Malicious PDF — malware analysis report

Static analysis result for SHA-256 1225fec66ee614e5…

MALICIOUS

PDF

41.5 KB Created: 2020-08-13 08:30:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11e13fc80bd0017397f328f15b478b24 SHA-1: d18cdb53b4aecba2b596e0737021cb82af319ecf SHA-256: 1225fec66ee614e5d8faded6baa6a6b68656fbae7917dface45315ed4a4cd0a8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic firing indicating it's a redirector link to malicious infrastructure. The document body, though partially corrupted, contains text suggesting it's a 'workshop manual' lure. The presence of many external PDF links, some benign and some unknown, points towards an SEO spam or phishing campaign aiming to drive traffic to malicious 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.ru/wb?keyword=piaggio%20zip%2050%20workshop%20manual In PDF document text
    • http://poxasu.lieberconsulting.com/uploads/1/3/0/7/130776167/5cc9a89ee5aaa41.pdfIn PDF document text
    • http://files.cameronmarketing.com/uploads/1/3/1/3/131379266/5838389.pdfIn PDF document text
    • http://files.wapropestcontrol.com/uploads/1/3/0/8/130873872/timenus.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/1/0440/2829/7381/files/winebotiruwarezawemamibuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9776/7592/files/65480577949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0972/7912/files/xinupawigof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/63714604341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1613/4562/files/eenadu_news_paper_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6598/3655/files/zukozanijuvumalufixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/10451935995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6248/0296/files/nfpa_15.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/nicomachean_ethics_sparknotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9373/7118/files/57438666111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2324/5207/files/business_communication_process_and_product_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8461/9680/files/85887941228.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_off00005a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A34 5704 bytes
SHA-256: 76b9a673f1af17f0fb57ea16f90d0b40414899fecfd65b03bb634e14ded31952
font_01_sfnt_off00006d8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8E 14048 bytes
SHA-256: f8f43138d8825aeab00566420e7d4a0963ce002f4e5a66ee63c7ff45333aba5d

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