Malicious PDF — malware analysis report

Static analysis result for SHA-256 35e3f1f7d37dbe04…

MALICIOUS

PDF

78.9 KB Created: 2021-03-14 03:21:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 203a08fb9c448e8d760b097ce69d0381 SHA-1: 189275486f9bfc0ddad6a083439aeb3bf21cb76c SHA-256: 35e3f1f7d37dbe04e12a6ca7161796452468f475668f955f923ac69bdf7e0bee
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure, specifically designed to redirect users to an external URL. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URL is the primary indicator of compromise, likely leading to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/strik?utm_term=no+rest+for+the+wicked+kingdom+come PDF link annotation
    • https://s3.amazonaws.com/zamuriza/bellino_fine_linens_hotel_collection_sheets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383704/normal_5ff0b14e34eae.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/16451117331.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471240/normal_5fe7a591e9571.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/15666693549.pdfIn PDF document text
    • https://busununivid.weebly.com/uploads/1/3/4/7/134774072/3783682.pdfIn PDF document text
    • http://dizititakozazi.mywebcommunity.org/96181866931.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374517/normal_601a1c84c9093.pdfIn PDF document text
    • https://cdn.sqhk.co/budatumibowu/QELhdFs/vuban.pdfIn PDF document text
    • http://nenegifivujaxu.mypressonline.com/pride_and_prejudice_free_movie.pdfIn PDF document text
    • https://lokabema.weebly.com/uploads/1/3/4/1/134109183/144eb9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391642/normal_600582535c33b.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/15523097483.pdfIn PDF document text
    • http://bafezixulu.22web.org/46123388883.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/aAvZjeG/30066111214.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428038/normal_5fe5fad76a888.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xenilesaripesu.epizy.com/apc_ups_750va.pdfIn PDF document text
    • http://begujewirefe.myartsonline.com/watapepiwop.pdfIn PDF document text
    • http://vexabimumemig.atwebpages.com/tratamiento_balanitis_candidisica.pdfIn PDF document text
    • http://xofogijatoli.epizy.com/ark_survival_evolved_structures_plus_mod.pdfIn PDF document text
    • http://vovijez.epizy.com/vovuk.pdfIn PDF document text
    • http://fipotunisobojow.epizy.com/how_to_check_a_dryer_switch.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 7

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_off0000f5f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F6 5320 bytes
SHA-256: 1bdfe4aeae02159aff14b69f03597eb3fc683643ba1a8f9f8fa39323ddabc38a
font_01_sfnt_off00010803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10803 10864 bytes
SHA-256: 76e91f355228bcc92120137e3b5072f04d428f658d3b5fccb06c2bf2690e530c

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