Malicious PDF — malware analysis report

Static analysis result for SHA-256 959ff946d2639a58…

MALICIOUS

PDF

51.9 KB Created: 2020-08-05 04:22:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 595cb5a50f14097e8d4dc9ea9fbafc73 SHA-1: c827b44ef572e59141fd6b3872e38a58118d0e9d SHA-256: 959ff946d2639a58fb11723a6fec07da32554dc67effae6bc76b78ebe16c3cd8
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. The document body, though heavily obfuscated, contains the URL for the malicious redirector, suggesting an attempt to disguise malicious activity as a legitimate document. The presence of a malicious redirector indicates a likely attempt to deliver a secondary payload or phish for credentials.

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.ru/pify?keyword=the+bedford+reader+13th+edition+pdf+free In PDF document text
    • http://files.maltafpd.com/uploads/1/3/1/4/131437775/rebunojuvolodazuzes.pdfIn PDF document text
    • http://files.phoenixhsart.com/uploads/1/3/0/7/130738616/zaxetak.pdfIn PDF document text
    • http://files.parkerproductions.net/uploads/1/3/1/8/131856121/51a551ecd153.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/1/0431/2036/1629/files/discord_mass_delete_messages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5595/5619/files/laxafipuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1007/2481/files/19621609926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8691/3431/files/81838768837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0998/1085/files/bamboozlers_diamond_jim_tyler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/66229403094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/98105385821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/42739436702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/jekuxig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7694/3000/files/zopakazapidegamilopiguze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9621/files/6986630560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5009/8085/files/874478011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xikidewutuxazumal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8222 2828 bytes
SHA-256: f1383d7cd59a6739427f7596f1165603adacbacc8f657d4e156367611f565abb
font_01_sfnt_off00008c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C2B 5224 bytes
SHA-256: 5af8320ba5d26b2e85838f74fec766af8547fec5954670fd821eebbcca0629f4
font_02_sfnt_off00009de4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DE4 10196 bytes
SHA-256: 4065c87ae2f47f8ce03b55051ef1a358f94efccea20eda4659025c4d0af0f050

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