Malicious PDF — malware analysis report

Static analysis result for SHA-256 511d4bf479e1ed98…

MALICIOUS

PDF

80.0 KB Created: 2021-02-16 10:32:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2faed5ee612eac324883b8f743e5bbfc SHA-1: 26239c248bb3ae4c273a5e92655b9fecf1faa592 SHA-256: 511d4bf479e1ed98b0183c80f2f6a3886229f36c0de384f3bfcca8f4c630f1ce
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wb?keyword=canon%20powershot%20sx150%20is%20video PDF link annotation
    • http://obzorov.site/13_things_mentally_strong_dont_do_downloadaz3v4.pdfIn PDF document text
    • http://drovazvenigorod.ru/21_day_fix_nutrition_planpw346.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451208/normal_5ff927452f6e3.pdfIn PDF document text
    • http://mirror-x.org/kofonetasisedaworosacu76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476142/normal_602b24c2075fd.pdfIn PDF document text
    • http://trokot-online.xyz/pofuxizakirosigidexavamigncar2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446158/normal_60076d903701c.pdfIn PDF document text
    • http://shop50off.info/gameweek_17_fantasy_premier_league_picks9z18z.pdfIn PDF document text
    • http://wide-mean.top/sda_church_songscp288.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470832/normal_6006527403684.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/dazutun/animals_name_list_english_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/47762201113.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/campaign_design-_planning_template.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/51147409984.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/rirujaketomodaro.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/tamilrockers_hd_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/72858083316.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/miduz.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_off0000fbab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAB 5456 bytes
SHA-256: d4433fe8013705aafd76c57dc471113be03cc500e94abdcf497c6cb7e33fd475
font_01_sfnt_off00010e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E50 11344 bytes
SHA-256: eb0091bebdbeba1253690a5f6bd2d5a9e0d274212f35aa8183c270c925d2509f