Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcac901fd252da48…

MALICIOUS

PDF

39.9 KB Created: 2020-08-24 00:00:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf5975ff9083f6f32bda07d614bbf861 SHA-1: f072e7513506d5c84632d6fab90665b7a99fd5f9 SHA-256: fcac901fd252da4890a6764cbe07ce446af29f6a352cbbe1ae986e28655867b8
162 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, includes the same redirector URL and a list of other URLs, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute malicious content. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=buzz+video++hd+1080p In PDF document text
    • http://files.westyorkshirefurniture.co.uk/uploads/1/3/1/3/131398509/ligagipewopag.pdfIn PDF document text
    • http://files.detranslations.com/uploads/1/3/2/6/132682806/98495.pdfIn PDF document text
    • http://files.alexbenarzi.com/uploads/1/3/1/4/131453592/4870172.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/1/0439/4024/9755/files/weight_and_balance_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2637/3797/files/joomla_3_templates_full_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/1418/6150/files/black_desert_online_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6327/8758/files/sql_licensing_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2882/4742/files/assiduidade_dos_alunos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/printable_shooting_targets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5416/1310/files/darazojuzodibizimekof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jatebilebasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9799/0055/files/vedikut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6572/7384/files/ejercicios_de_cicloalcanos.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 7

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_off00005f4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4D 5080 bytes
SHA-256: 61e4dfd8dce5ff27c18ece12990207331f8c821de5be746398f19e0e9f3983e4
font_01_sfnt_off000070a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A9 10176 bytes
SHA-256: 3460020bab08aa8b9323eb50b5593aa42e00f78678405f93e0a7ba4d2657aea0

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