Malicious PDF — malware analysis report

Static analysis result for SHA-256 f32ecc992f4ab3aa…

MALICIOUS

PDF

70.2 KB Created: 2021-02-02 23:54:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 3dde696c93f8bced33a2b7cbaa0398c3 SHA-1: 3573e0fa613dd7b6e09eae0f21f34b1791207efd SHA-256: f32ecc992f4ab3aaf93e70b24e38985c8dd95e3038bafe61d9244f12c42d5aec
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/aws?utm_term=wrong+turn+all+movies++dual+audio In PDF document text
    • https://cdn.sqhk.co/nutakurij/KE3Ihcr/tasuridenapesokogex.pdfIn PDF document text
    • http://gufutaca3.xyz/21583250273akop4.pdfIn PDF document text
    • https://cdn.sqhk.co/feduvefas/NasicHV/lisokufusudag.pdfIn PDF document text
    • https://cdn.sqhk.co/wanaxowuwot/iFGjaFG/fakogenifagusej.pdfIn PDF document text
    • https://cdn.sqhk.co/lexijunibul/5OiejdR/free_stuff_without_surveys_or_participation_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/gabazumad/jaibRif/88450067253.pdfIn PDF document text
    • https://cdn.sqhk.co/wafixagi/RpjifuR/two_finger_gun_hand_sign_meaning.pdfIn PDF document text
    • http://runmasten.online/3820020960xftxv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412379/normal_5fdd784059f26.pdfIn PDF document text
    • http://metalllift.ru/best_music_of_the_70s_80s_90s9ajud.pdfIn PDF document text
    • https://cdn.sqhk.co/teganipuputu/iX066lN/kaloxarekigimevoninu.pdfIn PDF document text
    • https://cdn.sqhk.co/bozutebux/eLQh3ha/exoskeleton_definition_biology_sentence.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/xufaxoferugod/icloud_unlocker_v2._zip_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/seburotogig.pdfIn PDF document text
    • http://tagugatukosag.epizy.com/concept_of_economic_efficiency.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_off0000d83b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD83B 5220 bytes
SHA-256: 099d7d0a98417abd091b3765211ed2e632d816e51dee01c4a0e91da4b7a68c4d
font_01_sfnt_off0000e9f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F6 9912 bytes
SHA-256: 6367809620229d26f298ca6f6d3fd1fab9686e2706db44e66d2365f181100cd0