Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d598a7bab9cb7c0…

MALICIOUS

PDF

44.9 KB Created: 2020-10-29 05:45:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-11
MD5: 618cd5ccd1bccd17a220728ebd5f85bf SHA-1: dc0e4254e9c1f8d4e4c369dd3a8942409d894ed5 SHA-256: 0d598a7bab9cb7c03dfa8cadc9c74c1e4aa3237bea69af23636307e6327083af
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ggtraff.ru/strik?keyword=eastview+high+school+band In PDF document text
    • https://s3.amazonaws.com/wonoti/imden_bluetooth_fm_transmitter_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/13870306682.pdfIn PDF document text
    • https://kanexala.weebly.com/uploads/1/3/4/3/134374151/a243b9.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/kedeledukeno.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/zefupuf.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/advantages_of_technology_in_entrepreneurship.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/jaundice_diet_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/george_calinescu_enigma_otiliei.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/69457602881.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/l_adjectif_numeral_cardinal.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/back_pain_pregnancy_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/kekiburikinegarevuk.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/kambikuttan._net_cartoon_download.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/bullying_in_schools_articles.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/86319359202.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/present_simple_and_present_continuous_exercises_pre-_intermediate.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/titefagat.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/clinical_nutrition_assessment.pdfIn PDF document text
    • https://valetakomo.weebly.com/uploads/1/3/4/0/134012509/xutimu.pdfIn PDF document text
    • https://muvisodujop.weebly.com/uploads/1/3/4/3/134358588/2063623.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/wukor.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006c68.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006c68.bin)
    • https://cdn.shopify.com/s/files/1/0434/9699/7030/files/causas_de_esteatosis_hepatica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/2166/9816/files/personal_income_tax_canada.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 extracted file (font_00_sfnt_off00006c68.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C68 5356 bytes
SHA-256: 374dac10fcaae9cec955d17c9a2cd114da3b7cc5dc1e1627647f1314a5690004
font_01_sfnt_off00007eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB4 11184 bytes
SHA-256: bbfd1590ef14dfe7c483ad7ee09dc65eaa26e629a21ec74c4eedeb41599ed495