Malicious PDF — malware analysis report

Static analysis result for SHA-256 56926843806b9a74…

MALICIOUS

PDF

72.9 KB Created: 2021-02-17 17:51:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: db2e8187539a42a462c48e35bad61708 SHA-1: fa0a49703bbd4246ea82b9ab1f713d8da4176f24 SHA-256: 56926843806b9a747fea7d652bb68175a55598cdbde541d776f93927b37bcecb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/123?utm_term=que+es+pragmatismo+y+ejemplos PDF link annotation
    • https://cdn.sqhk.co/kusedesomawa/dhajdmM/petonuwudazel.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/8lS73pA/grand_us_police_prison_escape_game_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486963/normal_5ffb47bbbb233.pdfIn PDF document text
    • https://cdn.sqhk.co/ruperodu/rjflWP7/flaming_throwing_knife_warzone.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/jhbiffP/luke_combs_lyrics_quotes.pdfIn PDF document text
    • https://cdn.sqhk.co/tavanaru/f2jChhC/kinasuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/ridasozewe/jdicUhf/teleportation_definition_synonyms.pdfIn PDF document text
    • http://tedewirivotu.iblogger.org/rexufatitizakajigug.pdfIn PDF document text
    • https://cdn.sqhk.co/zaweniwefi/chemhbL/84782748458.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/fuzafuzeruwit/supply_chain_management_ebook.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/renanediwibinowawezavixo.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/4000605018.pdfIn PDF document text
    • http://fosixijikalapi.epizy.com/migowibemulininesevuwura.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/measuring_units_worksheet_answers_9th_grade.pdfIn PDF document text
    • http://tibibexubedumu.rf.gd/calibre_reader_free.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_off0000debd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEBD 5376 bytes
SHA-256: 15989e8e3bf2efd090dc5ea017e91241cfbab49434a768c0ee79f0b12301cff6
font_01_sfnt_off0000f0fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FB 11572 bytes
SHA-256: d6172f0ccdb25880ba8fd9defcec993f858aa5824b5bcd95e2b7a2b3bfcc3404