Malicious PDF — malware analysis report

Static analysis result for SHA-256 71a668b29a2a3164…

MALICIOUS

PDF

41.6 KB Created: 2020-08-21 09:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48f69c6a7a0b59d4a72ca822a0d80271 SHA-1: 0286b41991657c35f8813cc5df5314ef7b054dc2 SHA-256: 71a668b29a2a3164eeb237251187651e448f588b0236f4ccee622a5e12ebf1b6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector at 'https://ttraff.com/pify?keyword=java+1.+8+0.+172'. This redirector is likely used to obscure the final malicious destination, a common tactic in phishing and malware distribution campaigns. The presence of numerous Shopify links suggests an attempt to create a link farm for SEO purposes, further supporting a phishing or scam lure.

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=java+1.+8+0.+172 In PDF document text
    • http://files.lyc.ca/uploads/1/3/2/6/132695714/c4e1ed.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/1/0433/7618/1400/files/death_of_ivan_ilyich_sparknotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/bowani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8078/5823/files/set_typeface_bold_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6356/5727/files/75897568881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/jerisebije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5064/7204/files/le_petit_bourgeois_gentilhomme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/60495438555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0417/files/fusionner_sans_logiciel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5462/0059/files/wepemolefopogabiwulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0421/4942/files/73928883497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0304/4263/files/sebobadaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/lusogek.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_off00006372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6372 5056 bytes
SHA-256: e378f06de293dd52c7918320b8b66ae7f48ca0082f324685f0bf5c145081c8c9
font_01_sfnt_off000074c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C7 11156 bytes
SHA-256: 1ccf0890de485167e7c4fe2e62fabf0168cf253b9a51db13b92ac9ac10493abb

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