Malicious PDF — malware analysis report

Static analysis result for SHA-256 853c7321c8a23b60…

MALICIOUS

PDF

46.8 KB Created: 2020-08-13 23:18:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2f789dca2359cac4ceb2df37ed33989 SHA-1: e602aed1ee373ec7fb95e47c45d3053cf23426f1 SHA-256: 853c7321c8a23b60bc3a9c79901ca4e2fd89cb23b6f9a86a30fc80f1415543d1
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL, 'https://ttraff.ru/pify?keyword=bollywood+hd+movies++websites+list', is identified as a malicious redirector and part of an SEO link farm. This suggests a phishing or scam attempt, likely aiming to direct users to malicious content or further phishing pages.

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=bollywood+hd+movies++websites+list In PDF document text
    • http://files.getoutgetsouth.co.za/uploads/1/3/0/7/130776526/bejijiz.pdfIn PDF document text
    • http://gebofaxem.luxejewelers.net/uploads/1/3/1/3/131379510/1472308.pdfIn PDF document text
    • http://files.healthyfoundations.co/uploads/1/3/2/6/132681296/sikofifezavexe-gejox-xipizaluret-zasafujada.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/1/0435/0817/0918/files/82406646686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/nasoviporegimopidolibef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/excel_data_analysis_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/jifaxileviliwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/88875069195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6482/6773/files/sovubumuvexibafige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/8884130665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6899/7286/files/atrrs_course_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5339/1765/files/livro_administrao_e_planejamento_estratgico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0876/1764/files/dagarebidobonijixaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7596/6878/files/52200564085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35117459625.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_off00007064.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7064 5200 bytes
SHA-256: 4caea407fe95fbea4a18728a4a23664bbd0c721e8fdf31f5a378c489c0eedbbf
font_01_sfnt_off00008214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8214 14080 bytes
SHA-256: 34090b933f8789735d48680191e8588d48c06256b09aeb430c4f42b1e6405563

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