Malicious PDF — malware analysis report

Static analysis result for SHA-256 894b95a7a51c38e8…

MALICIOUS

PDF

47.7 KB Created: 2020-08-11 05:52:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e840cd77aa8428355a8a58780999d593 SHA-1: 2baac09977487b291209ebf58cb6160c28f2d1fc SHA-256: 894b95a7a51c38e85ae0055c5ed7ba691672850736b1e2a5539514c18e2b2554
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=pomada+de+barbatim%25C3%25A3o+pdf'. The document body, though heavily garbled, contains the same URL, suggesting a lure. The presence of numerous external PDF links, many pointing to potentially untrusted domains, further supports the malicious intent of redirecting users to harmful content or phishing sites.

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=pomada+de+barbatim%25C3%25A3o+pdf In PDF document text
    • http://vupuxibul.arielzylberman.com/uploads/1/3/2/3/132303195/1116166.pdfIn PDF document text
    • http://files.aafha.org/uploads/1/3/2/7/132710783/1a2509.pdfIn PDF document text
    • http://tojome.caring-for-cats.org/uploads/1/3/1/3/131379730/niwabopusap.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/1/0429/1313/6799/files/20516070468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2331/8686/files/23559144032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4186/6403/files/84337182367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4684/4054/files/country_risk_analysis_in_international_business.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0913/8075/files/zerabulikonutelawusuroxox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4151/3894/files/vimuwubonuwaxiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6705/7063/files/guwudid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3142/0319/files/analogy_synonym.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6949/7753/files/76114184327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4926/0968/files/data_sheet_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6875/0998/files/dusepoxupow.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off000061d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D5 5436 bytes
SHA-256: ceb01b539b81fc6dd239085dff21f7cde4f6b38dbe9d41b4ef268b45e05a5c24
font_01_sfnt_off000073a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A4 12656 bytes
SHA-256: 0adbaac3c8449abd446621757d56814969bae7fce42730237ff15a8b778cdb6e
font_02_sfnt_off00009ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB7 16164 bytes
SHA-256: 3f70697d8cfd0b9becff5adcad726f9ffedcc5d773cc6f7abbcc82b2f8034994

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