Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be9f270b5f0e6a5…

MALICIOUS

PDF

66.0 KB Created: 2021-02-15 20:59:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 825af911aaee5741a06acbf04f28aab2 SHA-1: 0e460a31daf6d72c3be3b0c648f49d3c47a8b4c3 SHA-256: 5be9f270b5f0e6a5203ffaa00222eae41219f12e16841209b66022f52d2768f3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://bologen.ru/wix?keyword=glencoe+physical+science+outline+answer+key PDF link annotation
    • https://bixikobitil.weebly.com/uploads/1/3/4/5/134525497/vafujerukewil.pdfIn PDF document text
    • https://vaxudiku.weebly.com/uploads/1/3/4/7/134709892/2a34f59d.pdfIn PDF document text
    • https://cdn.sqhk.co/vasegodesazu/gYjhBhQ/xixibafopuxoregedut.pdfIn PDF document text
    • https://vovamujif.weebly.com/uploads/1/3/5/3/135318660/nekafolewuden.pdfIn PDF document text
    • https://xibemorebag.weebly.com/uploads/1/3/4/3/134355918/4bcc3bc389.pdfIn PDF document text
    • http://fitness-ital.fun/bojulilewigimunelisu9kjom.pdfIn PDF document text
    • https://menudapopejit.weebly.com/uploads/1/3/0/7/130775932/4195246.pdfIn PDF document text
    • https://tovibibuxajewen.weebly.com/uploads/1/3/5/9/135968099/d391606401.pdfIn PDF document text
    • http://idealica-ituficiale.website/google_form_sign_in_sheetp3s2q.pdfIn PDF document text
    • http://storeeuro.info/6980233971000arc.pdfIn PDF document text
    • https://cdn.sqhk.co/dimumaneda/crjigmt/35769494788.pdfIn PDF document text
    • https://segawalapuk.weebly.com/uploads/1/3/4/9/134902876/suket.pdfIn PDF document text
    • https://sufojise.weebly.com/uploads/1/3/0/7/130739234/susixe.pdfIn PDF document text
    • https://cdn.sqhk.co/lemusezilaz/hby8gCZ/batenaxama.pdfIn PDF document text
    • https://fogurasetaj.weebly.com/uploads/1/3/5/9/135961985/98df9b5a.pdfIn PDF document text
    • https://wozalaro.weebly.com/uploads/1/3/4/3/134326714/wavurad.pdfIn PDF document text
    • http://latencfsrt.space/manager_for_macb9l2o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kiganume.epizy.com/39077355664.pdfIn PDF document text
    • http://tokavazeweg.epizy.com/indraprastha_school_paschim_vihar_admission_form.pdfIn PDF document text
    • http://dipuvomefig.epizy.com/supply_chain_management_process.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5D2 5312 bytes
SHA-256: b41791cbd043584a2bcf2076acfcde52c632491d137b14f02d3cab6e6c2cf2ed
font_01_sfnt_off0000d7f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F9 10088 bytes
SHA-256: c9b5929164518fa8a2a0258a0a5a3902511d4d2f3cb32daf43b441435c008825

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