Malicious PDF — malware analysis report

Static analysis result for SHA-256 316135dd99e9c1e9…

MALICIOUS

PDF

43.5 KB Created: 2020-08-04 06:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0eee78a2c9ed2f52ee80457205803dd9 SHA-1: 198cbd7c1ec161c54300da40ddaf13bba0661a6c SHA-256: 316135dd99e9c1e99fdd38923558d4d065d9708fa066813ee362afbfb3fdcbf9
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=tablatura+capricho+arabe+pdf', indicating a likely phishing or redirection attempt. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=tablatura+capricho+arabe+pdf In PDF document text
    • http://files.justingalushaphotography.com/uploads/1/3/2/7/132740329/jadubisejuneg_jonepirepapu.pdfIn PDF document text
    • http://files.fieldstonefarmllamas.com/uploads/1/3/0/8/130814032/7821639.pdfIn PDF document text
    • http://files.marcschuebellaw.de/uploads/1/3/1/4/131438282/vibubef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3174/0066/files/53955076250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/komaxevonozopodexonoraj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/98490066051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3983/3767/files/rilizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6001/8852/files/resepijum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5721/7693/files/44299939668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0916/9815/files/kisegefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15843942414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4530/files/62901879597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6086/2874/files/bebalovab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2564/5211/files/37523118968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8937/1040/files/96881376624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/57965207159.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000607f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607F 4928 bytes
SHA-256: 8b5275bbd5b0939468a45881ccba64af83de4ea0b87f2d0ba1d9c1eb98a31b9f
font_01_sfnt_off00007148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7148 10316 bytes
SHA-256: c33b4ef2f4488a3657a12c6302b020a7e75402f2621b7b98c9c971c0937566a4
font_02_sfnt_off000092af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92AF 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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