Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff1d577e0793840c…

MALICIOUS

PDF

43.9 KB Created: 2020-08-19 16:42:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01c4a25b5c4b4d19c0abd472c82720e8 SHA-1: d2fbe26297ab6b2a13a9b2075ac81cbab993416d SHA-256: ff1d577e0793840c39957ba23b689c3c1edaf293a02327fa9991a479f1d60cf2
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=difference+between+formative+assessment+and+summative'. Another critical heuristic identified a PDF link farm, with 'https://cdn.shopify.com/s/files/1/0431/1895/2612/files/mastering_the_art_of_french_cooking_en_espaol_gratis.pdf' being the first listed. The document body, though partially corrupted, contains text related to educational assessment and the URL, suggesting a lure to a malicious site.

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=difference+between+formative+assessment+and+summative In PDF document text
    • http://zoliti.ameliaandcompany.com/uploads/1/3/0/8/130814017/fuvopax-witeru.pdfIn PDF document text
    • http://files.northcountrysuggieshop.com/uploads/1/3/0/8/130814529/e381d5fe995028.pdfIn PDF document text
    • http://files.imperiacateringjakarta.com/uploads/1/3/1/0/131070792/8522147.pdfIn PDF document text
    • http://files.ctcornerstone.com/uploads/1/3/2/6/132681836/xaradar.pdfIn PDF document text
    • http://files.juliaopawska.com/uploads/1/3/1/3/131380870/kamusoze.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/1/0431/1895/2612/files/mastering_the_art_of_french_cooking_en_espaol_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/96423392454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7982/files/53032655958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6635/2025/files/jvc_video_cassette_recorder_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8330/0005/files/54305789188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/91730448205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2158/5831/files/2020_calendar_philippines_with_holidays_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/25919395892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3731/0626/files/15750395170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8956/6623/files/44602935483.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_off00006d4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4C 5428 bytes
SHA-256: 1e059d014b9ea21b8a17024881c2a28853b10bfb153ee768ee9ee9b146c608a5
font_01_sfnt_off00007fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB8 9996 bytes
SHA-256: d4ba796b796b36f99b027bd73648270597363e4b32a92868fd4040082f884b52

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