Malicious PDF — malware analysis report

Static analysis result for SHA-256 94730be53a25049a…

MALICIOUS

PDF

71.6 KB Created: 2021-02-01 02:13:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ac70cca9623d1cdbca9737834cff2df4 SHA-1: eca597571deb8953cf214cbf070b29a56bec6f61 SHA-256: 94730be53a25049a8e983025532749ae4445181717d070455fec180b3a3d7c14
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://jottigo.ru/aws?utm_term=algebra+questions+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4471484/normal_5ff8b277b71e1.pdfIn PDF document text
    • http://sell-toclick.online/gabikorikumifotufuzotuwg5iyl.pdfIn PDF document text
    • http://7lessons.website/63352040731hmtyz.pdfIn PDF document text
    • http://1xbets-regs.site/7082125660294npu.pdfIn PDF document text
    • https://cdn.sqhk.co/jepivitixiwo/4ididgd/htc_one_how_to_backup_photos.pdfIn PDF document text
    • http://cloudmarket.website/dimensiones_montacargas_cocinalzfrm.pdfIn PDF document text
    • https://cdn.sqhk.co/ponesigis/igOSaif/super_arcade_racing_full_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385410/normal_600551e392485.pdfIn PDF document text
    • https://cdn.sqhk.co/pafevola/tjdm2Jb/toon_friends_matching_game.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxumududu/MVXshbj/spirit_halloween_san_antonio_tx.pdfIn PDF document text
    • https://cdn.sqhk.co/lamikolo/hcifqRs/download_screen_recorder_with_facecam_and_screenshot_capture.pdfIn PDF document text
    • https://cdn.sqhk.co/kedilexele/bicjeHe/radiant_floor_heating_boiler_installation.pdfIn PDF document text
    • http://gta-msk.ru/tube_video_downloader_apk_for_iphone_free6rd4k.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/hhgiehb/ufc_254_khabib_vs_gaethje_predictions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377909/normal_5ffe9417ba21c.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_off0000d8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A0 5464 bytes
SHA-256: d06a37f01ceb2baa74c018635c4d62b92b83925c82e554787dd8bb4176376ba3
font_01_sfnt_off0000eb38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB38 11528 bytes
SHA-256: 95cd71eda20e387b89bdddff1c693ea238de8c292d8ce2b07d3188287922c91f