Malicious PDF — malware analysis report

Heuristics 6

• 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 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.
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://barrybbritton.com/uploads/1/3/0/5/130551089/130551089.html#condiciones+de+frontera+para+una+viga+empotrada PDF link annotation

  • http://drainclogremovers.com/uploads/1/3/0/3/130323624/tikakumebunuta.pdfIn PDF document text
  • http://bayanillc.com/uploads/1/3/0/6/130604433/lodoxirenis.pdfIn PDF document text
  • http://homebuyeredu.net/uploads/1/3/1/1/131164355/kexobojisaxedop-busagofakel-xoras-wavabumabulobob.pdfIn PDF document text
  • http://www.toclisa.com/uploads/1/3/0/8/130873828/fozasinugire.pdfIn PDF document text
  • http://www.charlesgerard.info/uploads/1/3/0/7/130740412/fixugutez.pdfIn PDF document text
  • http://incontextapp.com/uploads/1/3/0/2/130289448/90923984.pdfIn PDF document text
  • http://www.prwk.us/uploads/1/3/0/7/130738805/2133473.pdfIn PDF document text
  • http://www.gamerscashout.com/uploads/1/3/0/4/130483513/44cfa2b0.pdfIn PDF document text
  • http://dres-kitchen.com/uploads/1/3/0/4/130483817/3700503.pdfIn PDF document text
  • http://healimmune.com/uploads/1/3/0/4/130488332/pigusolakofag_zuzevi_xifitadijewu.pdfIn PDF document text
  • http://legendsdarkamusements.com/uploads/1/3/0/5/130550824/mepapijavurixede.pdfIn PDF document text
  • http://amurdc.com/uploads/1/3/0/8/130874639/9737069.pdfIn PDF document text
  • http://dribblefast.com/uploads/1/3/0/3/130323506/85934ede7597df.pdfIn PDF document text
  • http://lippincottllp.com/uploads/1/3/0/6/130639588/db5f0b1c9fdfc23.pdfIn PDF document text
  • http://southerncottongoldenretrievers.com/uploads/1/3/0/6/130604815/tovuwefova.pdfIn PDF document text
  • http://rubbntugg.com/uploads/1/3/0/4/130489800/zosuf_seveneguwavona.pdfIn PDF document text
  • http://www.sera-smith.com/uploads/1/3/0/9/130969546/jifonu_wunexejale.pdfIn PDF document text
  • http://wobe-photo.com/uploads/1/3/0/3/130379274/829590.pdfIn PDF document text
  • http://356bunkerhillst2.com/uploads/1/3/0/6/130604637/8135fd.pdfIn PDF document text
  • http://mobilpapershredding.com/uploads/1/3/0/3/130323116/8750516.pdfIn PDF document text
  • http://adamrichardsteachingportfolio.com/uploads/1/3/0/6/130620982/ace69ad6df220f.pdfIn PDF document text
  • http://hostmaster.handmadebysewyellow.co.uk/uploads/1/3/0/7/130740323/lapes.pdfIn PDF document text
  • http://denequia.com/uploads/1/3/0/2/130272472/lijorutireg.pdfIn PDF document text
  • http://nightbeforechristmasclassicedition.com/uploads/1/3/0/3/130313148/fddd4a38a8c58.pdfIn PDF document text
  • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.stixfonts.orghttp://www.micropress-inc.comAsIn PDF document text
  • http://www.stixfonts.org/user_license.htmlIn 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://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text
  • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
  • http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=OFLIn PDF document text

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