Malicious PDF — malware analysis report

Static analysis result for SHA-256 b56369cf60e2fd5d…

MALICIOUS

PDF

53.7 KB Created: 2020-08-08 16:53:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a6633f4feb6fff258ca343412dba73a SHA-1: 1ca29713dbedc790e4c81ba4cfc2e8f19368977b SHA-256: b56369cf60e2fd5de8ecf56db45ed3d8e99cef637ae404c6b6ed14787433a53f
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a tactic to drive traffic to malicious infrastructure, potentially for phishing or malware distribution. The document body contains garbled text and what appears to be metadata, but the primary malicious activity is driven by the embedded links.

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/wb?keyword=antonyme%20anglais%20pdf In PDF document text
    • http://files.stonecirclepress.com/uploads/1/3/2/6/132682585/5083095.pdfIn PDF document text
    • http://files.thelonewolfdojo.com/uploads/1/3/1/3/131398573/tofuzove-rurig-tomisire.pdfIn PDF document text
    • http://files.eyewearsociety.com/uploads/1/3/2/6/132683014/jididevesun.pdfIn PDF document text
    • http://files.22ninthstreetu707.com/uploads/1/3/0/7/130739227/52c293b53b6fb5.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/1/0441/2493/0200/files/wuwilaxusufal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8427/4081/files/tawudanoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/58592590659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5196/5855/files/election_results_2020_pakistan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8149/7766/files/1515691663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6331/2533/files/55455587917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/ditukiwovodevoxelelariku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8694/5187/files/mupanogazarexelikupejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1638/7733/files/microcrystalline_cellulose_msds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/70109914797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8954/9726/files/19184243762.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 3

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_off00008743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8743 5356 bytes
SHA-256: 84c53da63f87659ae4773f79b893026c124e2c45734e3bf7c12419f9b4d5d833
font_01_sfnt_off0000997d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x997D 15868 bytes
SHA-256: a9b5ca2d8413abfa0c506c8a385683a7d286e59f72f9772240fa7f99ab7b2996

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