Malicious PDF — malware analysis report

Static analysis result for SHA-256 9073b27a20060330…

MALICIOUS

PDF

53.6 KB Created: 2020-08-04 14:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 530a7920cda48ef9c16d81f2ca0564bf SHA-1: 29a83bbf9d2360c3bc55504d2fa790fea684b9a3 SHA-256: 9073b27a20060330c5df5d09c9c5db4ac08b64ec5790056edfc39f680ed3d80b
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.ru). This indicates a link farm designed to obscure the ultimate destination and potentially distribute malware or conduct phishing. The primary malicious URL identified is https://ttraff.ru/pify?keyword=determination+of+acidity+of+water+sample+by+titration+pdf. The document body itself is largely unreadable binary data, but the presence of the malicious redirector is sufficient evidence of malicious intent.

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=determination+of+acidity+of+water+sample+by+titration+pdf In PDF document text
    • http://files.denvermobilehair.com/uploads/1/3/1/4/131409526/4635715.pdfIn PDF document text
    • http://files.giantpawsgianthearts.com/uploads/1/3/1/4/131437123/6459514.pdfIn PDF document text
    • http://files.samgolong.com/uploads/1/3/1/4/131437982/1125907.pdfIn PDF document text
    • http://fameforo.signguides.org/uploads/1/3/1/4/131407901/f2c81.pdfIn PDF document text
    • http://files.summerslittlebakery.com/uploads/1/3/1/3/131379999/704a23ff53.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/1/0433/6559/7342/files/fusionner_plusieurs_en_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/bibafoladarodiluwagekamen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/42229557137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9339/2536/files/11586177667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8102/3132/files/39030484844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8910/0951/files/76054850202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/39224062563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7744/3483/files/zoxaresavogex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/38307522934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/99044399208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/26137480803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2178/6521/files/4627386377.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 6

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_off00008c0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0F 5636 bytes
SHA-256: ffbd96ab74107a6c7b5f8386ebc6af11bddb2d035fd6b240a367bd6caae59eed
font_01_sfnt_off00009f3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F3C 12996 bytes
SHA-256: 6ddd4cd037a2e494031c2578a2b23882ed835e9d179e07cba0b7358ee17afd31

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