Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b95e87dcf58495d…

MALICIOUS

PDF

35.0 KB Created: 2020-08-18 13:17:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d2cbcd15293eb73e38731a53295ba94 SHA-1: 5c09ccf08ec299c618791b5d6aa273b9fe882b8d SHA-256: 8b95e87dcf58495d9e5fed053bf89921c267c38f531c1c884c7315781606b11e
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, disguised as sheet music. The PDF also contains a large number of links to other PDFs, likely for SEO manipulation to increase visibility. The document body contains obfuscated text and a URL that matches the malicious redirector found in the heuristics.

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=carrie+underwood+blown+away+sheet+music In PDF document text
    • http://wadez.dawntrygstad.com/uploads/1/3/1/0/131070993/fezores-xotefixaz-pexekaxagazow-zizuxadape.pdfIn PDF document text
    • http://files.bonneygirlphotography.com/uploads/1/3/2/6/132681204/sapoxorufewodod.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/1/0452/2138/0247/files/free_apron_sewing_pattern.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/ielts_speaking_topics_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0535/3889/files/reprendre_confiance_en_soi_livre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/42178927748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5644/7136/files/casio_privia_px_330_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/levodetolaledoxiliwofewuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7949/7896/files/bugzilla_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/59504079305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/dipitolimurijenizeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4253/6604/files/65256095652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6879/8614/files/39173612866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/fapoxivuke.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 8

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_off000049b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49B2 5420 bytes
SHA-256: e479bf00088c242bc4bc2f1ed0fe30d048c5b8d9d2b40cea76ca5c164e9cf666
font_01_sfnt_off00005c00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C00 10376 bytes
SHA-256: e76c87a5ce0e107f05d334830ce10f3e5bdd9e7b0d87684937ce1e63885945f0

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