Malicious PDF — malware analysis report

Static analysis result for SHA-256 20cdfb14afdf8438…

MALICIOUS

PDF

38.0 KB Created: 2020-08-23 22:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b9874e0e28601f97834d856fec16311 SHA-1: 3c6304ad6aacba194c3fea10f1d7a51a94112420 SHA-256: 20cdfb14afdf84388943508d651332fa031f3c8e4c4ebbed8e8fc2e7d2b11fc1
194 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to a known malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text and embedded links suggest a lure related to 'Bugatti wallpaper for android', which is likely a pretext to encourage clicking the malicious link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting the malicious intent of redirecting users.

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=bugatti+wallpaper+for+android In PDF document text
    • http://files.eldridgechurchofchrist.com/uploads/1/3/1/4/131406527/d281edcfce2360.pdfIn PDF document text
    • http://giterevu.lobemadesigns.com/uploads/1/3/0/7/130775478/vakodopoxat.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/1/0432/8597/1110/files/cerita_rakyat_malin_kundang.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4380/5591/files/facebook_sdk_android_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/2812795171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7748/2136/files/basic_information_about_gst_return.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5344/8358/files/hd_wallpapers_1080p_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6334/4294/files/blackroll_bungen_rcken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/bavave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6570/3590/files/15864481623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/jenejifusozaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/template_literals_in_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/71680977654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2418/files/74107585012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/77399613321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0917/0856/files/pekuruzulafisuworuz.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_off00004e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6A 5172 bytes
SHA-256: a38f9ecfacfa92714ec7a7000c3924bc6d9d7ebfb739f8a59d9bf88a6f67c81b
font_01_sfnt_off00006029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6029 13912 bytes
SHA-256: f75d3e870f21c4b975fa56bec0abedf9e0d03b3a76f0fa294c26aac168aea962

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