Malicious PDF — malware analysis report

Static analysis result for SHA-256 240b20b40ae073e5…

MALICIOUS

PDF

46.8 KB Created: 2020-08-07 23:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dac3facb8312d9097643ca505af3b9da SHA-1: c679f328ca8235c3789dfd63ff30c5488627aa4c SHA-256: 240b20b40ae073e53f7247da2c2aa03ef927078af868dc8f114a8f21c923b5a1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary heuristic firing indicates that the PDF links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains URLs that are likely part of this redirection scheme, aiming to lure users to 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=factor+analysis+articles+pdf In PDF document text
    • http://fimuxon.karaleighmillerauthor.com/uploads/1/3/1/4/131453109/jobapajefidega_kedigefuwavovi.pdfIn PDF document text
    • http://files.garmonater.com/uploads/1/3/2/6/132681779/826f5c888dba5.pdfIn PDF document text
    • http://files.racerengineering.com/uploads/1/3/1/8/131857270/4950021.pdfIn PDF document text
    • http://files.body-knowledge.com/uploads/1/3/2/6/132681824/2094315.pdfIn PDF document text
    • http://files.achslinkcrew.com/uploads/1/3/1/6/131607163/xedadu_sesomexido_lebop.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/1/0434/4945/0661/files/gijeriwor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9606/3643/files/wilisuvudorikigese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2956/7387/files/niborefupaniromuburekiwub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/rebokejevozabovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7029/1096/files/32437245537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/44392198355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4926/3004/files/11283631529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/rabafalaguwire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8741/9806/files/98267828729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/how_to_identify_font_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8707/5230/files/introduccion_ciencias_sociales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4891/0491/files/bapupoxajazeresitujosonaj.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_off0000784f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x784F 5204 bytes
SHA-256: f3b2e768349317ab65d03bea0158a02d814208513cff615d57035d5e67d01e92
font_01_sfnt_off00008a20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A20 10676 bytes
SHA-256: 25351ac3dde7859d9ca1a2c069b728dc5a76f8f19fa672e7cea125032d73ec8e

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