Malicious PDF — malware analysis report

Static analysis result for SHA-256 be8b5bdd13b73964…

MALICIOUS

PDF

47.6 KB Created: 2020-08-23 15:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9bbe7d8890714c602ecb2fb33da6c78d SHA-1: 202656fa7dc704d1854de2499075353c37cebf93 SHA-256: be8b5bdd13b739640dc95046a0ac1e552fa1eff85e59651990759dc16af7a55e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a mass external PDF link farm. The embedded URL `https://ttraff.cc/pify?keyword=search+form+font+awesome` is a known malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com and other domains, suggesting a large-scale distribution effort. The primary goal appears to be redirecting users to malicious 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.cc/pify?keyword=search+form+font+awesome In PDF document text
    • http://jogowipa.onethreefour.org/uploads/1/3/1/3/131398455/ff0f74031ac6a9.pdfIn PDF document text
    • http://files.happiediapers.com/uploads/1/3/1/4/131406449/b48b5ddd80.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/1/0436/4930/2693/files/25079900029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1786/9211/files/gobekixubedexafemutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/8126/1205/files/62997890950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0479/2729/files/performance_appraisal_spreadsheet_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3756/4823/files/nizisefaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8746/2551/files/latex_beamer_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4416/6037/files/37340580487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2016/3999/files/two_fundamental_characteristics_of_financial_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/67540129032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6464/6049/files/38702576817.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 1

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_off0000614a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614A 5284 bytes
SHA-256: b83edc6fff6d6e0b08c38cbfd385efdd1980f17b0edf62ca0e3dd3166f452d6a
font_01_sfnt_off00007321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7321 6772 bytes
SHA-256: c85a09fba3b739ad96332e572d29c2f031b93eafb0cf223fa946760abb00c531
font_02_sfnt_off000085b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B6 13452 bytes
SHA-256: 3b3149ba275e74f5278783a425c87f6491b68dfd29f8c9738957ff9b7d447dc2

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