Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5e2efa17646c388…

MALICIOUS

PDF

36.7 KB Created: 2020-08-15 19:35:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a83f60653c1f5db2640620a0005f3c08 SHA-1: d6a1a0649050e50f8554b2fa3559daea2e2c35be SHA-256: a5e2efa17646c3885a527c961f59d626ab89a4d5f16da403c1e2348bf855de69
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one identified as a malicious redirector (ttraff.ru). The document body, though heavily obfuscated, contains this URL and other links pointing to potentially benign Shopify domains, suggesting a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful 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.ru/wb?keyword=gopro%20fusion%20manual%20update In PDF document text
    • http://rejaz.fromsistertosister.com/uploads/1/3/1/4/131407995/8306363.pdfIn PDF document text
    • http://files.omanroadshow.com/uploads/1/3/0/7/130776841/kasulojemuv.pdfIn PDF document text
    • http://files.sacredsecretskincare.org/uploads/1/3/0/7/130776366/9375199.pdfIn PDF document text
    • http://gopume.chimtechllc.com/uploads/1/3/2/7/132741144/vitipaxepabumega.pdfIn PDF document text
    • http://wisumeb.golfcaroutlet.com/uploads/1/3/0/8/130814297/jufixonox.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/1/0435/1570/7551/files/final_fantasy_tactics_gba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5149/1233/files/9872159303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6880/7586/files/steam_calorimetry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6081/2193/files/electronics_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9402/1030/files/koxominuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4627/2162/files/quantitative_analysis_for_management_10th_edition.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_off00005158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5158 5220 bytes
SHA-256: 83d06bdc74c100517835d4f88bc51c8bc4ba169f9c0e541cf3d4ad6c0392961b
font_01_sfnt_off00006301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6301 10340 bytes
SHA-256: 39fba9ed0df272ed576b1d94bc1a450360477e26d4e4eb5c3b415b7c137e716c

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