Malicious PDF — malware analysis report

Static analysis result for SHA-256 40b40a10a50df623…

MALICIOUS

PDF

37.3 KB Created: 2020-08-27 23:25:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db6f4a9799303fde450b49e9d8e8a8ac SHA-1: 6cace8858258feadf51d2c1bb5e23308fb51250e SHA-256: 40b40a10a50df62384a1176c341b0ec970968e58ae52ebc57056e0031c911a08
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.link/pify?keyword=iso+9001+2015+fdis+pdf', which is flagged as malicious. Additionally, the PDF exhibits characteristics of a link farm, distributing many external links, some of which point to potentially malicious domains.

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.link/pify?keyword=iso+9001+2015+fdis+pdf In PDF document text
    • http://sebibata.northcobbphotoclub.com/uploads/1/3/2/6/132696056/wuxunipeto.pdfIn PDF document text
    • http://fogirizax.mitchadvent.com/uploads/1/3/1/6/131637046/tajujisokifa_gojedomobeke.pdfIn PDF document text
    • http://zamaj.thejournalofpolitics.org/uploads/1/3/2/7/132741073/xademudokak-wilagagofizejo-memidezab-kavafijegu.pdfIn PDF document text
    • http://jusejab.davidsolomonjudaica.com/uploads/1/3/1/4/131453215/notubedodopilo.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/1/0441/3063/1832/files/wodunakamokifivexonitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9626/8193/files/compound_words_worksheets_for_2nd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/how_to_view_source_code_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1547/0245/files/58357200544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/20081998733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/sovukekeluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/bookworm_game_free_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/mapbox_polyline_example_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9799/5944/files/missguided_petite_denim_shirt_dress_in_white.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3490/1660/files/layunin_ng_akademikong_pagsulat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6896/5532/files/dakutiwibav.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_off00005543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5543 5240 bytes
SHA-256: 7f50c2cc939170efbe7c97572376d83c49e1428213e4c2229cda5ab00abd9382
font_01_sfnt_off00006730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6730 9800 bytes
SHA-256: c15416907b0b4b38f475c2b44d97a35424a5bed9e35788a0c959431d5665b527

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