Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b620d6911553dcb…

MALICIOUS

PDF

42.3 KB Created: 2020-08-07 15:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17b0fe65348a7b488e9ee0b3ad3a68ee SHA-1: d26bc43c672357e4e609b5ef6c029c7527b6d5a6 SHA-256: 7b620d6911553dcb2b05491318d228c9c0bc13648f2fd2e87025adcda63e7bc9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious URL, identified as a redirector for SEO-based phishing. The document body, though obfuscated, contains references to the malicious URL and other potentially benign Shopify links, suggesting a lure to download further malicious content. The ML classifier strongly indicated maliciousness, supporting the assessment of a phishing or content-luring attack.

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.com/pify?keyword=definicion+de+actitudes+segun+autores+pdf In PDF document text
    • http://xewopod.carnivalincovington.com/uploads/1/3/0/9/130969723/72337461a006e.pdfIn PDF document text
    • http://files.affinity-artwork.com/uploads/1/3/1/8/131856333/2db9a57eab5.pdfIn PDF document text
    • http://files.enaakshikotwal.com/uploads/1/3/1/1/131164063/1064652.pdfIn PDF document text
    • http://files.areahearingcenter.com/uploads/1/3/1/3/131378968/1010389.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/1/0433/0160/1444/files/one_drive_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7261/7637/files/pibagakizizudefawukogek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1890/0888/files/bsc_1st_year_math_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4691/0624/files/ripowelokegoredifetaliju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5149/files/gonudajoxazisevode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6784/1443/files/zebifusogafubesaloworivil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0323/8811/files/xudagekewepofibun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/wakipuvasox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9697/files/togoxanikewunizibukos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9942/8766/files/florida_flair_vendor_payments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/bufilapawekopebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/alfie_kohn_classroom_management.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
🗂 Part of campaign: sprinttriathlonchestnutforks.com 5 samples

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_off00006584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6584 5292 bytes
SHA-256: a4de0be3e4787507b0d66e2c7b3c12a379555445b31147b70de9a7becea3cf0c
font_01_sfnt_off0000779e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x779E 10636 bytes
SHA-256: cf61d2e924c630d159788c2294e63dc2ff7e7fc424a87f1b6c2e79ff4db984ee

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