Malicious PDF — malware analysis report

Static analysis result for SHA-256 09bea4ee6d621fa1…

MALICIOUS

PDF

57.4 KB Created: 2020-08-20 09:47:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 916316fa43cf00b2a0316d1872a759d8 SHA-1: 73b0f3e36c71809af72f861722283d6478d0007c SHA-256: 09bea4ee6d621fa1b874834ce486546995656cde1ec04412d38f41acdd323b92
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to lure users to a malicious site under the guise of a free download. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or malware distribution attempt.

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=vba+excel+format+cells+bold In PDF document text
    • http://files.thegreenlightconsultants.com/uploads/1/3/2/6/132695556/4553692.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/1/0434/7228/9942/files/gothic_alphabet_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/21868205658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/wogalodavuxunexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/wurewobafezisonaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/25241896883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4689/4758/files/betrayal_trauma_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5964/1496/files/palebajanijudakimajajize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7184/files/gidodijijazisazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2979/8818/files/zekizubowepusiwurivej.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_off0000a4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4AC 5340 bytes
SHA-256: 9ac0f75dddbc6e9e5ea3a8eee63e47f264aeaedc63c8655d325905bd1b64fb5c
font_01_sfnt_off0000b6c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6C1 10036 bytes
SHA-256: a3110f14b5e561a2aa6c4e5d45d69a890540a5715d84a6f4bde1f66bb64ff128

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