Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a5bfcf260c23795…

MALICIOUS

PDF

70.3 KB Created: 2021-02-16 10:38:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 36abf9252173098391dd492a8a87b217 SHA-1: 675658612ab40dbb861ea6303486749746395b2d SHA-256: 5a5bfcf260c2379537998d01b20fe2461bb2953af71a9fed71f4b6a975483837
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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/wb?keyword=model%203%20long%20range%20rwd%20review PDF link annotation
    • https://cdn.sqhk.co/vakusukereju/ifjcQgc/clash_of_clans_wikia_records.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/jaifieN/fitutop.pdfIn PDF document text
    • https://cdn.sqhk.co/bekutojeke/iejhjic/vertigo_exercises_mayo_clinic.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwebobit/jFhgjcJ/88129073581.pdfIn PDF document text
    • http://jujanaxuwiroki.iblogger.org/idrivesafely_defensive_driving_texas_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/JcdTnjc/pejapesavirisako.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/altistart_48_manual_espaol.pdfIn PDF document text
    • http://nasipitizu.epizy.com/logiciel_fusionner_creator.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/6880714101.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/48848090388.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/83559358748.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/new_bengali_movie_free_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/77494903237.pdfIn PDF document text
    • http://koburolamugalo.rf.gd/2279924657.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/wabuvedajosanigakaveduto.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_off0000d794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD794 5136 bytes
SHA-256: 8e2aaf069ef95568276cc888fabeadbc6530c060576d128bf88e56b0e39d2305
font_01_sfnt_off0000e941.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE941 10348 bytes
SHA-256: 20e9729e9ca2fd4f3a2ec415217809f8d9d49583bc34b7b94fd8369aaacde974