Malicious PDF — malware analysis report

Static analysis result for SHA-256 05a3e95df688c648…

MALICIOUS

PDF

51.1 KB Created: 2020-08-06 04:03:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 546c19c72ef89a38260fc043335d6e86 SHA-1: 838a0f685feb44266147ae6205d45394eed44b68 SHA-256: 05a3e95df688c6481e884c10a1db8695088ecad380144c3cb76dc2633ed4fecc
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service known for malicious activity. The document body, though garbled, includes text suggesting a 'strategic analysis PDF' lure, which aligns with the observed redirector URLs. The presence of embedded links and the ML classifier's high confidence indicate a malicious intent to redirect users to potentially harmful 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.com/pify?keyword=planejamento+estrat%25C3%25A9gico+analise+swot+pdf In PDF document text
    • http://pazibawup.bagsbytheshore.com/uploads/1/3/0/7/130739654/1528984.pdfIn PDF document text
    • http://baweja.rustynailsmn.com/uploads/1/3/2/6/132681670/3720132.pdfIn PDF document text
    • http://files.hollistonxctf.com/uploads/1/3/0/7/130739970/mebumegivi.pdfIn PDF document text
    • http://files.nyegirlboutique.com/uploads/1/3/0/7/130740221/jefali.pdfIn PDF document text
    • http://wuzosi.limoservicealbany.com/uploads/1/3/1/0/131070493/pugez-pikipasip.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/1/0434/1838/6588/files/toseruwunaduko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3260/8921/files/xewijirizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/kotojidozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5002/4603/files/speak_graphic_novel_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/sarujafobodewebidifani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5149/files/gonudajoxazisevode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7066/6390/files/91281138307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9358/0189/files/perojixusuvubipefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9903/7595/files/64931152711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1021/9432/files/zawem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8728/0790/files/fiwarubalewebifode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/zisub.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 8

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_off000085c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C7 5784 bytes
SHA-256: 80b791b56e2b209268337015f9a82bd4327557cc41ec11c4a27e0bd444cc95de
font_01_sfnt_off0000993a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x993A 10556 bytes
SHA-256: 6af62e92994f2c352ac9cbdaa7d376c429c2aa72df1f13f73bd92a881c28e81d

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