Malicious PDF — malware analysis report

Static analysis result for SHA-256 c516f1c73c23227a…

MALICIOUS

PDF

71.1 KB Created: 2021-02-20 06:58:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0cd5558cd9fba636ea622424d200878c SHA-1: 33158c5d099b5d360aa43d55efd49aa2df54abc1 SHA-256: c516f1c73c23227a88be0437d8948914c85c282b95125908b97d675ebae657bd
136 Risk Score

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
  • 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://leonvi.ru/wix?keyword=top-o-matic+parts+list PDF link annotation
    • https://cdn.sqhk.co/vedasukuki/hajbhdK/80303241668.pdfIn PDF document text
    • https://cdn.sqhk.co/paxepedamaxa/jcBz5jf/22628262425.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478127/normal_601a2f79a479c.pdfIn PDF document text
    • https://cdn.sqhk.co/retesixabe/RhiCgi4/duvitedamitujiguniko.pdfIn PDF document text
    • http://dovofebidoxi.iblogger.org/gejodilemuka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383451/normal_5fd12dbe72da1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367644/normal_6006a63cc8dfd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385413/normal_5fd632c11f879.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/jujadodedaruxix/employee_personal_details_form_template_nz.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/tonun.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/nccn_guidelines_endometrial_cancer_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/former_barcelona_coach_tito.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/bouwbesluit_in_de_praktijk_2012.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/jurudoladowijabari.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/bajagijesinageziv.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/1084419391.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/dabolagogorisugonidezev.pdfIn PDF document text
    • http://sitiwaruto.rf.gd/hydraulic_pump_pressure_differential_setting_guide.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_off0000d962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD962 5060 bytes
SHA-256: 5d9a26f590c225cc2e3c2d67e030c45939a810eca9bba6421ced7cfcd8a692dd
font_01_sfnt_off0000ea7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7D 10860 bytes
SHA-256: be815ea00cefecec2a764366e706d42b64d1b7131aea25c945ce4a8d885589a0