Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d227e76039c4e05…

MALICIOUS

PDF

72.4 KB Created: 2021-03-02 00:40:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6d38c44d896da7a0114d3a11da48cef1 SHA-1: 70b373d14968fd1502c33230d5750459de005c48 SHA-256: 7d227e76039c4e053a1b87809835b6021336ec520ae7adbcfb9a099c7c9be476
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://baarspo.ru/wix?keyword=unit+3+worksheet+5+quantitative+energy+problems+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4462726/normal_602101a42b683.pdfIn PDF document text
    • http://soldonlittleton.com/powatimekugotaxawe0tn33.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453909/normal_5ffc6338077a9.pdfIn PDF document text
    • http://dlkmvkoenv.info/casio_g_shock_rangeman_replacement_bandhk8u2.pdfIn PDF document text
    • https://cdn.sqhk.co/mewixamok/iC6fcjc/dinosaur_running_game_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426261/normal_5ff684952b17d.pdfIn PDF document text
    • https://cdn.sqhk.co/jimikafede/djIuAhf/drift_zone_2_download_apk.pdfIn PDF document text
    • http://halfraire.xyz/8501313301658rfq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480898/normal_6009a062073fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379482/normal_5fdfa1b1a4ea4.pdfIn PDF document text
    • http://curvepreloved.com/aromaticity_in_benzenoid_compoundsd5i9x.pdfIn PDF document text
    • http://remontvorot24.com/bubble_fruit_costcorkc2a.pdfIn PDF document text
    • http://generatorsale.ru/nutujebuwevezekegifew4z1of.pdfIn PDF document text
    • https://cdn.sqhk.co/rowazazapa/ibNRihf/youtube_live_views_count_bts_on.pdfIn PDF document text
    • http://reliables.ru/69996569554hczh3.pdfIn PDF document text
    • http://nely.xyz/41922552440qlu15.pdfIn PDF document text
    • http://gogotmif.space/beropabv17m0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425209/normal_5ff563055d927.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dc32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC32 6096 bytes
SHA-256: 237b7ddd428035edb2ab68bbea723f86518259d492d4df4792dca003ad7d0169
font_01_sfnt_off0000f0ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EA 10332 bytes
SHA-256: 2937bde877c2c1e63afcd2c5185927a755ad028e744c806831aebdc4d9000983