Malicious PDF — malware analysis report

Static analysis result for SHA-256 86756807c97966c1…

MALICIOUS

PDF

73.0 KB Created: 2021-02-27 08:19:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6960041f0765e8fa36422a9a36f9243f SHA-1: 2eb0b828bbf1aa00447dc4244487ac976fa999bf SHA-256: 86756807c97966c16184f059a50ef908383ff4380ed3c084c18ac9b9c3cd3b96
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/award?keyword=does+washington+state+have+any+travel+restrictions PDF link annotation
    • https://cdn.sqhk.co/pesuxitum/KibOhcS/feudalism_game_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450043/normal_5ffb8f83f1595.pdfIn PDF document text
    • https://cdn.sqhk.co/doxelatofon/1hghjiz/xotaki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462056/normal_602e59cc42083.pdfIn PDF document text
    • http://loxokunetuladi.66ghz.com/63021637511.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/XgjfhhV/pakistani_mango_chutney_recipe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448137/normal_6007fc6934ac9.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/busutafitufe/approaches_to_learning_pyp.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/34259765808.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/hot_rolled_and_cold_rolled_sheets.pdfIn PDF document text
    • http://motitagododef.epizy.com/i_am_that_i_am_tattoo_hulk_hogan.pdfIn PDF document text
    • http://tufebogepamik.rf.gd/libro_completo_de_fisica_general.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/flaxseed_meal_recipes_pancakes.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_off0000df99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF99 5316 bytes
SHA-256: ef945a51bb801960dbea42b94034f73613b6f994998edef74e010239d965ab5b
font_01_sfnt_off0000f1cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CD 10856 bytes
SHA-256: f240b72775835bd3b495b6526ac1b1d914303aa30b0e36c85c70051bc72d1577