Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e073945ecd377d5…

MALICIOUS

PDF

46.2 KB Created: 2020-08-10 06:28:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0223f3d4a3165a6fbaf291ffbb9b3ba1 SHA-1: 118aaedc5123d252189d486926162eb73a2b0506 SHA-256: 3e073945ecd377d5ffb953f96759b2c0a74041f05ac997dddd90183dc3e95e92
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised with a keyword related to crafting. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=manualidades+en+madera+paso+a+paso+pdf In PDF document text
    • http://files.achievect.com/uploads/1/3/1/1/131163780/vorakubusi-bafudejopu.pdfIn PDF document text
    • http://fubejemom.henfieldthenandnow.net/uploads/1/3/0/8/130813528/5934134.pdfIn PDF document text
    • http://files.ibunson.com/uploads/1/3/2/6/132682293/8590363.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/1/0427/5997/9174/files/xoxujumezujizete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2825/6680/files/nujomesuwolukotutarininaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7001/4111/files/kigaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/72327890336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/power_system_analysis_stevenson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6223/0181/files/mibabubive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/mabupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/bosupiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0519/3885/files/pneumatic_tools_equipments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9529/files/beginning_with_disability_a_primer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6636/6869/files/update_minecraft_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.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 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_off000075c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C7 5192 bytes
SHA-256: 4ffa9fafd3fd042414d41b7b45139082e6f4f234f69362fa9b0628004e56210f
font_01_sfnt_off00008762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8762 10828 bytes
SHA-256: 5ce00fc0fefc430d63190a279391bf2765ef17d3d9d5e68a8673642a9d0283a3

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