Malicious PDF — malware analysis report

Static analysis result for SHA-256 32dcaa8320df291f…

MALICIOUS

PDF

37.2 KB Created: 2020-08-06 12:57:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d86b3c7e34fec23869ec754590c288a0 SHA-1: d90785314446ea020458a44201efad9cefb55bfb SHA-256: 32dcaa8320df291f89967687d17b68fac15205a2494e3b3c03890543b9658541
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The ML classifier also strongly indicated maliciousness. The document body text, though partially corrupted, contains keywords related to the embedded URLs, suggesting a lure to a link farm designed for SEO manipulation and potential malware distribution. No scripts were extracted, but the primary attack vector appears to be the malicious redirection via 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=sheet%20metal%20pattern%20drafting%20and%20shop%20problems%20pdf In PDF document text
    • http://files.27waterfallsshoreexcursion.com/uploads/1/3/0/7/130739779/rizibijis_potikugopom_jedigu_mojon.pdfIn PDF document text
    • http://raforelo.motivationalcheck.com/uploads/1/3/2/7/132710621/ritovalegedagika.pdfIn PDF document text
    • http://fofoka.armaeroconsultants.com/uploads/1/3/2/6/132681579/tabesu_binuweva.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/1/0435/6934/8763/files/65250225336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9592/4637/files/98964646831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/lakimixebatek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2960/files/st_thomas_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/fopoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9633/4753/files/69226765305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/paripurupoladukejikumebon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8549/5453/files/99235681900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5529/2321/files/dobowiruzuximup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/fawojasoxubipajojuluwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9661/0718/files/paraxonebeseburosawuguju.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_off000052ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52CA 5696 bytes
SHA-256: 426494d87325d2868c7638654cbc84b9826874acf5e8cd2cfb77800c60eb9490
font_01_sfnt_off000065f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F1 9976 bytes
SHA-256: af64192c530d358ae1d3cb4a902c4d1514a16393b236c5e50d25b1b0107fc5f7

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