Malicious PDF — malware analysis report

Static analysis result for SHA-256 86f67673fbea086a…

MALICIOUS

PDF

64.5 KB Created: 2020-12-23 21:13:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 3cca25eed3efd0557537d10b4ba37dc7 SHA-1: acdd862344ab076b7b04b6668ef9e6d414cfb6d4 SHA-256: 86f67673fbea086a3a213694911fd04b756733e1a663f20b401438e4ddc0b87d
194 Risk Score

Malware Insights

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

This PDF file was detected as malicious by multiple heuristics and an ML classifier, indicating it is a phishing or trojan delivery attempt. It contains a link to a known malicious redirector, 'https://traffine.ru/strik?utm_term=restaurants+in+drifton+fl', which is likely used to funnel victims to a final malicious destination. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/strik?utm_term=restaurants+in+drifton+fl In PDF document text
    • https://madaleva.weebly.com/uploads/1/3/4/7/134772198/doxazosomokiv-wunuxunabiwix.pdfIn PDF document text
    • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/wiwogu.pdfIn PDF document text
    • https://bidumijedurazi.weebly.com/uploads/1/3/1/4/131437194/rixilo.pdfIn PDF document text
    • https://ferirakiwuku.weebly.com/uploads/1/3/4/8/134899479/zikolit.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/d53fd449-4211-4c99-89b0-5291cda358c6/jukominer.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/ximirofalenanolatix.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/factoring_trinomials_algebra_2_with_trigonometry_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/catcher_in_the_rye_thesis_essay.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/chammak_challo_hd_video_song_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb2524e4-1021-462e-b57c-9e6425a01cd2/chac_mool_resumen_corto.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/aadukalam_bgm_starmusiq.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/news_report_on_facebook_messenger.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_off0000c126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC126 4908 bytes
SHA-256: 8dff6872fdc4ca56ce5a821d5a5ac0f59602fd9162656c6f5ce3124292aea963
font_01_sfnt_off0000d1e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E9 10468 bytes
SHA-256: a0e585676ec67647e5267fb33c93c71e1adcaf3bd151193b4b00a75c4f071745