Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c2b2b45f62f6319…

MALICIOUS

PDF

66.9 KB Created: 2021-02-25 18:23:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 25a1b5cda59decc2b066f28eb9cfa1a5 SHA-1: 49fcb2689c8d925846d90cb1934b9a76585e9e7c SHA-256: 4c2b2b45f62f6319193c954199f8e453e59253af56afd123a9d5148acae2d677
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://bologen.ru/aws?utm_term=how+to+program+a+chamberlain+universal+garage+door+opener PDF link annotation
    • http://heretythere.site/how_to_use_polaroid_onestep_2_timeresm2t.pdfIn PDF document text
    • http://hellesypakk.online/pieta_signore_c_minor9j9yx.pdfIn PDF document text
    • http://jikusofare.mywebcommunity.org/this_is_amazing_grace_by_phil_wickham_ft_lecrae.pdfIn PDF document text
    • http://nogurufegu.mygamesonline.org/20353860161.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/86184783844.pdfIn PDF document text
    • http://vipadobotisituz.mygamesonline.org/2447991503.pdfIn PDF document text
    • http://gojazot.22web.org/what_does_the_table_symbolize_in_hills_like_white_elephants.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wemazepiba.epizy.com/gaxomujagesawi.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/wobobewitorefilawapinoxub.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/friendship_quotes_in_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/padanivozeb/1059416509.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/kawadeji.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/effingham_performance_center_tesla.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/durixegunazorigeg.pdfIn PDF document text
    • http://xolavozezimodan.onlinewebshop.net/the_tattooist_of_auschwitz_movie_release.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/94035958561.pdfIn PDF document text
    • http://jiwabesufag.epizy.com/sobaka.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/buterusolux.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_off0000c956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC956 5740 bytes
SHA-256: fad589d5a7e7927ebb4073162a948e123d536aaa855f38d7a0c2e7c7516ab232
font_01_sfnt_off0000dcc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC5 9724 bytes
SHA-256: 451060611e250326a21943f9d5553b2fc102a86064a4905cd7717a61458ca648