lamidilipukatuborasa.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/1/0433/8951/7978/files/augusta_jail_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lubogalevomiwubojaxijafax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1484/7655/files/geekvape_aegis_legend_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80023348890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/88340601725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5647/1959/files/97742364021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0457/5387/files/95299042891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/ashiq_2_songs_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/42608212879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/kasaxodif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4691/1643/files/python_bar_plot.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 5

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_off000064a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A9 5052 bytes
SHA-256: ac7e1330095a4163c7bb49d5d2a08f2c9580dbcc02455174884a8c8257be6475
font_01_sfnt_off000075e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E5 11228 bytes
SHA-256: 6149b530eb2b4cabe90d630c99150d9f2372a48a691c499e40b5eb0124e8d80d

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