Malicious PDF — malware analysis report

Static analysis result for SHA-256 05fa9a4b9c7d7dcd…

MALICIOUS

PDF

53.0 KB Created: 2020-07-31 04:52:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e352bb92525a5a564155bf523bf7f4ab SHA-1: c9952599ffa98531d508072c5fa207b84a1f5a01 SHA-256: 05fa9a4b9c7d7dcdf5010300b50e0146b57cc8577c034aacd872c9425cc2e5a2
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to potentially harmful sites. The ML classifier strongly supports maliciousness. While no scripts were extracted, the embedded URLs and the nature of the heuristics point towards a phishing or malware distribution scheme, likely initiated via spearphishing.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=trend+micro+worry+free+advanced+pdf In PDF document text
    • http://files.miguelbatalha.com/uploads/1/3/0/7/130776656/353f27.pdfIn PDF document text
    • http://files.photographybydennisj.com/uploads/1/3/2/8/132814086/pawububeboreperov.pdfIn PDF document text
    • http://files.elizabethkilcoyne.net/uploads/1/3/1/0/131069789/7769695.pdfIn PDF document text
    • http://files.casalebenedetti.com/uploads/1/3/1/3/131379099/zizekoxagazala.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/1/0431/6971/0242/files/94819920390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/48347000840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8981/3909/files/36243351335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/zedenuvoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8741/2900/files/ruzivevebit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/36699124726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/25712157026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1898/5370/files/veserezidevuwawusiben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3077/files/dobovixofapulexinefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/62161062522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/55195319911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/foxipikobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5992/9503/files/84325929617.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_off0000935e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x935E 5000 bytes
SHA-256: 95d85166d25a537dbf5290809a2daf91b73eb28bf802a77603168bfd153480b1
font_01_sfnt_off0000a44c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA44C 10120 bytes
SHA-256: 7b5efc7e7bd3ed5b34c6bc1db460a600e64e609099e8f58e86418748cc7092e5

Open this report in the interactive analyzer, or submit your own file for analysis.