Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a825c39a28e40d…

MALICIOUS

PDF

43.0 KB Created: 2020-07-25 05:13:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1cf421c4011f69a15c701e67cf36e61e SHA-1: 441b96fa0124740aaee2bef3a131c93228fe033d SHA-256: 80a825c39a28e40dd638693196113c82121a5d5e4a50a11d988a064b4fcc0baf
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, appears to contain keywords related to game downloads, suggesting a phishing lure for free software. The ML classifier strongly indicates maliciousness, and the presence of SEO-linked PDFs points to a campaign distributing malicious content.

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=asphalt+8+airborne++google+play In PDF document text
    • http://files.joraczewski.com/uploads/1/3/2/6/132695428/1063148.pdfIn PDF document text
    • http://files.deckermusicstudio.com/uploads/1/3/2/8/132814906/fb7e7038aa15.pdfIn PDF document text
    • http://files.carsfordummies.org/uploads/1/3/0/9/130969446/7081717.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/1/0434/6265/6152/files/luxanozifitopad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4350/1733/files/42294375894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8062/3015/files/73986010472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/suwuvilegovuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14490041284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/kavib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/rokemupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/zepubobibujunenesotop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7275/7668/files/44806363586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/solabupojazebexawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4143/8366/files/39408869726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8298/1281/files/74068138123.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 4

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_off00006822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6822 5296 bytes
SHA-256: eefbea7c57c89559b119c458e5eb1326671dd9e8965aaeb64c7de825ffdeaa8c
font_01_sfnt_off00007a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0D 10732 bytes
SHA-256: fa902771457466736c4d506a7d2b00f9a09ef301feba23661a01b475dd4f69bb

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