Malicious PDF — malware analysis report

Static analysis result for SHA-256 9642b0c1553021ad…

MALICIOUS

PDF

42.0 KB Created: 2020-08-13 22:23:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34ce814f05340a67160a857a09480826 SHA-1: 675f374bdb84f55f81af503ea79c0ad5f9f5fa67 SHA-256: 9642b0c1553021ade6cbcfd1fda2b46debd3bc6dcb1b4edec0b78089b4370cf5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lead users to malicious content. The document body, though heavily obfuscated, also contains this URL, suggesting an intent to deceive the user into clicking it. The presence of numerous other links, many pointing to Shopify domains, indicates a link farm strategy to improve search engine visibility for 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.ru/pify?keyword=free+danielson+lesson+plan+template In PDF document text
    • http://files.outofthedarknessgriefsupport.com/uploads/1/3/0/9/130968981/deteliwu.pdfIn PDF document text
    • http://files.acomputerconsultant.com/uploads/1/3/0/9/130969511/3630881.pdfIn PDF document text
    • http://files.bouncing2wellness.com/uploads/1/3/1/4/131438019/2847500.pdfIn PDF document text
    • http://files.quillylife.com/uploads/1/3/1/0/131069819/suwad.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/1/0431/5725/8395/files/87970379424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2348/2535/files/bruno_mars_count_on_me_ukulele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2862/7107/files/bayreuther_festspiele_2020_spielplan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/cbse_class_9_english_literature_reader_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/7092897395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0985/1048/files/mugazonikigepudivuwimevex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/96675787745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3123/1655/files/kitofisopotij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2308/9307/files/kuhnhausen_1911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8108/0725/files/85580436161.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_off00005d29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D29 5060 bytes
SHA-256: 32f2ea4c8393950d57886fdc7034f7df5b8b1a754da8b2f8e82affceb13c4973
font_01_sfnt_off00006e42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E42 14480 bytes
SHA-256: eebcfc9185c9f9a247d2d3f4506983c1cc109f93243e3b35d9a0d038b7bbfa60

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