Malicious PDF — malware analysis report

Static analysis result for SHA-256 4edf8bfc80256c8d…

MALICIOUS

PDF

72.3 KB Created: 2021-02-20 10:16:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d9e0e1d40cf1101d33d708c2fb74f27b SHA-1: 80dd4037352f8df9a5e5dc289e2a25f766d2c737 SHA-256: 4edf8bfc80256c8da20f104fd2d1cde8ade936c24e77850817a2540bf9b66a80
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://jacksth.ru/wix?keyword=madalin+stunt+cars+unblocked+weebly PDF link annotation
    • https://cdn.sqhk.co/lolajelor/jf1njft/design_blogs_like_apartment_therapy.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/vpiiWVd/58877365433.pdfIn PDF document text
    • https://cdn.sqhk.co/tofegejij/hbibibc/pejusoforod.pdfIn PDF document text
    • http://govejulij.22web.org/mailbox_full_access_report.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381971/normal_5fdba6398ab35.pdfIn PDF document text
    • http://rekopeza.22web.org/gafimidejew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369522/normal_5ffcfe8a8d1bb.pdfIn PDF document text
    • https://cdn.sqhk.co/golizojuw/gihjOhf/holi_song_dj_mix_free_download_2017.pdfIn PDF document text
    • http://xuvaguwanolinu.66ghz.com/pumadaloto.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495244/normal_5ff879c5764fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475219/normal_6002952b2c980.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475570/normal_5fe98f70eedb7.pdfIn PDF document text
    • https://cdn.sqhk.co/jorisuzil/c6hddip/23033339338.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/pomaxa/what_is_another_word_for_remove_errors.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/torovozelobatakijokodek.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/35604271320.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/arietta_mozart_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/jesefuwuginimatolavuzafax.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/candy_crush_soda_mod_apk_android.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/42024667209.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/walogipajoxod.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_off0000df5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5F 5336 bytes
SHA-256: 606cd47b405e1a01b0cbfcafdc84580b5693da37e78de50a073166e98a9cd46b
font_01_sfnt_off0000f1b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B6 10372 bytes
SHA-256: 8c8af9a6311b655413e37140cdd1b97ae2ecfcb3c2900478930a63d08c89054a

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