Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cb10f32d6559e9a…

MALICIOUS

PDF

39.9 KB Created: 2020-08-25 20:29:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1fb4fe581a86f22fc44099afc2e149f2 SHA-1: 1371633394243e6f57276f2bbacee17806a10f40 SHA-256: 0cb10f32d6559e9a5030a75fc49ec56cd45469af31d98c10f3f2f827c23248df
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a known malicious redirector, suggesting a phishing or scam attempt. The document body and embedded links indicate a lure for free downloads, likely leading to further malicious content or exploitation. The ML classifier strongly supports the malicious verdict.

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=herbergers+logan+utah In PDF document text
    • http://files.voyageoftherascal.com/uploads/1/3/1/1/131164130/51ec5dcab89e.pdfIn PDF document text
    • http://files.albanyorganics.com/uploads/1/3/1/8/131856122/5780981.pdfIn PDF document text
    • http://files.moodyteaandthings.com/uploads/1/3/2/7/132740480/6293670.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/1/0430/7176/6690/files/rutipojavanusageguxenone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6065/8333/files/xurifigexepezepoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9800/files/xibixibezibajomove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9715/3943/files/rowilinuwefawixejupetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/zidovitapokijiforemoduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/fofizabajibobejuropudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2975/6066/files/guvikoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/caltrans_bid_bond_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/vukokajabowojibilegevix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/tuzumagudekob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6616/2341/files/meragogukamogobexagexile.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 2

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_off000059ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59AC 5048 bytes
SHA-256: d99b54ed6ab1caaa689ce8664cbd9ef13685baf7d26e9fedad3c22eaf7fb0385
font_01_sfnt_off00006ac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC9 12408 bytes
SHA-256: 819459ac28b7991ff8555fabb4a9afb8b63ffe30a1e70354c2f22f5708e384ea

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