Malicious PDF — malware analysis report

Static analysis result for SHA-256 433ffe7e09740a85…

MALICIOUS

PDF

82.3 KB Created: 2021-03-10 19:17:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6fb7cffffb55568b4d3678e988a1d4d2 SHA-1: 2cae2ff497f4ac1550abd8badda5da88c17a7e56 SHA-256: 433ffe7e09740a85917fff6dbbf6f1e32128ffea90c49bc65f0f2b8f86e675b9
196 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which point to SEO redirectors and link farms, suggesting a phishing or malware distribution scheme. The primary URL 'https://ponafet.ru/award?keyword=alain+badiou+plato+s+republic+pdf' is used as a lure, likely to disguise malicious intent. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high probability of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/award?keyword=alain+badiou+plato+s+republic+pdf PDF link annotation
    • https://benipotuwazel.weebly.com/uploads/1/3/4/4/134445242/55a90f51b72.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387232/normal_5fe15ef27140b.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/rororepekafoji.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/worusetilofofipevokikif.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/jukanawudeboramosara.pdfIn PDF document text
    • https://bukivobiwizu.weebly.com/uploads/1/3/4/0/134097020/0a77e4b3ed6d.pdfIn PDF document text
    • https://s3.amazonaws.com/dikomavomem/53852264316.pdfIn PDF document text
    • https://jubojavinuduv.weebly.com/uploads/1/3/4/3/134316702/lunosapuxaturesipopo.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/2531726122.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418584/normal_5ff5f95e04b99.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381094/normal_6000755814590.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417312/normal_5ff27e579c157.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/temperature_conversion_worksheet_with_answers.pdfIn PDF document text
    • http://jotelefaxomawut.22web.org/1938930394.pdfIn PDF document text
    • https://juxejiwivila.weebly.com/uploads/1/3/4/7/134713499/2482470.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zebikijixikemas.rf.gd/amazing_wallpapers_free_for_mobile.pdfIn PDF document text
    • http://raraviwikemuliz.epizy.com/cant_open_realtek_hd_audio_manager.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF617 6416 bytes
SHA-256: a497fc52ef216d2369a1cda088bdeb49e1b2edea4e2999984a7939df6a238a3e
font_01_sfnt_off000105e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105E1 5276 bytes
SHA-256: 6c7cfa0efa9208ceb4a2d1a6e87145a85fef6b81ad0641cad7eda626d3156edf
font_02_sfnt_off000117db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117DB 10964 bytes
SHA-256: f09539dffcc7c8518a0f8a0c96435552c580d132f51f72afd00d15d15a1b08af