Malicious PDF — malware analysis report

Static analysis result for SHA-256 269acdcf4252f7bd…

MALICIOUS

PDF

45.0 KB Created: 2020-07-27 18:40:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 32da14f742d75c9731ce1cfb10c6cd6a SHA-1: cf275d783b2fe0a390b3ae39ed479f2a86935823 SHA-256: 269acdcf4252f7bd74ea095caa095be75c8b885bb5e7bebb28db775369fdebd5
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The embedded URL points to a redirector service, which is a common technique for distributing malware or conducting phishing attacks. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs.

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=creepypasta+lazari+demon+form In PDF document text
    • http://files.pawsitiveperspective.net/uploads/1/3/0/9/130969986/livunefo.pdfIn PDF document text
    • http://files.holisticcoachsg.com/uploads/1/3/0/9/130969624/feboperugoxide-tinawijatafof.pdfIn PDF document text
    • http://files.panduct.com/uploads/1/3/1/3/131383575/9904361.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/1/0428/9835/8432/files/pegumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6100/9829/files/nimuxigapujigupadam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/86885276772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0374/8260/files/xogij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/35893464703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4101/2377/files/54511542093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1024/2198/files/kadavun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1982/0446/files/97152971103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/zemapokug.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 7

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_off000072d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D0 5152 bytes
SHA-256: 1fd4bd85851527f25519444d5be5c602dd0511d89a94ff6d19d70659a1e1805a
font_01_sfnt_off00008448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8448 10208 bytes
SHA-256: deac5528a19fc6f3d29347d9a0cfb5feecec04aa95a164009e1b12ce5c5b9f10

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