Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6c5547b7cc99ce8…

MALICIOUS

PDF

42.6 KB Created: 2020-08-03 12:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d099c56fd0eea16da6b3bd10520618c SHA-1: 0e456b66cb6eeded3d6625cda1d87692e3d27510 SHA-256: a6c5547b7cc99ce87a84a6802ce4164df9c929087559219ad52af24ef5293a20
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. This suggests a phishing or scam attempt where the user is tricked into downloading a file that ultimately leads to a malicious site.

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=attractions+ontario+reciprocal+program+pdf In PDF document text
    • http://files.fieldmarshalmontgomery.com/uploads/1/3/1/4/131453402/ferupadevefafok_livekaliro.pdfIn PDF document text
    • http://files.manchestersummerplayground.com/uploads/1/3/0/8/130874332/c8e297395fcf.pdfIn PDF document text
    • http://files.bankerchiropractic.com/uploads/1/3/1/1/131163777/bejovaxulelox.pdfIn PDF document text
    • http://files.inspiredmindstutoring.com/uploads/1/3/1/8/131856723/puwezifit.pdfIn PDF document text
    • http://files.urinalvinyl.com/uploads/1/3/1/1/131164159/gazipibis_xanazumul_lupezixi.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/1/0434/0708/1622/files/60556975003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/97547478965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4956/5853/files/66126118274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9282/6517/files/butiwakisopipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8051/5745/files/8152474661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3747/4466/files/21474280930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/74388095829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6139/3046/files/jirenusuvakux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/9534087952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/jigetevikutukuvobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6216/files/43385784650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/36014867586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demotufilonameviv.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_off000066fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FB 5464 bytes
SHA-256: ea36ec647e3cb0b6769c48e9391cd9361989804bb52537620a0aa787bc5cfa50
font_01_sfnt_off00007975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7975 10384 bytes
SHA-256: 7f65c31bd49e3b91c14d7ceabf232fc6e5b4d9bcd43f9eb87c6a2f35a0f08932

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