Malicious PDF — malware analysis report

Static analysis result for SHA-256 b217e8356af1b3a1…

MALICIOUS

PDF

71.4 KB Created: 2021-01-10 11:35:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 011e9033ee01d0dc52a741fbb0ef36ec SHA-1: 704820fa53e2de09a815eb64692f740f942b292c SHA-256: b217e8356af1b3a19f18060c87f0f3bfc81127be4369b4aa37f96e05df5f62bd
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a high-severity heuristic indicating an image lure linking to an SEO redirector, specifically pointing to 'https://traffset.ru/aws?utm_term=overtime+request+form+excel'. This suggests a phishing attempt designed to trick users into visiting a malicious site. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffset.ru/aws?utm_term=overtime+request+form+excel PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4365634/normal_5fe27081c2985.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489716/normal_5fb74e8079182.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/rudari.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375908/normal_5fe119c190ad0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419437/normal_5fe6cb690e94c.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/artaud_poemas.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/31365017669.pdfIn PDF document text
    • https://site-1211946.mozfiles.com/files/1211946/trendy_nail_designs_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/pebetipen.pdfIn PDF document text
    • https://site-1177244.mozfiles.com/files/1177244/shooting_games_for_ps4_with_gun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414500/normal_5f9ad972e5112.pdfIn PDF document text
    • https://site-1179952.mozfiles.com/files/1179952/noniwezaxewuwawumoji.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000db94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB94 5096 bytes
SHA-256: 6fb1a514d5a5ad081635d7cc163f46089667a4d1a0e12391ae225ae114a30707
font_01_sfnt_off0000eceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECEB 10608 bytes
SHA-256: d44a7021a1ac5c38843ad7ae238c2f1c30a9e80d8e8d08a3d0494e3814ea6c28

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