Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5e5c940cab2dfe…

MALICIOUS

PDF

40.7 KB Created: 2020-07-27 07:59:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 066c39b7794b427f0e30e5f3b3cb9863 SHA-1: 40205b28226a690d953386edb1f1cb2b6bbeff5a SHA-256: 2e5e5c940cab2dfec81430e3e3ce1440070bf9421b32cafb78f9d83aa8b26cf0
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external PDF links, suggesting a link farm or redirection tactic. The document body, though heavily garbled, contains text related to converting PDF to images and mentions wkhtmltopdf, indicating it might be a lure for users seeking such functionality. The presence of a 'download button' heuristic further supports the idea of a deceptive download lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=chuy%25E1%25BB%2583n+t%25E1%25BB%25AB+pdf+sang+h%25C3%25ACnh+%25E1%25BA%25A3nh+online In PDF document text
    • http://files.paramountbic.com/uploads/1/3/2/7/132740343/c8cf232.pdfIn PDF document text
    • http://files.mauitravelpartners.com/uploads/1/3/1/1/131164398/9644306.pdfIn PDF document text
    • http://files.fondrentheatreworkshop.org/uploads/1/3/1/0/131070112/7331336.pdfIn PDF document text
    • http://files.gemenvironmental.org/uploads/1/3/1/8/131857679/4122550.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/1/0433/5930/5880/files/gexuvekedagajovigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/dulaxafalixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1787/1255/files/dedasemexek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5425/9606/files/rabelenabutagawemorot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/futikuzazojexopuvenewipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9644/6878/files/20358483480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6801/2182/files/masoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9051/7917/files/79411281035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6897/1418/files/47286819407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0522/2818/files/91162169268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/19740611816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32732230761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7409/3217/files/vubovevetadajetotapedan.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_off00005e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8B 5900 bytes
SHA-256: 7d5cda259228fd1f6d021b7878cd63824509807f4f2618069d9abb334d14478d
font_01_sfnt_off000071c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C2 9796 bytes
SHA-256: f4a4965a0904534773f40db5e5affa9c4c94e42fccb6d53bf6804cbd5b52f450

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