Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• 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://noithattamphuong.com/upload/files/24617763423.pdf In PDF document text

  • http://nationalherbo.com/userfiles/file/38681371378.pdfIn PDF document text
  • https://mujetuzavos.weebly.com/uploads/1/3/4/2/134266282/2027536.pdfIn PDF document text
  • https://www.v-investor.ru/kcfinder/upload/files/podonalofu.pdfIn PDF document text
  • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/3am9qn78nisf8kfa1q5okdf4s5/lixulufefufixator.pdfIn PDF document text
  • http://databaze.glaukom.cz/upload/files/wafunesupop.pdfIn PDF document text
  • https://faremuxonebaw.weebly.com/uploads/1/3/4/5/134598019/c0a6432.pdfIn PDF document text
  • http://iba.chemolak.sk/userfiles/file/39304668995.pdfIn PDF document text
  • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/890b7281c21a23a.pdfIn PDF document text
  • https://vufodasab.weebly.com/uploads/1/3/4/6/134639116/gulobilekejovajes.pdfIn PDF document text
  • http://copy-office.it/userfiles/file/67563811448.pdfIn PDF document text
  • https://zipelademijup.weebly.com/uploads/1/3/4/0/134017001/pazabokurala.pdfIn PDF document text
  • https://nedosadowizo.weebly.com/uploads/1/3/5/3/135347652/6168199.pdfIn PDF document text
  • https://wenakewijota.weebly.com/uploads/1/3/4/6/134611788/givafopofidix.pdfIn PDF document text
  • http://cen7dias.es/userfiles/files/saxusot.pdfIn PDF document text
  • https://tipuvativojodud.weebly.com/uploads/1/3/4/7/134754547/9173499.pdfIn PDF document text
  • http://bona-brickmachine.com/d/files/96832103666.pdfIn PDF document text
  • https://wulelosen.weebly.com/uploads/1/3/5/9/135992808/00eeda85133ea8.pdfIn PDF document text
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/5f703c5b8e0edae04b36b8e3fe354ba9/45473560806.pdfIn PDF document text
  • https://likoxijisopo.weebly.com/uploads/1/3/4/4/134460370/xunikubatu-xevula-kebopafisog-limir.pdfIn PDF document text
  • https://telonilinip.weebly.com/uploads/1/3/6/0/136050587/lugofowek.pdfIn PDF document text
  • https://bexoligimes.weebly.com/uploads/1/3/4/3/134314561/4630389.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1624dd349bba67---61064917822.pdfIn PDF document text
  • https://stradatextiles.com/upload/ckfinder/files/bulapowirizezor.pdfIn PDF document text
  • https://podar.co.za/YmrXLWy8?keyword=libro%20fisica%20serway%207%20edicion%20vol%202%20pdfPDF link annotation
  • https://clarkfamilybuilders.com/home/clark/public_html/ckfinder/userfiles/files/mivuzigukugawojirela.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 extracted file (font_00_sfnt_off0000c2e0.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c2e0.bin)

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