Malicious PDF — malware analysis report

Static analysis result for SHA-256 852eeea6a145d54b…

MALICIOUS

PDF

35.9 KB Created: 2020-08-20 05:21:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f3c09efac15e6d3c6e7a330854823d8 SHA-1: c53f95dffa3bd76cfb6ebf2715bfab2586624e25 SHA-256: 852eeea6a145d54ba481117523becfabfa370262954376dde8453ccfc4d6d399
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting PDF files, suggesting a link farm or SEO manipulation tactic. One prominent link, 'https://ttraff.com/pify?keyword=how+have+you+been+doing+lately+answer', is identified as a malicious redirector. This indicates an attempt to lure users to a malicious site, likely for phishing or malware distribution, disguised as a free download. No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly suggest a phishing or social engineering attack.

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=how+have+you+been+doing+lately+answer In PDF document text
    • http://files.hr-conference.org/uploads/1/3/0/9/130969656/a322e.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/1/0431/7085/7124/files/pimowuraguwubidixot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0141/3785/files/bureluxonudunodifonewuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1929/5131/files/kosawapirex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6353/3977/files/29254200238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5874/8822/files/zevedolowofuwovuleviva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/babatesepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0485/3406/files/ashrae_handbook_fundamentals_1997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/54877133702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9742/4026/files/68314657174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6619/6122/files/accountancy_class_12_ncert_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/gaxafibogir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7542/0579/files/70913938894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/39390632921.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 3

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_off00004e1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1D 5440 bytes
SHA-256: 376a68c37bfbdb6588305efe1d9c6b2e35f1c21ec5ef8285700b58e09246bbb9
font_01_sfnt_off000060a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A7 9980 bytes
SHA-256: ee53407c230f152d67bd66f90301726d7a295424197523e420a57558d73e231c

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