Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceeef3e49e27f31a…

MALICIOUS

PDF

72.4 KB Created: 2021-02-26 14:53:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0d9ea7377526064634e340bbb95caf8e SHA-1: d94de643706040a6123fc8c0bb344a7a43989b11 SHA-256: ceeef3e49e27f31ad5fa11e3b00f2c16a26d9431ce139a388e19e8468fdf8cac
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://maypoin.ru/wix?keyword=physical+science+semester+exam+study+guide PDF link annotation
    • http://topfrag.rip/710780112676pv99.pdfIn PDF document text
    • http://moekolechko.icu/the_wolf_among_us_bigby_x_reader_lemonah7rr.pdfIn PDF document text
    • http://torchqbfl.fun/cognitive_behavioral_therapy_worksheets_in_spanishfq0lh.pdfIn PDF document text
    • https://cdn.sqhk.co/fapetemiji/gjf4jhR/76596324500.pdfIn PDF document text
    • https://cdn.sqhk.co/bijozugetav/jbiahjB/hd_camera_for_android_pro_apk_1._5.pdfIn PDF document text
    • http://nature-ital.space/inquisitor_martyr_psyker_skills1vlqm.pdfIn PDF document text
    • http://beremoter.online/whistle_blowing_policy_and_procedurevgw2k.pdfIn PDF document text
    • http://natgood.space/lg_g_pad_8.0_wont_turn_onnp3iw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382782/normal_5feb32206efdd.pdfIn PDF document text
    • http://it50off.info/47033258505h4gi6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408335/normal_602ab97fa1f34.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382196/normal_5fcfea609b91d.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/kijelopazekune/98059863311.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/4540352171.pdfIn PDF document text
    • https://s3.amazonaws.com/bomupi/jokijodaselepuvukow.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/blackjack_strategy_chart_hit_soft_17.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_off0000dd63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD63 5524 bytes
SHA-256: b7dc7ff49d1856e60e723261cf4107df890b2a0131e87a526a828a49a890decf
font_01_sfnt_off0000f011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF011 10672 bytes
SHA-256: 3f23647ee894972bac9ee560b2ec4fb4bcc830d2f8db484fe5c4e0f3c313d7bd