Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eac5a4c096dc29b…

MALICIOUS

PDF

67.7 KB Created: 2020-08-03 16:33:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba130281ed3a2c0bcab379fe1b6e2721 SHA-1: 4a3f3f68a082e35d66a47c88286bae0214c09415 SHA-256: 7eac5a4c096dc29b8aef7c9d8fb6f72a06035fa36f41e991f712b0c1e64b0abe
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'https://ttraff.ru/pify?keyword=browser+open+pdf+in+new+window'. This redirector is part of a link farm designed to host numerous PDFs, suggesting a phishing or malware distribution campaign. The ML classifier also strongly indicated maliciousness.

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=browser+open+pdf+in+new+window In PDF document text
    • http://files.bethlehemjc.org/uploads/1/3/0/9/130968942/walidu_rorepuki.pdfIn PDF document text
    • http://wumakesof.vitalvittlesfoodtrends.com/uploads/1/3/1/8/131856919/ac8443.pdfIn PDF document text
    • http://files.lamatstudio.com/uploads/1/3/1/3/131379718/123f492.pdfIn PDF document text
    • http://files.tootleconstruction.com/uploads/1/3/1/4/131408209/5cb15ca60fe.pdfIn PDF document text
    • http://files.letspaintwithauntdeb.com/uploads/1/3/1/1/131164039/3912391.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/1/0428/3272/4124/files/74884355951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8506/1541/files/88908835314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7251/0362/files/23066066654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5982/2243/files/virenelifelumotijelen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/xizavebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6081/3208/files/25734594081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1258/5634/files/kibafisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/tupukagipurisujudiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4855/9004/files/wirebiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/ruzut.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_off0000c18d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC18D 4936 bytes
SHA-256: b71ec957ccb5830fec79e9fd277da2f072b46eac781386cecfe4fd6b77eedce5
font_01_sfnt_off0000d27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27F 15144 bytes
SHA-256: 6bf171fe2209b971498c8b023f611252a612a5e86a4d9b66e44d0ca96543ff58

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