Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f4069a11c8e022…

MALICIOUS

PDF

46.4 KB Created: 2020-08-20 22:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d48e90fe67395530a8cccbb2cda269d3 SHA-1: c69eb2454e0a2cb56a480de581355abfd8c13c4f SHA-256: 32f4069a11c8e022ed4762906c21496d8d08a289a141dce8d618f9e964ccde1b
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting other PDFs, and a primary link to a known malicious redirector. The document body mentions 'Caixinha de mdf para lembrancinha de formatura', likely a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates an attempt to lead the user to a malicious site.

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=caixinha+de+mdf+para+lembrancinha+de+formatura In PDF document text
    • http://mukabud.jovenesadelante.org/uploads/1/3/1/0/131070374/xopilivafevisezakati.pdfIn PDF document text
    • http://gujazazi.midwaypantherchoir.org/uploads/1/3/2/6/132695742/2644208.pdfIn PDF document text
    • http://files.mybakehouse.co.uk/uploads/1/3/1/8/131871466/3884670.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/1/0434/1301/2636/files/mogavekir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1802/5117/files/81268169187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7093/9541/files/mqa_bursary_2019_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0530/3205/files/88528086086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/god_of_war_3_android_phone_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0848/2710/files/moxasari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/denaxefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5237/files/42440295379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6660/5219/files/pirazejijowik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/31520528295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/law_on_agrarian_reform_barte.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 2

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_off00007207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7207 5332 bytes
SHA-256: 07e6c3f3233606f3b5c7fe4db46d2050147515af16c27fd4546ec8523c388737
font_01_sfnt_off000083f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F5 12776 bytes
SHA-256: c2d6ecc93b85747e0a9728fd9ee50a13b4ec6950efe7783d7c76de1ec435aeb2

Open this report in the interactive analyzer, or submit your own file for analysis.