Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc52864504e040d4…

MALICIOUS

PDF

81.2 KB Created: 2021-03-08 21:53:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4eb9c4fdd2f2d683885f2cd06ff26139 SHA-1: 4e7a771e92fa9125020e5339d6340cbf75897243 SHA-256: fc52864504e040d465186b9263dcb75ea9c129c9dd61b50abb7bdd7e61a220c9
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, with a significant number pointing to SEO-optimized content or redirectors, a common tactic for phishing or malware distribution. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' strongly indicate this malicious intent. The embedded URL 'https://botokaw.ru/aws?utm_term=how+many+beets+per+pound' is flagged as unknown reputation and is likely the primary malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://botokaw.ru/aws?utm_term=how+many+beets+per+pound PDF link annotation
    • https://s3.amazonaws.com/gezetega/surenebima.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/why_is_my_bissell_vacuum_not_turning_on.pdfIn PDF document text
    • https://mibudixu.weebly.com/uploads/1/3/4/4/134490534/voninapobal.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/android_tv_sony_bravia_forum.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/what_is_modernist.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/vietnamese_tv_guide.pdfIn PDF document text
    • https://raxagipob.weebly.com/uploads/1/3/4/8/134883443/a93dd4ab890.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/34045225879.pdfIn PDF document text
    • http://gosoxegekiri.mywebcommunity.org/pirogafa.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/41693153954.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/4027854695.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/request_for_british_passport_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/53830531315.pdfIn PDF document text
    • https://woziwapimarezex.weebly.com/uploads/1/3/5/4/135400795/c1f8f.pdfIn PDF document text
    • https://dukidisivaturan.weebly.com/uploads/1/3/5/3/135311912/9697514.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/articulate_storyline_360_full.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/terminabsage_englisch_formulieren.pdfIn PDF document text
    • http://momarivido.mypressonline.com/piriformis_syndrome_stretches_and_exercises.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nuzikenevizut.onlinewebshop.net/15029062878.pdfIn PDF document text
    • https://86a9da1b-0b57-4b35-a77a-523886b904cd.filesusr.com/ugd/0d9a50_a390a9e95d8149ad9747786ecbd76d28.pdf?index=trueIn PDF document text
    • http://rogomore.myartsonline.com/kukima.pdfIn PDF document text
    • https://bb74f61c-7045-47bf-9a7e-968101ee373e.filesusr.com/ugd/81ef4b_88940375968040c8a172766b52b3182f.pdf?index=trueIn PDF document text
    • https://ecab545c-19d2-4654-b6ac-fb8b9749f5ba.filesusr.com/ugd/e5412a_3e27d2190ecc498781ca45c6a3df571b.pdf?index=trueIn PDF document text
    • http://pedirite.onlinewebshop.net/46086425003.pdfIn PDF document text
    • https://48cc712b-de5e-493e-a198-f8962849e22b.filesusr.com/ugd/d2751c_f65895680c124f59820430efc1aab760.pdf?index=trueIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10072 5368 bytes
SHA-256: 1dabe2ac05f3fe1075ecf61169d0faa49d2320ed36cad9719de4133d303facfb
font_01_sfnt_off000112a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112A6 11028 bytes
SHA-256: 24911f0e5e498408ed14bf4b1235f2fcd472b4420393f37bb6df8cca1e54552c