Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fe767ea398e0d7f…

MALICIOUS

PDF

32.5 KB Created: 2020-08-10 14:13:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 392102a18c6b361a13a5fa3d65a65e0a SHA-1: a3c35d02252ae9962e3d977a7c1555a3d80b4f11 SHA-256: 3fe767ea398e0d7f543edf4d937738c8dab0ac190e6014eae12215ba737a2b4d
194 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and heuristics indicating it contains a malicious redirector link and a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=catalogue+asco+joucomatic+pdf. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on Shopify and other domains, suggesting a SEO poisoning or redirection scheme. No scripts were extracted from this sample.

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=catalogue+asco+joucomatic+pdf In PDF document text
    • http://files.interporcspain.org/uploads/1/3/1/0/131070051/4331930.pdfIn PDF document text
    • http://files.metamorphose-collectifdarchitectes.com/uploads/1/3/0/7/130739564/3ebe0536bc588.pdfIn PDF document text
    • http://files.thevictorianpetal.com/uploads/1/3/2/6/132682585/rexiragiletar_zafufoze.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/1/0432/7155/3189/files/85434254174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9448/files/60406283757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6735/9900/files/71266247294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/zifizozox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/rubetoxijiwuwuver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/judegesuzopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2776/7206/files/divatoluguf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/duties_and_rights_of_an_auditor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6879/2732/files/99166495319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/97670467327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/fanedunubexuvesi.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_off00004216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4216 5360 bytes
SHA-256: 2e2dc7587fbd9174a367872c17218bf5c824953aea11bbaf3393ce3046ad3a6b
font_01_sfnt_off0000544e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x544E 9732 bytes
SHA-256: 8cdee4a37e7b60715172b7c9560fb84ce28a65957064437f54122638ceb118d5

Open this report in the interactive analyzer, or submit your own file for analysis.