Malicious PDF — malware analysis report

Static analysis result for SHA-256 a024445e7503e9d6…

MALICIOUS

PDF

43.8 KB Created: 2020-08-08 19:50:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a4f55306f4584854970934254706359 SHA-1: 84f4766dc81a24b6ccd067bbf2be7290c666e47f SHA-256: a024445e7503e9d6730ecee7b8e29235f27088ef0acc2c5672dda71de4d2c24e
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=3rd+grade+math+worksheets+free+pdf', suggesting a lure related to educational materials. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the redirection to known malicious infrastructure.

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=3rd+grade+math+worksheets+free+pdf In PDF document text
    • http://files.louisianaalligators.com/uploads/1/3/0/7/130775400/gemalutoxilip.pdfIn PDF document text
    • http://wifodanib.fishamble.com/uploads/1/3/1/8/131872225/3e8e90cbcef0421.pdfIn PDF document text
    • http://baloz.abqcraftshows.com/uploads/1/3/0/8/130874317/540cff59.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/1/0430/5377/7047/files/31120626319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5199/7592/files/53732307235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56666804065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5971/4971/files/bsc_physics_2nd_semester_question_papers_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nezax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6322/9078/files/87005022644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3234/4736/files/53794978893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7664/9127/files/31422405655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5944/4889/files/catalogo_boticario_baixar.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD2 5280 bytes
SHA-256: 37badb22eb276876800dbff1d6b0ec5094e73ba43cbd6417f8bb05d7f467f58a
font_01_sfnt_off000071d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D3 10172 bytes
SHA-256: f771bd487da61d00661bbaf7695d656905633b235f2b9677bbeff5889b49cddb
font_02_sfnt_off000094a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94A2 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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