Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://lapefobok.weebly.com/uploads/1/3/4/6/134663543/9894828925c.pdf.
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://nipisod.ru/strik?utm_term=instructions+for+completing+form+ds-11 PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4373997/normal_5fdae11544c3d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4426816/normal_6064deb5728ee.pdfIn PDF document text
  • https://lapefobok.weebly.com/uploads/1/3/4/6/134663543/9894828925c.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4384650/normal_600854c45e6b0.pdfIn PDF document text
  • https://static.s123-cdn-static-d.com/uploads/4492580/normal_60afed2d43cc4.pdfIn PDF document text
  • https://talogaxuzule.weebly.com/uploads/1/3/4/5/134596774/4796910.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391925/normal_60698daac6434.pdfIn PDF document text
  • https://kusajigoma.weebly.com/uploads/1/3/6/0/136036420/c4bbcc6f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4485580/normal_603614b0cd13e.pdfIn PDF document text
  • https://static.s123-cdn-static-d.com/uploads/4450248/normal_60b004aae6dbc.pdfIn PDF document text
  • https://pifelitasa.weebly.com/uploads/1/3/5/3/135350032/gofani.pdfIn PDF document text
  • https://rukutatonaneto.weebly.com/uploads/1/3/4/0/134012616/sepevavuja.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/53ba2248-e3d0-44cc-bb4c-541efe9242b9/sisalovovinisikesozij.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f7beecb-46a2-4698-b8ae-5547e302c3f7/how_to_be_a_licensed_electrician_in_nc.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/adffeff2-6411-483b-9f12-02a0e5497b13/how_do_you_heal_childhood_wounds.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/766100fa-188a-4339-aa44-a93c67914a4c/3_meters_above_the_sky_2_full_movie_english_subtitles_online.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3750e7d6-a0b1-4858-9427-4fbac7704a42/moultrie_xv_6000_reviews.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7e61b2fe-69fa-412d-8371-504952aeea86/34383269479.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2338712-128a-4de1-8e46-c003a51ae25e/does_punctuation_go_inside_quotation_marks_australia.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59fd6210-106c-4d6f-844e-98a372382095/briggs_and_stratton_ignition_coil_wiring.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

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