Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f8e5111de6ed622…

MALICIOUS

PDF

71.2 KB Created: 2021-02-17 08:37:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 581ae09474a73ecb91f47a3b8eb65c6d SHA-1: f314d704a84adcfbc5cb09a3984f64f94a94d3bf SHA-256: 2f8e5111de6ed622ad1f0d6f0dc210bf4a6c867da2eb7ec9e789d6bae1022007
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/wix?keyword=mad+electricity+worksheet+answers PDF link annotation
    • https://cdn.sqhk.co/tevotapomow/ieb7AR5/enhypen_vlive_download.pdfIn PDF document text
    • https://majabowuji.weebly.com/uploads/1/3/6/0/136092793/mulixobolisedogumena.pdfIn PDF document text
    • http://reduslim-buy.site/funexusobaziritufeo2p4g.pdfIn PDF document text
    • http://stankoff.org/bilaspur_university_ma_private_form00tfh.pdfIn PDF document text
    • http://gatorama.fun/labyrinth_of_the_witch_guide1eql7.pdfIn PDF document text
    • https://cdn.sqhk.co/mejofiwog/gqMhaRX/xexowipowuwagir.pdfIn PDF document text
    • http://ujjjrrrrr.space/remembering_satanhnz30.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/pisik/sonomusol.pdfIn PDF document text
    • http://monigadukuze.rf.gd/22761267252.pdfIn PDF document text
    • http://xerivigop.rf.gd/dafita.pdfIn PDF document text
    • http://jawegoxizifiti.epizy.com/mehrangarh_fort_audio_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/xipubame.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/allah_ke_bande_full_song_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/41850813894.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_off0000db04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB04 5292 bytes
SHA-256: 6cce01d871703ca83901329af9b552414d88f7cfae34a8ed41685ab2c5b53800
font_01_sfnt_off0000ed1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED1D 10080 bytes
SHA-256: 87c4a30d22e965e1f096aa272d03b275931f60c2091f741452fde9098dd3d154