Malicious PDF — malware analysis report

Static analysis result for SHA-256 497459b395e511b9…

MALICIOUS

PDF

36.1 KB Created: 2020-08-10 11:55:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54da6f22d6533e8b379421dc8f4cc2f0 SHA-1: 31dde21204ad98e12636c58afe5dee13596a3418 SHA-256: 497459b395e511b99dbc238477bb313f53e78f261316a0dde6895890a92d7c8c
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used in link farms to artificially inflate search engine rankings or to redirect users to malicious sites. One of the primary links, 'https://ttraff.ru/pify?keyword=fundamentals+of+solid+state+physics+christman+pdf', is flagged as a malicious redirector. While many other links point to benign Shopify domains, the presence of the malicious redirector and the sheer volume of links suggest a malicious intent to lure 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/pify?keyword=fundamentals+of+solid+state+physics+christman+pdf In PDF document text
    • http://files.artworksvass.com/uploads/1/3/1/0/131070604/wifarunudegonazowuxi.pdfIn PDF document text
    • http://files.caffelina.com/uploads/1/3/0/8/130874676/8565648.pdfIn PDF document text
    • http://files.littleriverfarmstore.com/uploads/1/3/0/7/130738569/xogibapiwu_metijopagopo_mepimugebu_vixesesujeku.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/1/0430/1524/1891/files/general_sociology_with_anthropology_and_family_planning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2857609843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6971/9196/files/54675802342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2143/4023/files/bavexurifumopinakodudajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0406/6967/files/63211077632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/vojofujoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6085/3912/files/57789476183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4286/4289/files/papijalolowutawawivom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8962/9079/files/accounting_basics_tutorial_point.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/27320364300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/36301078153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1440/6823/files/jaxezan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2251/5351/files/cestina_express_1.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_off00004df0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF0 5452 bytes
SHA-256: 80740ee007f5c8e02d5ce9a86d781aafb51267cf967d1f73afdf7afb5c2186c3
font_01_sfnt_off0000605f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605F 10172 bytes
SHA-256: 7f5a138ef33aa213cdfd92d5adc192497a84fd89cedd8252352c4775af49961b

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