Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a5bb9afd8ce062…

MALICIOUS

PDF

49.7 KB Created: 2020-08-06 18:30:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e3c69addd30643da70621ba1763424c SHA-1: a9071f986f74654c54ad51c5910fda8529a9a6ed SHA-256: 82a5bb9afd8ce062640b80f237d14f85601bc8bf032c1056b4eb5e1f71e1ec28
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URL points to a redirector that leads to a link farm, likely for SEO manipulation or to host malicious content.

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=agenda+21+map+pdf In PDF document text
    • http://zalubawu.notwithouthopeproject.com/uploads/1/3/0/7/130739718/rarutajel-vilufavudosa-novisumijesujex.pdfIn PDF document text
    • http://files.justbephotos.com/uploads/1/3/0/7/130775934/tamirotorun.pdfIn PDF document text
    • http://files.pretoriawestmethodist.org/uploads/1/3/1/3/131383754/bewolekevito.pdfIn PDF document text
    • http://files.braysbargainzzz.com/uploads/1/3/2/8/132814241/dunijubakosena.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/1/0438/3752/2085/files/migrating_subversion_to_git.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6634/3072/files/vupupugogudelefon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/kosanenobevovut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5689/6927/files/95380256699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2409/7191/files/40779552543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/zomano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7319/1587/files/dasunakulinakarezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2717/7380/files/23240237358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/vocabulary_word_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1698/5508/files/vimalevelizerimax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/sununaxolosilerip.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 7

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_off00008414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8414 5228 bytes
SHA-256: ca8d985382c859a65010da99932520b24b1c2c190161c7dd739a1ed68eb0e5cf
font_01_sfnt_off000095e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95E1 10580 bytes
SHA-256: bb5e82efa812358e80557a46aee3d1ff625b5c80bc38d6d31e4fb58a4e7358f5

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