Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fcf93cb92a8f051…

MALICIOUS

PDF

35.4 KB Created: 2020-08-20 12:30:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90b7565506a7c7b5f8e22462b2724d3a SHA-1: 9e6ef4c40d6f71d5e6bb5c6243dadfcb9352fe8f SHA-256: 6fcf93cb92a8f051353dd81a3a8b11e116f6b9ea113ba410d3538a9235811be2
234 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, disguised as a 'win 7 32 bit activator'. The document also contains a large number of links to other PDFs hosted on Shopify, likely for SEO manipulation to increase visibility. The presence of a security bypass instruction further indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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=activator+win+7+32+bit In PDF document text
    • http://files.jenniferjoseph.org/uploads/1/3/1/0/131070723/4546412.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/1/0431/3592/6434/files/5494592561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/84626149780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8992/0154/files/seated_overhead_press_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6598/9530/files/manazalixejobizawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6604/8165/files/wirutexefurozidagevepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6648/3103/files/open_google_sheet_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0986/files/46570081782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3612/7911/files/aliments_riches_en_vitamine_d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/bunaporigewanokikotuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5721/5648/files/present_and_past_tense_worksheets_for_grade_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/86184412205.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 6

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_off00004d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D89 5240 bytes
SHA-256: 61ee49c42a343468f1193114e61a2cce28431e04ff709d317aa8c167fe7fbbd1
font_01_sfnt_off00005f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F87 9948 bytes
SHA-256: 8594cca39207b27cf40dea071601c907e633afc94dc9b398026f0adf7db817f4

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