Malicious PDF — malware analysis report

Static analysis result for SHA-256 fde5b9dcf0f65211…

MALICIOUS

PDF

40.6 KB Created: 2020-08-07 15:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fef58154989c411601abdfea832d0e12 SHA-1: a758215a6fe81ff25502298f49d6e34786d4476f SHA-256: fde5b9dcf0f652112392a8b37b7782b5ef318200cc1945a8d26f1746509351db
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to 'personification worksheets for grade 6 pdf' and the malicious URL. This suggests a phishing or scam attempt disguised as educational content, aiming to redirect users to malicious infrastructure.

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=personification+worksheets+for+grade+6+pdf In PDF document text
    • http://files.kenshen.store/uploads/1/3/2/7/132710621/refibam_kutegumaze.pdfIn PDF document text
    • http://files.gameart2d.com/uploads/1/3/2/8/132815123/1d8dbe8fd.pdfIn PDF document text
    • http://files.lovemehemp.net/uploads/1/3/2/6/132695388/fegevegexu.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/1/0429/5104/9370/files/53284054210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/pufarozex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridikesomuzumiburowafex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zafon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27621352833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/6466/7810/files/topology_optimization_theory_methods_and_applications_bendsoe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/fomuxinobililazudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3375/4773/files/regional_anatomy_of_upper_limb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/rudepizugesusux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/60703280041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/ielts_writing_task_band_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bofudajix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1017/8717/files/59706569956.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 4

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_off00005f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F47 5696 bytes
SHA-256: 7088dee0b17cd21a0d00b8b0fe5a930473af46d60a61e6caa3c46f3295ceabe2
font_01_sfnt_off000072c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C0 10024 bytes
SHA-256: 17c85e6740fa18f0479b585f70c088a9bba955776afddad246f08e2857cb779e

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