Malicious PDF — malware analysis report

Static analysis result for SHA-256 824924f186adb53d…

MALICIOUS

PDF

42.5 KB Created: 2020-08-21 00:32:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a446f3021e6317a065a2c720af94adfe SHA-1: f4606c4646eb8f6dc3ee7fa738a005665396fc81 SHA-256: 824924f186adb53de19fce8d3e0548850e378eef21a7af9d76aeb285475aeec7
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. One prominent link redirects through `ttraff.cc`, a known malicious redirector, to a lure for "Dragon Ball Z games online free". This indicates a phishing or scam attempt designed to lead users to potentially harmful content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=dragon+ball+z+games+online+free In PDF document text
    • http://files.purefreedomwellness.com/uploads/1/3/1/8/131871814/5284117.pdfIn PDF document text
    • http://files.baconng.org/uploads/1/3/1/8/131856065/21902312.pdfIn PDF document text
    • http://files.melanieparkerphotography.com/uploads/1/3/2/8/132815367/9886208.pdfIn PDF document text
    • http://files.carolynburkestl.com/uploads/1/3/0/8/130814342/wewasuruxegate_lufuza_tozijizavesifu_sofogaxeb.pdfIn PDF document text
    • http://files.yogawithcharli.com/uploads/1/3/0/8/130873851/gopibagisezun.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/1/0437/8296/3361/files/nulazupazibase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5466/9729/files/38271179586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/fexipujugeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3464/8482/files/fivem_f_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1348/9318/files/hellboy_comic_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5205/7244/files/2008_jeep_wrangler_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/axis_bank_balance_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/biopsicologia_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3975/9259/files/zobenaresusurusuwitag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0441/9478/files/business_intelligence_carlo_vercellis_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4295/4661/files/caldera_forms_save_to_database.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68DF 5276 bytes
SHA-256: 51d4d3be36a4608b8464b8e73f436140806ed5b9daba0bb0d8a9151f2fa8ea1a
font_01_sfnt_off00007abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABF 10156 bytes
SHA-256: 22f1e811a71180401160dea88696c3e8030f9db737fff67e49a233ee599e10d8