Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f49bab65f9eaa4f…

MALICIOUS

PDF

71.4 KB Created: 2021-03-09 17:37:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 5456988255ec97ba5e48cd1df3e88862 SHA-1: 6d6d65ac876f1b1ed2c573957166b1d3de88c34a SHA-256: 8f49bab65f9eaa4f399299b89abffbcb883c1e437011b85ab3d3d48edc3188f8
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://nipisod.ru/wix?keyword=el+viaje+de+su+vida+book+pdf PDF link annotation
    • https://bijawodit.weebly.com/uploads/1/3/4/8/134883407/8434473.pdfIn PDF document text
    • https://durirumis.weebly.com/uploads/1/3/3/9/133999752/2de112157e8.pdfIn PDF document text
    • https://sapefita.weebly.com/uploads/1/3/0/7/130776655/katozekaka.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/sorogamat/chupke_se_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/aambala_video_songs_ultra_hd_free.pdfIn PDF document text
    • http://nuwadolonopip.onlinewebshop.net/15628167066.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/vavaz.pdfIn PDF document text
    • https://c5c27394-2042-4749-9b39-d1c24dcbd9f0.filesusr.com/ugd/e9b987_43f23fbec4624d518aff7d97dc5c5650.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/blue_eyes_video_song_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dda5d7f4-83d4-4ff9-b194-610e2fc66532/matin.pdfIn PDF document text
    • https://e26976e3-f089-44cc-a2a6-54bcc6cae308.filesusr.com/ugd/0df15e_2f7748ac8cb54623af0999a16429b316.pdf?index=trueIn PDF document text
    • https://c2267750-1f6d-4c2f-944a-eb302c7f07d7.filesusr.com/ugd/93971e_aced35ee172a43c38cd26f782d4e4843.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/75aedbdc-8c50-4c7d-81ca-9a81fb7f8a27/best_strategy_for_option_trading_in_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2e80413-8094-4563-bcb4-01be246ed5ee/garmin_nuvi_2639_battery_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/63148955002.pdfIn PDF document text
    • https://88211235-bf86-4d40-a6ec-a052db2f682e.filesusr.com/ugd/94e5ef_af9f4c640bed477c91ef1b0340cb24a1.pdf?index=trueIn PDF document text
    • http://buzumigasox.myartsonline.com/18163450677.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C9 5236 bytes
SHA-256: 894936bd5820cb6010c5e4df3b933e63fd0b23dfbaf51ee1049797cb5c931037
font_01_sfnt_off0000e8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B9 12100 bytes
SHA-256: bb930a06cbd4c43c1caeee07a45d2e82712721bb7f447b02739a87a515edb032

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