Malicious PDF — malware analysis report

Static analysis result for SHA-256 e867766b46991e90…

MALICIOUS

PDF

38.9 KB Created: 2020-08-07 06:12:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7697dd23949f1efc6a9d039b3f35828 SHA-1: e841fb987574e9ab14fdc16e6234fb1f0d8b7e8e SHA-256: e867766b46991e9051ff64520ef0bff596486a2f303ab2d58bb60fab51f59c04
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a software manual, aiming to trick users into clicking it. The ML classifier strongly indicates maliciousness. The primary IOC is the redirector URL, which likely leads to further malicious content or exploits.

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.com/wb?keyword=adobe%20photoshop%20elements%2015%20manual In PDF document text
    • http://xotufaf.eastkentswalecruse.org.uk/uploads/1/3/2/6/132681670/vuminadudalibo.pdfIn PDF document text
    • http://files.ppischoolpics.com/uploads/1/3/0/7/130775014/5345076.pdfIn PDF document text
    • http://files.stewartsrestoration.com/uploads/1/3/2/6/132682040/7247866.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/1/0439/0918/5688/files/46926033001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/53834600469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/radodime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6240/1947/files/jakekabamofavomefawazadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/jakesejavalezewajureva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/56722885949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zumimulapowekulusevenire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/51451125819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4691/0617/files/98310829466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1737/9745/files/rogetexawowedotateviduge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2549/6221/files/mabuberotumiguwukepepise.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_off00005bb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB4 5408 bytes
SHA-256: 61ad707998f1fb8c6ae43a17b8ca67104425d9ec0497c1376ae0841b2d2624c8
font_01_sfnt_off00006df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF4 9732 bytes
SHA-256: b2042f324e1df1787e3856cc5c0650130800d6da188b7667027dc2bb50236d6f

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