Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ea1f4a10bf606e…

MALICIOUS

PDF

70.6 KB Created: 2021-02-22 09:07:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7c85e7d3c6e8cccca33826666bfde9b0 SHA-1: 3c67c37479645963e1418b6609729faefe028696 SHA-256: 80ea1f4a10bf606e10ff9e5afccd4d74890df522a19b030afc106a3594916685
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/123?utm_term=speedzone+sport+wireless+manuale+italiano In PDF document text
    • http://delaem-sami.online/dnd_5e_book_of_ancient_secretshdyot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366632/normal_5fc66440cd65e.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/uSgjHig/newborn_kitten_care_kit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467975/normal_5fe69066052a2.pdfIn PDF document text
    • https://cdn.sqhk.co/mowezeto/WjiojjO/jurassic_world_the_game_pc_steam.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/gAijhip/soccer_balls_in_fortnite_battle_royale.pdfIn PDF document text
    • http://goodsun.space/diferunesuzidarepzqwjb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451018/normal_5ff5ffd251bd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472501/normal_5ff1f7fa5a960.pdfIn PDF document text
    • https://cdn.sqhk.co/divekezor/hegicLr/dragon_land_theme_song.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/esiaCkA/47298465271.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405922/normal_5fca12dec8ed6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vabizawez.epizy.com/lofuzuwusegapagudenalizid.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/baby_scanner_camera_apps.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/kapivobuk.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_off0000d6e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6E2 5348 bytes
SHA-256: d23fba80b4d9908a93c4a8966ebbe5d8c874f7ea6cb2738b498c0cc072612c9a
font_01_sfnt_off0000e90e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE90E 10668 bytes
SHA-256: d9af107360473950a48c911156c4753e7dec6415bb63f595f1bd947727f12a87