Malicious PDF — malware analysis report

Static analysis result for SHA-256 52674a62fd066f8f…

MALICIOUS

PDF

74.2 KB Created: 2021-01-01 11:33:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b37b1edad9450c48e4aee7448a948a37 SHA-1: a92db6db3d71e2f2530f1b39e53e5b4274aab260 SHA-256: 52674a62fd066f8fbe53f12ee031dc3bab44e76b5fb3cabee46cc2bc60e5d25a
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 lure related to 'coach mobile homes for sale in maine' and an embedded URI that redirects to 'https://traffset.ru/strik?utm_term=coach+mobile+homes+for+sale+in+maine'. This suggests a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/strik?utm_term=coach+mobile+homes+for+sale+in+maine PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410441/normal_5fbd7aa866221.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369522/normal_5fced65cc092d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426550/normal_5fdd33e16034b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450041/normal_5fbf8a66e9a51.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/63b4c1b0-0043-48a6-b36c-6edbe86cd0d7/nefatori.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b01d09bd-688f-49fd-8f0a-443b872a602a/mavenobug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b4296a1-9f92-487d-b472-7fa82330cc7a/kanobikumifabozagowuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8fc5660-0eab-4c10-8462-66f2d4018672/63541538509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3e80fe0-a0c9-4654-aa1b-5a96eb7067a4/38930787260.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e09d372b-e86e-405a-8a85-d1dcfd26a134/jelly_bean_color_personality_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25279497-2138-4eb8-8abb-a80db7d51425/lg_fortune_hidden_menu_service_code.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1ececdc-2bbd-4959-9554-85eb5669c3e6/radapaselupi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f16bd1c1-29a3-47df-8793-2255857e6376/catalogo_pop_corn_time.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee0beb6d-a268-4b3d-8764-4c9d5ec4ed9a/its_me_meet_new_friends_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb57c656-ae90-4037-809e-ca9d58e3cb05/charter.net_email_settings_for_outlook_2013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed478175-fffd-47c7-b72f-dcc171ef95d7/48718887622.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e66e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66E 5168 bytes
SHA-256: f1366403136217df2d056fd979a40439e44b88020899949884ea588a2e1811ee
font_01_sfnt_off0000f7d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D1 10596 bytes
SHA-256: 7a9ec9b5eca95027a51e1b874adf0924eeb230d630f29f5cbb8c5d1541c655df

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