Malicious PDF — malware analysis report

Static analysis result for SHA-256 b54e0a6f174a976e…

MALICIOUS

PDF

46.0 KB Created: 2020-08-10 20:14:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 53f37a91b1a46e9266a0d648681da9b8 SHA-1: f843dc1266b1326a3f33742f1c0392c5e3a1f6a2 SHA-256: b54e0a6f174a976e3ee414d25ba5f4ddcaa46551d348da8c064fdd04510067cf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=caries+dental+infantil+pdf'. Additionally, another critical heuristic indicates a PDF link farm, with many links pointing to benign Shopify URLs but likely serving as a distraction or SEO manipulation. The document body contains obfuscated text and the malicious URL, suggesting the primary intent is to redirect the user to a harmful site. No scripts were extracted from this sample.

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=caries+dental+infantil+pdf In PDF document text
    • http://files.tasmanianpioneers.com/uploads/1/3/1/4/131411596/a46df5.pdfIn PDF document text
    • http://files.skydivevoss.no/uploads/1/3/1/3/131379134/kaxuroworif.pdfIn PDF document text
    • http://savam.ooh-la-lafrenchies.com/uploads/1/3/1/3/131380005/fe5ed633.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/1/0431/6479/5044/files/4685793436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7713/9613/files/english_course_for_spanish_speakers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8941/2764/files/tsc_appraisal_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3794/0117/files/centurylink_c3000z_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3686/0839/files/81765167708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8812/1760/files/soxigomujeborozufurulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/74852783192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/dnd_5e_grick.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1520/8098/files/zizafufadasixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4335/6821/files/geseturaferup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1617/4237/files/java_sort_string.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/dujemisopibidofugirig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2699/7663/files/36212451602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1770/7413/files/livro_liberalismo.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_off000075e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E1 4940 bytes
SHA-256: 328ba864393399cb1467927186f8d5f840ec2a08d74de55224bba3ef0df175ca
font_01_sfnt_off000086b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B7 10764 bytes
SHA-256: adcdb76df264e966e57c390f9796c9e2c1973db71a233c387df42d0d3a7c10db

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