Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aad8f844c0175fd…

MALICIOUS

PDF

52.2 KB Created: 2020-08-02 14:15:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc0716c2a7cec21488ae3bf8ee43b924 SHA-1: 2262acbe67f815025c6adb980433ee32b53f78f5 SHA-256: 0aad8f844c0175fda364e2515483ade39399c24ce35e8f8cebe1e462801480d3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating redirection to known malicious infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=blindsight+dnd+5e, which is also flagged as a high-risk SEO redirector link. This suggests a phishing or scam attempt disguised as a free download.

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=blindsight+dnd+5e In PDF document text
    • http://files.manzanitaspreschool.org/uploads/1/3/1/3/131379290/povuvarijurup_vepinakov.pdfIn PDF document text
    • http://files.unallafricagames.org/uploads/1/3/2/6/132681294/robubiwepepi_jezivet_benusarefamizi_fubopubup.pdfIn PDF document text
    • http://files.esteemvocals.com/uploads/1/3/2/6/132695372/lubiku-xexobepabujewa-gifegofoje.pdfIn PDF document text
    • http://files.carolynnewilcox.com/uploads/1/3/1/4/131438500/4b8b9329dd9f.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/1/0433/6523/6895/files/dafojuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0657/files/24705109119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3728/6812/files/gregg_college_keyboarding_document_processing_11e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1932/7896/files/towaxavevok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/zagodefabenokowukesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/puvakapazujatup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4780083199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5257/1555/files/rejanonoduzaziwagobesurem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/gakif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7496/1059/files/72445615659.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_off0000919b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x919B 4956 bytes
SHA-256: 3502a53c4c65a43d7c319447314315f0d40ce626451aae13964903f5226a67e1
font_01_sfnt_off0000a27c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA27C 9900 bytes
SHA-256: 1fbf831542d147fcb9fe7ee4ef685bf04ea3dd795ee8b1f82bbd11b94f2d1a00

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