Malicious PDF — malware analysis report

Static analysis result for SHA-256 35577e2fadcd905f…

MALICIOUS

PDF

46.1 KB Created: 2020-08-07 08:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd0391031916b6f702345635c5e64bbf SHA-1: 6623775c2e8e4763587ff5b9f32864d73c24a756 SHA-256: 35577e2fadcd905fc369f0a0ccc48d5770ce7186dfab28d0fd590b73dea22ab5
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'critical discourse analysis example pdf' and a URL that appears to be part of a link farm designed to attract search engine traffic. The presence of a malicious redirector suggests an attempt to lead the user to a harmful site, likely for phishing or malware distribution.

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/pify?keyword=critical+discourse+analysis+example+pdf In PDF document text
    • http://files.wincantonchiropractic.com/uploads/1/3/1/4/131411542/melegazularujas.pdfIn PDF document text
    • http://files.artsmartmanila.com/uploads/1/3/2/7/132710784/857d8470a3ff82d.pdfIn PDF document text
    • http://files.opossumbottom.com/uploads/1/3/1/4/131411762/wugalil.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/1/0437/2489/8453/files/zasigenowevad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8094/9658/files/gokigetome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5199/7592/files/boretuminabizunaxuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/rofojoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5293/1995/files/42334413641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6491/files/zaragazolalesimizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/3789003481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7868/0727/files/titiloguxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8488/1827/files/2877853573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9960/9505/files/77813929166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8461/0712/files/86401106163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6125/6091/files/69333400473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3225/5392/files/36889462208.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 6

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_off0000761a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761A 5376 bytes
SHA-256: 78ab46aa3525623818e4c3b753e227eeb25fcd6d5409b166c64a75a08c4f4f13
font_01_sfnt_off00008857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8857 10140 bytes
SHA-256: e330edbed209116f0fe4d7d04edad5138bc651a125ec5f53c51037e220fb4248

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