Malicious PDF — malware analysis report

Static analysis result for SHA-256 53c500f887ac9a7e…

MALICIOUS

PDF

44.0 KB Created: 2020-08-08 09:12:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e7a88788647145806d10c17391c077f SHA-1: 4e1fd947f46eeb82bec4c6b704927ab6c95352bf SHA-256: 53c500f887ac9a7e4b013b6ce7bd4a8c28faa9c52504be2b261e0e78296cbbf9
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to benign Shopify domains, but one critical link redirects to known malicious infrastructure at 'ttraff.ru'. This suggests the document is designed to lure victims into clicking malicious links under the guise of a form. The ML classifier strongly supports the malicious nature of this PDF.

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=caste+validity+online+form+pdf In PDF document text
    • http://files.joepeatfield.com/uploads/1/3/1/4/131482826/8402217.pdfIn PDF document text
    • http://files.cambridgeartfair.com/uploads/1/3/1/0/131070313/1a54fd3c5.pdfIn PDF document text
    • http://files.goreyelectrical.com/uploads/1/3/1/6/131637271/matalipugu.pdfIn PDF document text
    • http://files.matthew-wade.com/uploads/1/3/0/9/130969573/kejugivoso_diroxuwa_wufepokokus.pdfIn PDF document text
    • http://files.arkofva.org/uploads/1/3/2/6/132680796/ace7a398ae8df.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/1/0436/9865/1288/files/bozifivefam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8637/9160/files/zififanapimabogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7185/5002/files/ligopokaliw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/turesiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/97444073880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/2000/files/99141225917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5488/1175/files/senior_staff_accountant_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3166/5562/files/dopawaselefekisulagike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15518423203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5185/9611/files/59974843948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/bukorisozot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4585/5137/files/ellipse_algorithm_in_computer_graphics.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_off00006e97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E97 5252 bytes
SHA-256: 415bd78562ee6a43e2c94a1cec09463c90ce61d85e081a89e6238001fc88d21c
font_01_sfnt_off0000806a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x806A 10084 bytes
SHA-256: 49b9a0ab66ceb519052971e7a06aa3a32db5e86b1917b7d66fc067564c8ce95c

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