Malicious PDF — malware analysis report

Static analysis result for SHA-256 70fbd7f77a20ef90…

MALICIOUS

PDF

36.2 KB Created: 2020-08-17 16:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3cfc0e056104b8892d27eb78eca1003 SHA-1: 758c9523ed8f88549562534035b9771a3fc0a4d4 SHA-256: 70fbd7f77a20ef9022f2eb077becc82fbda3fef4d3d05602c6629151871f40df
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 at 'https://ttraff.com/pify?keyword=cinema+4d+r16+trial'. This URL is presented as a lure for downloading 'cinema 4d r16 trial', suggesting a phishing or malware distribution attempt. The document body also contains this URL and numerous other links to PDFs hosted on Shopify, likely part of an SEO link farm to improve search engine ranking for malicious content.

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.com/pify?keyword=cinema+4d+r16+trial In PDF document text
    • http://files.womencliniccentre.com/uploads/1/3/0/7/130739204/bibebekomizojajap.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/1/0434/8605/2504/files/6792376952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/the_cultural_landscape_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4885/3926/files/63647528782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/nelevav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/topological_sort_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/53342998502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9770/8957/files/drake_and_josh_seasons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/alif_lam_mim_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5117/1478/files/ganuzamitelumabuwalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/31853191965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/nirum.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 2

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_off00004e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E13 4992 bytes
SHA-256: 30687519f935d826f8be8312fbe0d98148f4a5ae10a5f2012dd273cf71bea77d
font_01_sfnt_off00005ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF3 11172 bytes
SHA-256: 3f5663817fa0ca2eb18aa048709bd17a9749c82c29efdbdf83a1ace85d69b5c6

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