Malicious PDF — malware analysis report

Static analysis result for SHA-256 607bc11b3fc00232…

MALICIOUS

PDF

39.9 KB Created: 2020-08-19 12:33:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a67b691699cc9a60992b079c9f7f4f3d SHA-1: 8b113a2ef45bcec5284a3376dcba8f10c51186a2 SHA-256: 607bc11b3fc00232d80e387e7255ec5dd608af70f340be226f47a25230612a04
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains text suggesting a 'sale agreement sample format' lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=sale+agreement+sample+format, which is flagged as a malicious redirector.

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.cc/pify?keyword=sale+agreement+sample+format In PDF document text
    • http://files.creedpaintings.com/uploads/1/3/1/0/131069812/eee1c34b4.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/1/0433/1021/9432/files/google_ads_certification_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3121/5774/files/pasabenenetawefavesag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kipisoluni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4687/8882/files/bisujikerumugukalezofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/xeriwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4398/7361/files/pugisumilisekefase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/43509451323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/aldi_mobile_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7529/5640/files/formation_aviculture_tropicale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9777/4497/files/esl_future_going_to_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2123/6384/files/fazabeduvuxewovusoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0445/2246/files/zirobumafuzewaranegogovug.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6069 5324 bytes
SHA-256: f0e35f0120c63c315d2b9bb5b89496e8e56cf89a76b8d41c4433e397eeffc116
font_01_sfnt_off00007265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7265 9608 bytes
SHA-256: 84685a6ab07c54ba9842d817f701e9f4d5c5e8077184b07cdc7e6ff402f0c2cb

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