Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c480673fbdf87f…

MALICIOUS

PDF

71.0 KB Created: 2021-02-18 01:37:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 55cdb1093e7df06904b764129191edb2 SHA-1: ece444e97a94a8ec8212b0ad6a0cdd1a880c8438 SHA-256: 46c480673fbdf87fb9b0fe298d3420a88171c15922f03a7d02fd889726f6e6fb
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://druttle.ru/wix?keyword=biology+staar+test+2014+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475728/normal_600a4514aa800.pdfIn PDF document text
    • http://helplnstagramcontact6088758.com/lefolodegupigazeluvurikuf6brfc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414174/normal_5ff6a8ff24990.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/fjeXhaE/dan_the_man_hack_apk_download.pdfIn PDF document text
    • http://lnstagramservicecopyrights.com/26610560907mp2c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486742/normal_6011342c253ed.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/gcggEcs/brazil_football_team_images_download.pdfIn PDF document text
    • http://psychologyrelax.xyz/download_farm_invasion_usa_mod_apk3afuv.pdfIn PDF document text
    • http://indital.fun/alien_vpn_apk_uptodown0bj2h.pdfIn PDF document text
    • http://bcpzonasegura10beta-viabcp.com/windows_10_pro_free_download_64_bit_with_crackvxj3x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366354/normal_5fc690d8bbedd.pdfIn PDF document text
    • https://cdn.sqhk.co/rigidaluta/5iiihpX/89614089705.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/qtdghgh/plex_windows_app_slow.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/firudegix/bavox.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/fupilofokajolorafikuviwox.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/are_chinese_lanterns_illegal_in_ohio.pdfIn PDF document text
    • http://fosixokosed.rf.gd/air_pollution_information_in_marathi_language.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/android_google_maps_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/bevutixiriduvasunefarane.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/zufik.pdfIn PDF document text
    • http://mirepili.epizy.com/grid-_template-_columns_auto_auto.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_off0000d87c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD87C 5508 bytes
SHA-256: c7a46310ffb687e831cba6999adf7845a9d138bc831f092db76cb0513a453354
font_01_sfnt_off0000eb6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB6F 10400 bytes
SHA-256: 442bfa210dab9a0ad9a43fe6e0dab4afaf7dade10f7664e662414d27aa5e215e

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