Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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 http://frezerovka.by/images/fxeditor/file/25545546564.pdf In PDF document text

  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/hh2apm5r57rtm6pe33as92vbn1/75150933998.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6cba77dec---61666522240.pdfIn PDF document text
  • http://4reality.cz/userfiles/files/jenikubetexizababelex.pdfIn PDF document text
  • http://emachn.com//data/attachment/file/pidolewivobulivewewis.pdfIn PDF document text
  • http://tunglamgarden.com/images/fck/file/91283567483.pdfIn PDF document text
  • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/5250653cca9d0535c2ebe00592116d65/88827560920.pdfIn PDF document text
  • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100a3ff13071---11547073915.pdfPDF link annotation
  • http://podlahyadvere.sk/editor_uploads/system/files/letunum.pdfIn PDF document text
  • http://guchenes.com/d/files/petov.pdfIn PDF document text
  • http://allasclub.com/campannas/file/25154032346.pdfIn PDF document text
  • http://simkoongschool.com/uploads/editer/files/50123229765.pdfIn PDF document text
  • https://indolabtek.com/Uploads/userfiles/files/pewozomixusedol.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/mdpc7v59a09oi4s3tl5chk5kj7/96979150742.pdfIn PDF document text
  • http://eventechsite.com/files/files/lejesusavenifigeb.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16105558511118---nixejomazuxojed.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/dtn8r1u3a0k39kcmfmrgbam646/53088658290.pdfIn PDF document text
  • https://imotrading.com/images/userfiles/wivifuramotinelixabujama.pdfIn PDF document text
  • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/44bf7c791acc1399ad14fe7a153362c4/46837530404.pdfIn PDF document text
  • http://woods-china.cn/ci2/userfiles/files/20210621050720.pdfIn PDF document text
  • http://dream-mebel.com/pic/file/9783650698.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=hp+laserjet+1320+driver+windows+7+32+bitPDF link annotation
  • http://irodori.kir.jp/files/file/dujedifupine.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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