Malicious PDF — malware analysis report

Static analysis result for SHA-256 b34f0efc8d800692…

MALICIOUS

PDF

40.4 KB Created: 2020-08-03 18:55:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ad1a327bc85ea79b08f809f08a9f74b SHA-1: f11beeda7efcca9e897498a5a5e8f7e485baa83e SHA-256: b34f0efc8d800692f153709fc0872b48e9d4f83c4981017d92b6ced42bc92223
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector, which is a strong indicator of malicious intent. The document body, though heavily obfuscated, contains the text "Bass guitar notes on staff pdf" and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous other PDF links further supports the classification as a link farm, likely intended to drive traffic to malicious sites.

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=bass+guitar+notes+on+staff+pdf In PDF document text
    • http://files.victorianhighcountryphotography.com/uploads/1/3/2/3/132302816/vidazewak.pdfIn PDF document text
    • http://files.diamondpeaksalt.com/uploads/1/3/0/7/130776401/6509445.pdfIn PDF document text
    • http://files.wendyleedyart.com/uploads/1/3/1/3/131398533/b295e94c.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/1/0428/9835/8432/files/tefukina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/prescott_microbiology_9th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0436/1884/files/62566964283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7257/0012/files/svg_to_png.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6139/3046/files/vevuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/44987719893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9423/5553/files/nukusovuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9899/5878/files/kovosolut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7573/1616/files/how_to_play_audio_through_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8402105605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6105/9482/files/womaxigumolowumegowuja.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_off0000608a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608A 5224 bytes
SHA-256: 0835b9512c522d5b8f948a818b704f67ad9e7101e7d7cdafc6ba991cd8999a6d
font_01_sfnt_off00007263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7263 10120 bytes
SHA-256: 1889674143837cdccafd6df177aadcf583aeb09d7ab197a606dbad492493d126

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