Malicious PDF — malware analysis report

Static analysis result for SHA-256 da35f1a67ad705a7…

MALICIOUS

PDF

77.5 KB Created: 2021-02-15 14:45:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f9aed22059c9dff3bd29e35e9aba4eff SHA-1: 0bdd7a7407f1947b29fb74512b60187e8d879f88 SHA-256: da35f1a67ad705a7335a4f0209afbf68c08d518148558672260bd2468523d6b6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to 'Tom sawyer's island disneyland california'. No scripts were extracted, but the presence of an external URI suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/strik?utm_term=tom+sawyer%2527s+island+disneyland+california PDF link annotation
    • https://cdn.sqhk.co/sosobita/LkijCCj/vomiting_blood_after_tonsillectomy.pdfIn PDF document text
    • http://amorexpo.com/77203808425wdly7.pdfIn PDF document text
    • https://cdn.sqhk.co/lelogusobade/kia5N59/72453132321.pdfIn PDF document text
    • https://cdn.sqhk.co/wujukipako/uhcjcha/xedaxuwuvupud.pdfIn PDF document text
    • http://goodsun.space/63757256681nrmr5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370286/normal_5ff191295b976.pdfIn PDF document text
    • http://healsmall.space/sa_trending_videos_downloadhbu18.pdfIn PDF document text
    • https://cdn.sqhk.co/zenekukera/hcMgdmp/digitech_jamman_looper_phrase_sampler.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fokapikow/vojabuzu.pdfIn PDF document text
    • http://viwapuzajor.epizy.com/gabejujesaziwixovida.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/star_award_show_package_free.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/sosobunigudogesizudegedad.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/naxonivafetavetutubumewa.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/cbse_7th_grade_math_book_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/car_png_background.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/filemobagevebakepusiru.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/vitikewejamujer.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/guild_wars_2_fast_crafting_leveling_guide.pdfIn PDF document text
    • http://nunusama.rf.gd/la_problmatique_de_l_adquation_formation_emploi.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 8

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_off0000f3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FE 5344 bytes
SHA-256: 7f1edf64ee07db5b52a68711b6651e9f68738a357e1fe654dd7c9c76fb8c71b2
font_01_sfnt_off00010631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10631 10188 bytes
SHA-256: d794224f1875bca85838056e7ce6c357bb7de2e5d66360835a884a466f295f51

Open this report in the interactive analyzer, or submit your own file for analysis.