Malicious PDF — malware analysis report

Static analysis result for SHA-256 443c2a1b9fdffccb…

MALICIOUS

PDF

41.9 KB Created: 2020-07-28 05:02:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e599e346d27482ec34aa34448f1e46f SHA-1: 32aa3e910050d4ede4b8ca535f95b879d4ed523c SHA-256: 443c2a1b9fdffccb1f207f97b03dd22d83f201a7575b04356c296e2fc5865a26
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicating that at least one of these links points to known malicious redirector infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further suggests that the document is designed to host a large number of external links, likely for SEO manipulation or to distribute malicious content. The presence of a redirector URL and a large link farm strongly suggests a malicious intent to lure users to harmful sites.

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=child%2527+s+play+3+full+movie+hd In PDF document text
    • http://files.flowartspace.com/uploads/1/3/1/6/131606630/tizufenazaj_miloda_kamurovisoriwu.pdfIn PDF document text
    • http://files.pcpachicago.com/uploads/1/3/1/3/131379761/pokadojuvikopinaji.pdfIn PDF document text
    • http://files.nomadicsteve.com/uploads/1/3/1/4/131437538/42cb4690f8.pdfIn PDF document text
    • http://files.waycross.tv/uploads/1/3/1/3/131380717/tufaritukidusorig.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/1/0430/9018/2297/files/zotumolofotekunob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1093/1358/files/novekanumivixidimakaxon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/nomofivoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8791/1319/files/vezerelodab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4115/2406/files/bujigit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5255/4657/files/91566880423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/64006338528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/zuxarumalejupisisebul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2831/5293/files/57188145307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7117/5832/files/tatakitisotobokagavik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2214/0063/files/60788089520.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_off0000660a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660A 5264 bytes
SHA-256: 6151ea431dd652af4c73982b450cb537e2fc868e61798b3456a270263a73f9a9
font_01_sfnt_off00007811.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7811 10104 bytes
SHA-256: 0e4a7837ca68d4ed4440a36487daa343f0ebea51e2922bfc570687c59faf9ab6

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