Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fab954e387a0b27…

MALICIOUS

PDF

65.2 KB Created: 2021-01-26 07:39:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: faaa78e63b1f71493a922091026711a8 SHA-1: 0b7de9df0ab4f9f251e544221ab53ef2f5f4e84a SHA-256: 9fab954e387a0b27686c1cbf771ad9cc5604feb24a25edefedbf44b0f54f45f8
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/wb?keyword=adidas%20yeezy%20700%20v3%20azareth PDF link annotation
    • http://hookup673.site/tipodafiws9.pdfIn PDF document text
    • http://genusadnlo.space/cars_3_full_movie_in_tamil21l3p.pdfIn PDF document text
    • http://letekidela.iblogger.org/kootenai_county_sheriff_accident_reports.pdfIn PDF document text
    • https://woziwapimarezex.weebly.com/uploads/1/3/5/4/135400795/6220159.pdfIn PDF document text
    • https://risegexof.weebly.com/uploads/1/3/4/6/134661868/lijusanu_wanovop_rubuzavaw_pibokazuwalige.pdfIn PDF document text
    • http://pegajopakazo.22web.org/darth_revan_event_swgoh_guide.pdfIn PDF document text
    • https://wosowabo.weebly.com/uploads/1/3/4/3/134340570/7747698.pdfIn PDF document text
    • http://idealica-ufficiale.site/48182277664tq3pw.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/novifamigot/90266353326.pdfIn PDF document text
    • http://badiwofotafazol.epizy.com/up_b_ed_admission_2019_online_form.pdfIn PDF document text
    • http://nedajazamofo.epizy.com/odia_movie_blackmail_all_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/volunteer_agreement_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/past_simple_form_of_the_verb_choose.pdfIn PDF document text
    • http://lulojoduvos.epizy.com/venewon.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/carti_de_apicultura.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_off0000bc70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC70 5468 bytes
SHA-256: 9cf299477f01175c55f1283bcc0ba05d33e6fc59be2a83b867f1159d53306139
font_01_sfnt_off0000cf1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1C 13972 bytes
SHA-256: 3706f55fc7f12eb149a3a2b6a306505f17eac6184fc2d8e18b8a1a4f8d0bc7d0