Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef0f0794cdab837…

MALICIOUS

PDF

52.5 KB Created: 2020-08-11 22:53:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 319cd558dc15614a189ec8d7c59eb95a SHA-1: b128ffa6b30b029f283c8df22c1b636eb9dcd326 SHA-256: 0ef0f0794cdab8377e4bc021b7fd791d1236be99e4250ef7256cfad2daf9dda3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as legitimate documents, but they redirect to malicious infrastructure. Specifically, the link https://ttraff.cc/pify?keyword=learning+needs+analysis+and+evaluation+pdf is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a link farm or phishing lure to download 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.cc/pify?keyword=learning+needs+analysis+and+evaluation+pdf In PDF document text
    • http://files.parkcitybrewery.com/uploads/1/3/2/6/132695258/rudilawebizokukor.pdfIn PDF document text
    • http://files.lizannbassham.com/uploads/1/3/1/3/131383541/9516665.pdfIn PDF document text
    • http://files.americaimproving.com/uploads/1/3/2/6/132682110/528907.pdfIn PDF document text
    • http://files.nefertitibeautysalon.com/uploads/1/3/2/3/132302888/8030411.pdfIn PDF document text
    • http://files.intentionalmba.com/uploads/1/3/0/7/130775998/3663881.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/1/0428/9835/8432/files/3789128943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/34979871226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3468/1250/files/89544461894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7199/6053/files/22374138971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2199/7979/files/navodaya_online_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2739/files/musatuzabufox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9437/6605/files/arithmetic_mean_median_mode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/17632500287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8487/3879/files/77541263896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5719/files/navumowep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78214852322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/pizejodemapugazamasaderun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/8305650982.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000080b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B7 5192 bytes
SHA-256: ddf0fc4e1a83d6a1684e7b0e276aaf4780e083f7e3dffac60f2f09f09195ed83
font_01_sfnt_off0000927a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x927A 10632 bytes
SHA-256: 0886f3ba586c25ad14ea26854ec6fa6bf924f1cad0aa8143f2a7cd2246e7fb08
font_02_sfnt_off0000b694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB694 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f