Malicious PDF — malware analysis report

Static analysis result for SHA-256 d148d71c62a830ae…

MALICIOUS

PDF

73.4 KB Created: 2021-02-16 13:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: f11339e9a35804ee4af3c059571f439f SHA-1: 22869602e2970289a699622d3fb29a84d33c0035 SHA-256: d148d71c62a830ae80b0a6e043f995b87ab902d3734609a8c9c2e129e54c56eb
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/strik?utm_term=microgramo%252Fl+a+mg%252Fl PDF link annotation
    • https://wezenazuzive.weebly.com/uploads/1/3/4/7/134764498/nosofiwefinubaxet.pdfIn PDF document text
    • https://nikubasixuza.weebly.com/uploads/1/3/0/7/130738960/4a0de6f52dec.pdfIn PDF document text
    • https://balixilime.weebly.com/uploads/1/3/1/3/131398392/gukitedodi.pdfIn PDF document text
    • https://nunamifeko.weebly.com/uploads/1/3/2/7/132740424/ramadijirupogez_defoxalisu.pdfIn PDF document text
    • https://cdn.sqhk.co/kavejufa/eIjjSgc/2347891019.pdfIn PDF document text
    • https://cdn.sqhk.co/poronujefino/eue45gd/fantasy_hockey_phil_kessel.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/tikoweravisixu/printable_august_2019_calendar_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/74508246287.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/bodmas_fractions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/63178243646.pdfIn PDF document text
    • http://sujemitusosida.epizy.com/13700900280.pdfIn PDF document text
    • http://bukogog.epizy.com/new_square_enix_games_android.pdfIn PDF document text
    • http://jevazebi.epizy.com/papiv.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/matofutumipedomanu.pdfIn PDF document text
    • http://zenomidesedi.rf.gd/autodesk_maya_lt_2019.pdfIn PDF document text
    • http://dunoziboxisi.epizy.com/doxojexepuwadinafedo.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/genegojomob.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/investment_asset_classes_explained.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_off0000de77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE77 4980 bytes
SHA-256: 4b5eadf174295270d8d78aa97fce38f9f568f4163549b04a66001c3b6d3b0d3c
font_01_sfnt_off0000ef65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF65 12272 bytes
SHA-256: 98cdc02f267ac3982626a6ae4838f008a38507fb351c9b211400db85aaf9bdad

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