Malicious PDF — malware analysis report

Static analysis result for SHA-256 459f3a75ea9959ba…

MALICIOUS

PDF

38.6 KB Created: 2020-07-28 11:21:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d914b6f804fa27f26764b275261aa5e SHA-1: de00cbca85420c1dfd0bac045ba28c233ba1f976 SHA-256: 459f3a75ea9959ba2faea3cd788c1305653bb6758f5e1e4ae36cb5fcad3b75c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, with one critical heuristic identifying a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, appears to contain text related to 'Besame mucho guitar sheet music free', suggesting a lure to disguise the malicious intent. The presence of a link farm further supports a campaign aimed at distributing malicious content or phishing.

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.com/pify?keyword=besame+mucho+guitar+sheet+music+free In PDF document text
    • http://files.yanichoralsurgery.com/uploads/1/3/1/4/131453121/paxapare.pdfIn PDF document text
    • http://files.mikearcherphotography.com/uploads/1/3/2/6/132696285/7605652.pdfIn PDF document text
    • http://files.artsquad.studio/uploads/1/3/0/8/130814774/fopogebapimi.pdfIn PDF document text
    • http://files.meganwestman.com/uploads/1/3/0/7/130739970/5004706.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/1/0430/3519/7602/files/2032941407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/midotikonujeriruzopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5957/5958/files/45984909199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5188/files/8046325780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8535/6449/files/69009172696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4398/7357/files/32352302098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/lixovarowuvaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/fugaruzogina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7496/8997/files/24226078300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8617/6665/files/rujugitamotesex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5545/6164/files/mifekolekaxatepugif.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5913 5088 bytes
SHA-256: 2c8f3a4737a51a275dd2dd51011abb234cbcebccb3899028b575d0351f2205a7
font_01_sfnt_off00006a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A68 10172 bytes
SHA-256: 8fab69e74fcdc171c5013447675e7ef5a17d8e59ec9061de2e8099d4b1d204b7

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