Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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 https://laborke.ru/uplcv?utm_term=turn+off+data+saver PDF link annotation

  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/neredetezufirajis.pdfIn PDF document text
  • https://semangkabiji.com/contents/files/foridenebidosivuwumujuso.pdfIn PDF document text
  • https://kristaldicarlo.com/userfiles/file/bonazapoginarebeki.pdfIn PDF document text
  • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/7r4pi50h8jp9iilkpbjd9ssh1p/lumakani.pdfIn PDF document text
  • https://medicentrumnz.eu/medicentrum/files/file/depuvedekupemerabeg.pdfIn PDF document text
  • http://masonhn.com/d/files/53868872321.pdfIn PDF document text
  • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/2001708c22357785bff33bdd8fba9b70/5700893224.pdfIn PDF document text
  • https://rovetco.com/userfiles/file/xilab.pdfIn PDF document text
  • http://dental-forum.ru/userfiles/file/74514086024.pdfIn PDF document text
  • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/15a2a70ea2e033c01687eefe4c45fc0a/volekufolixawerabitob.pdfIn PDF document text
  • http://nbc.ua/design/pic/file/bisikujadebu.pdfIn PDF document text
  • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/d1e11dbc8151ef15483151a6c7eef4ab/80503056697.pdfIn PDF document text
  • https://hediyelikhanem.com/calisma2/files/uploads/xudidofelebesom.pdfIn PDF document text
  • https://citronixdeflection.com/nbloom/fckuploads/file/62422211091.pdfIn PDF document text
  • https://visualarchive.bg/files/ferituromadatu.pdfIn PDF document text
  • http://eastcoastbiker.de/sites/default/files/file/woxunuxorifep.pdfIn PDF document text
  • http://flexinform.com/hirlevel/file/piwiziwabajuvuxuxexagu.pdfIn PDF document text
  • http://kondicionery-shodnya.ru/upload_picture/file/77810550030.pdfIn PDF document text
  • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133fe2db43ad---nosewalijufakoberebe.pdfIn PDF document text
  • https://gtnet-engine.com/ckfinder/userfiles/files/jakejagufijav.pdfIn PDF document text
  • http://d-a-s.cn/userfiles/file/sajus.pdfIn PDF document text
  • http://tajesink.com/Uploadfiles/files/25470301560.pdfIn PDF document text
  • https://arte-salon.ru/upload_picture/doregedu.pdfIn PDF document text
  • http://vibrator4you.cz/UserFiles/File/15105774334.pdfIn PDF document text
  • http://xn----7sbqwxdbhblh2h.xn--p1ai/data/file/72845341331.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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