Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce8cf0e033f7c1b…

MALICIOUS

PDF

40.8 KB Created: 2020-08-05 05:42:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51c7d29084b1f6657c89627f63ae0634 SHA-1: 0e1429050ea911a7a8000dfe82bdf85deb3d1393 SHA-256: 5ce8cf0e033f7c1bd11530f8025e4beb5ac5cb937d62a0763e7f66692fae6b35
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, which is indicative of a link farm or phishing lure. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains the malicious URL and other URLs that appear to be part of a link farm, likely intended to deceive users into downloading malicious content.

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=braiding+sweetgrass+kimmerer+pdf In PDF document text
    • http://files.sweetdreamsweddingflowers.com/uploads/1/3/1/6/131606186/58356f3725.pdfIn PDF document text
    • http://files.letschoosejoy.com/uploads/1/3/1/3/131384429/zajikovotoj.pdfIn PDF document text
    • http://files.nwaw.com/uploads/1/3/0/8/130814283/102cc33931bc.pdfIn PDF document text
    • http://files.skylineelectricalmn.com/uploads/1/3/0/9/130970009/denojukewuf.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/1/0432/0555/8436/files/8731262420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/35067290340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7750/9020/files/kugar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2603/9452/files/7889541826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7952/4759/files/muzixud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/13461611575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/patidiwaxirafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/54853958034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/9335598239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4648/1570/files/minecraft_1._13._2_forge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/tuduxoweve.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_off00006219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6219 5536 bytes
SHA-256: 85bbbc2450c5556bc8238976322e39c59d48a51a0c8f5f83c5ed713a95719362
font_01_sfnt_off000074f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F3 9788 bytes
SHA-256: 258ed639db7f4cff2ebc7da1bafbc0fac1b0b2a3b0ac6d61bc35a2c964313dc5

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