Malicious PDF — malware analysis report

Static analysis result for SHA-256 80494b516658bd5d…

MALICIOUS

PDF

45.9 KB Created: 2020-08-06 23:04:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d96799f3163f7cb933321f958d671820 SHA-1: 6bbb21107c556d9a77122054742a32094ef6a964 SHA-256: 80494b516658bd5db607058aa962853d280f3693efaa290ea65a667084b45f55
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector. This suggests the primary goal is to redirect users to malicious content, likely for phishing or malware distribution.

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=baixar+pdf24+pdf In PDF document text
    • http://files.unitedkingdomvintage.com/uploads/1/3/1/3/131398542/06db50a.pdfIn PDF document text
    • http://files.florinsquare.com/uploads/1/3/1/3/131379594/pogas-pukom-fawozebiler-sumofozumagobux.pdfIn PDF document text
    • http://files.longlanecorgispei.com/uploads/1/3/0/8/130873945/9675f4.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/1/0429/0061/9423/files/xasiromovidiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2862/6080/files/milomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/foxufelobarukejetuvokawuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/wunemolopane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/94242689714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/7392405635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/pesekulasopupajim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6859/7158/files/gugamavizekanokosejuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7338/6136/files/split_list_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8454/6209/files/93686222111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/fiwebobebowatipaxekavejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/2885613562.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_off00007647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7647 5164 bytes
SHA-256: 6e4e3a34ac17a2131bf929da44ce3ef6f814f98587f2c0098936c50f3a5a2a97
font_01_sfnt_off000087f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F9 10228 bytes
SHA-256: c04ba16ed811615c0327c27fe37dd30f5f10b94c8aa5722907c9ba02ab1dc350

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