Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddef16941a1fc73e…

MALICIOUS

PDF

36.5 KB Created: 2020-08-17 04:17:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 665c7534eb23ccbd2c03f21e97f33af6 SHA-1: ce9777107690ff480d3714fbec1dab264e8beaa6 SHA-256: ddef16941a1fc73e6425947ae17d9944fbfc7e588e0a382b87c21d98889b1261
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link that redirects to a known malicious domain, disguised as an inspection report. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is ttraff.com, which is used to redirect the user to further malicious content.

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=dyce+primary+school+inspection+report In PDF document text
    • http://files.canalstreetboxinggym.com/uploads/1/3/1/4/131483027/0a494e56f.pdfIn PDF document text
    • http://vuwotuz.e2bioconsults.com/uploads/1/3/1/4/131437363/bonesuk-vujalapeluwudi-degavoxijusa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8140/0469/files/gaxuxowekagitatogot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8705/3475/files/pafokonidusisogagelexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3516/2784/files/boralonudokozijafexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5649/6791/files/gudusivimafuwonilekujibev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/arduino_mega_2560_r2_schematic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9263/0940/files/nbte_curriculum_for_business_administration.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4798/3006/files/52194897081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/japanese_candlestick_cheat_sheet_download.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000450f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x450F 5060 bytes
SHA-256: ac3372c49b20b9b0015773b6fb9792406952da387bca758a8667a84e14e27062
font_01_sfnt_off0000561c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x561C 9636 bytes
SHA-256: 6f903073d5c4da59412205291161193a11a9bf6298044e1dbea01aa87b806412
font_02_sfnt_off00007717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7717 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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