Malicious PDF — malware analysis report

Static analysis result for SHA-256 09135f7cb886f30e…

MALICIOUS

PDF

34.8 KB Created: 2020-08-14 08:04:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12a0c2c9d763f05312889eacfccb04e2 SHA-1: 7e7a0129cd02ecdbc1935878902ab368a3110326 SHA-256: 09135f7cb886f30eabbe98353b777d1f1f72a5a9596773b7b3287c262db0663a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure for free downloads, likely a phishing or malware distribution scheme. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=desh+bhakti+free+ringtone In PDF document text
    • http://files.kegcreeksales.com/uploads/1/3/2/6/132683014/3714673.pdfIn PDF document text
    • http://files.saygoodbyeathome.us/uploads/1/3/2/8/132815015/9689502.pdfIn PDF document text
    • http://files.alpacapines.com/uploads/1/3/1/1/131164552/5123424.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/1/0434/2733/2252/files/ophelia_piano_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1160/9500/files/albert_speer_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8682/2053/files/63729933935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/netogerobomovoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8306/2695/files/34355850878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4373/2126/files/89832954241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8425/9231/files/codex_orks_warhammer_40k.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1945/files/nugatotolevarimunusaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3820/3290/files/nobuvuripa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/33117850920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37357510366.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 3

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_off0000499b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x499B 5200 bytes
SHA-256: 72337b139c60f044ed33bc6331f19c8d651af61683a82b71aaf20f68792db7f3
font_01_sfnt_off00005b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B4A 10260 bytes
SHA-256: 1007b91d3561e95e2f22cc551d23a78b76e7426b16d0ec349e984127bae31da5

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