Malicious PDF — malware analysis report

Static analysis result for SHA-256 15d5da6f9a96a52c…

MALICIOUS

PDF

46.8 KB Created: 2020-08-10 10:51:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fcfd5ba12ddcf40e065eda1c7ced8d8 SHA-1: f353ad338d2e30f1e43c88fd17e0623cf9a50b07 SHA-256: 15d5da6f9a96a52c2896fb17f0df7dce54fc8012cfef1fb635484fd7fad077a0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious domain, ttraff.com, which is identified as a redirector for SEO link farms. The document body, though heavily obfuscated, contains text related to '100 bodyweight exercises pdf' and URLs pointing to Shopify, likely as part of a phishing or scam campaign. The ML classifier 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.com/pify?keyword=100+bodyweight+exercises+pdf In PDF document text
    • http://files.fincast.com.au/uploads/1/3/2/8/132815872/tujawil_sopanesubudak_xapuxolavemoziz_kuzebenunimumi.pdfIn PDF document text
    • http://files.jointheteam.saintleoresidencelife.com/uploads/1/3/0/7/130740521/kabezenuki.pdfIn PDF document text
    • http://files.conesintheharbor.com/uploads/1/3/1/4/131406527/0284054491d2c5a.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/1/0433/9430/2117/files/61480210365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4365/9677/files/addictions_a_banquet_in_the_grave_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6614/6472/files/88314654882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45560821546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3123/1644/files/applications_of_gold_nanoparticles_in_cancer_nanotechnology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6187/7663/files/stopping_by_woods_on_a_snowy_evening_appreciation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4845/9675/files/tanijavurodonarumuniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/wujiverojuxobazadati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0737/7561/files/juzat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9401/6157/files/65992568543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/35206639428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/belajar_hukum_tajwid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/54059984895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6113/3990/files/58075280543.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_off00007892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7892 5676 bytes
SHA-256: 54a6102c311523fff5ada84c1bb8094b0a8b67ee329fe1fb89c108002c1cb3ea
font_01_sfnt_off00008c01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C01 10096 bytes
SHA-256: 5d6e3f562b11605660ba443f7cdc4a4df6c779649c31710dbcc492425a363e5f

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