Malicious PDF — malware analysis report

Static analysis result for SHA-256 576a2b1bbc41ee51…

MALICIOUS

PDF

46.0 KB Created: 2020-08-15 23:41:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea99bb6fc7500628ad42773294b48e00 SHA-1: 74858c16ffca2493ff69583b32aedbcdfa1a1a67 SHA-256: 576a2b1bbc41ee5108fc30bb51b86fde24e77577fc118be3b7594390dabfab31
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious URL found in the heuristics. The presence of numerous links, many pointing to benign Shopify PDFs, suggests a link farm or SEO poisoning tactic to mask the 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/wb?keyword=banachek%20psychokinetic%20touches%20pdf In PDF document text
    • http://files.unitedchurchofgenoa.com/uploads/1/3/1/3/131380440/garej_xafowabegifowo.pdfIn PDF document text
    • http://files.alyssavegerphotography.com/uploads/1/3/2/6/132682441/wivodopobojami.pdfIn PDF document text
    • http://files.tidewaterclassical.com/uploads/1/3/1/4/131437669/4190761.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/1/0437/8096/4510/files/srimad_bhagavatam_book_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/wofidatawowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8501/2900/files/alimentos_ricos_en_calcio_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0508/3811/files/xobevugetelitifivuleloz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/7848798205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1721/5905/files/nexavej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1825/9365/files/enter_the_gungeon_megahand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5378/3967/files/ripedoronod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/dawupewimigebamumilomasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/vupirepujoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4121/6917/files/case_75xt_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jotinu.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
🗂 Part of campaign: alyssavegerphotography.com 4 samples

Related samples 6

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_off0000725e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725E 5328 bytes
SHA-256: ae235a067878b5dd478666e1e1c2d3c4b0c13e2f03212ba24bc1687b78b3b2e3
font_01_sfnt_off0000847f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x847F 10824 bytes
SHA-256: 74b6edf7fcf0d3d1bec11776846c0ddfb3b89c4264922c9854e4efa6f7f947c1

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