Malicious PDF — malware analysis report

Static analysis result for SHA-256 23bedec593a94170…

MALICIOUS

PDF

53.6 KB Created: 2020-08-24 07:11:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc26b5d07f26b85eccf769931cbafc4c SHA-1: e9abb91c9e715cadad43aef63a8d2302bf75751b SHA-256: 23bedec593a94170464f61f58050f2385984c83fc26e9692a7e7c4f446fe78a4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with many pointing to Shopify domains hosting PDF files, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious component. The document body itself is heavily obfuscated and contains the malicious redirector URL, further supporting its role in a malicious redirection scheme.

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=bhakti+gana+bhojpuri+video+ing In PDF document text
    • http://files.ladkilove.org/uploads/1/3/2/7/132740692/wapamafu.pdfIn PDF document text
    • http://sozire.cpubands.org/uploads/1/3/1/6/131606490/palegimak.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/1/0431/9910/3136/files/jimelogisaneveperigefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/mappa_di_bolzano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/94257642316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0743/3125/files/67833689525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/rig_veda_upakarma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/85408465013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/55488043276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8973/files/lafotupelapajivari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/wizixixifumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/sumotafugovovajidifiviva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9236/8796/files/antecedentes_judiciales_certificado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4017/7317/files/jezewejegalezanipawuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6591/8118/files/pdf_genetics_from_genes_to_genomes.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 3

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_off00008d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9D 5400 bytes
SHA-256: a8ddae8bc793724df55ef1851414659379659bf4a77cb817ee1055f42db72db2
font_01_sfnt_off00009ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FF4 13160 bytes
SHA-256: f082b7dadf01e70ea5a35c217d53db05078c2608dd098e1c779c71a94ccc69bd

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