Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a347db008a68a7a…

MALICIOUS

PDF

48.6 KB Created: 2020-08-05 02:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc7a2c656f090d9f334dcffe8d94c5da SHA-1: c6c0b29a3ba32230f44423dc1e387509e2143dd1 SHA-256: 4a347db008a68a7aef44bcc6bbb9d111aada2b3e5707c3ed2c40ff3bb6814e30
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and heuristics suggest a lure to download a PDF, which likely leads to a malicious site. The ML classifier also strongly flagged this PDF as malicious.

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=mind+reader+lior+suchard+pdf+download In PDF document text
    • http://files.bestgardendesign.co.uk/uploads/1/3/1/3/131383959/4583939.pdfIn PDF document text
    • http://files.clausbilt.com/uploads/1/3/0/9/130969184/wirimafefumuf_pasuje_fuxalegubudepon.pdfIn PDF document text
    • http://files.amandamelissa.co/uploads/1/3/2/6/132680796/9ca3d1c9.pdfIn PDF document text
    • http://files.tenderlovingcarefortots.com/uploads/1/3/1/8/131856543/dobugiboperafi-bikiz-purudilimexude-zasekunibutaf.pdfIn PDF document text
    • http://files.leannascachetti.com/uploads/1/3/1/6/131606407/xawiduwefonu_wuxawu_sidujefomepuwiw.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/1/0431/5545/6149/files/xepen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3096/8480/files/76268035259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7767/2868/files/mathematics_syllabus_d_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1336/6182/files/17367791070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/wapitiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9542/5191/files/86597052895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8792/9245/files/landscape_proposal_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7082/5382/files/jilesawidibaxovijepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5294/7873/files/50875459632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/vogomisugobawoponurefas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2224/4264/files/tikoboluzedo.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_off00007e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E56 5340 bytes
SHA-256: 69162491312bbd85856497478eed1f72a6b84eae94d72a38fc29064721e41057
font_01_sfnt_off00009095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9095 10368 bytes
SHA-256: 44170702493da451024925bd0f1f711b7364e02259b84c76faf85b03259ce4f7

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