Malicious PDF — malware analysis report

Static analysis result for SHA-256 f793b16a43b727e2…

MALICIOUS

PDF

59.8 KB Created: 2020-08-18 19:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b12da5db6a693ba2c3e676645c0418c1 SHA-1: 54ac59a7c07cac48e9dfe4fe47b361948d6e76ef SHA-256: f793b16a43b727e27bbcd0096ff43df403d759bacc2a485cdd63efaa1ce47e49
194 Risk Score

Malware Insights

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

The PDF contains embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Samsung note 10 hd wallpaper' and a URL that appears to be part of a link farm designed to attract search engine traffic. This suggests a phishing or malware distribution lure. No scripts were extracted from this sample.

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=samsung+note+10+hd+wallpaper In PDF document text
    • http://files.precisionartstudio.com/uploads/1/3/2/3/132302870/roxokonopasuj.pdfIn PDF document text
    • http://files.dogswagco.com/uploads/1/3/0/7/130775607/3213371.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/1/0430/5456/3477/files/77211447560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1814/1347/files/kimenufenatewisil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9689/1807/files/xorekukoluwusapixulinitip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5637/3659/files/rejorilisetod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/73895914011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5563/5880/files/76516963053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/roman_catholic_telugu_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0938/4345/files/54190035449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/35211758325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6908/6623/files/tujivani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5014/5704/files/jamadefodenazu.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 2

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_off0000aa9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA9F 5764 bytes
SHA-256: 7595075e3a9685d4243ea6bc3d5d9071273e79bdc3b149159184bfaf3bab81cd
font_01_sfnt_off0000be20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE20 10620 bytes
SHA-256: 157daf1c7c05733851bc2bf9edbd5fe9aa2f9ca3c90adf4f80b9f3cf406993b7

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