Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb052529a9b48af6…

MALICIOUS

PDF

69.8 KB Created: 2021-02-26 06:50:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5684db196de042fee7425a3d418c937a SHA-1: 8f17faed4908ddbd60da32327bf480d80ebf6ea8 SHA-256: eb052529a9b48af6d0ae4124ea42840ba292f346719416bec0ce9b757d7a0aa1
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=magic+vestment+pathfinder PDF link annotation
    • http://egosikenclub.com/85623543731qxuak.pdfIn PDF document text
    • https://piwutevuxave.weebly.com/uploads/1/3/4/8/134891910/zozabizekuvemukedeg.pdfIn PDF document text
    • http://vkysnaya-eda.site/skype_for_business_basic_201697srb.pdfIn PDF document text
    • http://nebolitazezo.iblogger.org/joinville_brazil_weather_report.pdfIn PDF document text
    • http://zikewexer.scienceontheweb.net/bedemexekamatesuvaguga.pdfIn PDF document text
    • http://optarfes.com/does_text_messaging_affect_writing_skillsve5gf.pdfIn PDF document text
    • https://kukonugaxa.weebly.com/uploads/1/3/5/3/135327287/pesanojegokawej.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/88948878799.pdfIn PDF document text
    • https://pimumurex.weebly.com/uploads/1/3/6/0/136027953/lelifemu.pdfIn PDF document text
    • https://supimoxu.weebly.com/uploads/1/3/5/3/135319300/5142709.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/tixeligufokup/dictionary_cambridge_english_grammar.pdfIn PDF document text
    • http://rukotig.rf.gd/korean_alphabet_writing_practice_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/atomic_timeline.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/android_tv_flash_player_browser.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/noxivumadexiloxenima.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/comic_book_squares_template.pdfIn PDF document text
    • http://jovavajes.epizy.com/18911448415.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/bash_synonym_formal.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/82455990809.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/guitar_chord_books_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/79819755946.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_off0000d4ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4EA 5600 bytes
SHA-256: e41a9c58b610741ca5a840c418a45a5d21a8bc224ab10820cbba0a7837ead78d
font_01_sfnt_off0000e7e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E5 10072 bytes
SHA-256: 46bc804f42d67382eaab2371c5aa97ab7193d823a4180041ab1ae98536f99f8c

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