Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0cc1912f5040dff…

MALICIOUS

PDF

77.7 KB Created: 2021-02-22 02:30:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b96e880690647d9574ff85fc6cd96254 SHA-1: 0de73ad006dc454dd4ff36b9776e058759033076 SHA-256: b0cc1912f5040dffa396a57b0743b851e92d71573cd70c83c171c766a6b6b1bf
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/strik?utm_term=how+to+get+a+job+as+a+software+engineer+with+no+experience PDF link annotation
    • http://kozaredibedemok.iblogger.org/dj_arafat_jonathan_video.pdfIn PDF document text
    • http://batmbatm.ru/fasizagutalupiicl.pdfIn PDF document text
    • https://cdn.sqhk.co/nagubeze/j8IihbU/raxedilemeresurino.pdfIn PDF document text
    • https://nepuvojikonutoz.weebly.com/uploads/1/3/4/6/134677469/sofopepodagi-pufasaje-nuviwu-labirem.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/ajfgjhf/6873219036.pdfIn PDF document text
    • http://puzijebiwukixi.iblogger.org/video_creative_brief_template.pdfIn PDF document text
    • https://lotigasi.weebly.com/uploads/1/3/4/7/134705720/zolotavotuname.pdfIn PDF document text
    • http://item-get.top/additional_director_appointment_formr6hxo.pdfIn PDF document text
    • http://alifan.store/gabojodojabotijekukulidom0p913.pdfIn PDF document text
    • https://pinozawekik.weebly.com/uploads/1/3/4/5/134589254/zefimusefoguxez.pdfIn PDF document text
    • https://cdn.sqhk.co/lejukujegomi/ijdygcM/crossword_puzzle_books_for_elderly.pdfIn PDF document text
    • http://kadabafomelu.66ghz.com/seat_of_the_soul_chapter_12_summary.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/vanatul/fujelelok.pdfIn PDF document text
    • https://s3.amazonaws.com/sojenozap/benyamin_biang_kerok.pdfIn PDF document text
    • http://kupezoru.rf.gd/86133067662.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/98255780020.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/annabac_franais_2019.pdfIn PDF document text
    • http://vanabigura.rf.gd/d_d_5e_war_cleric_guide.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_off0000f22e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22E 5584 bytes
SHA-256: b28ba259857a3c36dd8536a9d6825d9dd0c0e0d6e5c385575c274da700dadb69
font_01_sfnt_off00010545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10545 10740 bytes
SHA-256: 2d71734c4d74d4e80c37a847b0ecd2dbd5961499b355c473d16bf3182cd47636