Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5910895e13b757…

MALICIOUS

PDF

66.4 KB Created: 2021-02-11 08:46:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6d51a4fc8cd5601b82e3535f794517c8 SHA-1: 45adec81f510b59c6d2fef4da3a21a66d49b17fa SHA-256: 7d5910895e13b75793cf807c0d7e1c275d50f6e630a4b25eab0ea42f4fedeaed
144 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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://jacksth.ru/wb?keyword=agar.%20io%20android%20tv PDF link annotation
    • http://mynasert.online/80712026291u406t.pdfIn PDF document text
    • http://fredo.bike/nurani_quran_with_bangla_translationnpw78.pdfIn PDF document text
    • http://instup.xyz/pet_stores_in_findlay_ohionndhs.pdfIn PDF document text
    • http://regsenatvumen.website/2164079543qechz.pdfIn PDF document text
    • http://salearea.pro/72949053956wu09r.pdfIn PDF document text
    • http://itwomen.space/45240678374sz5i7.pdfIn PDF document text
    • http://biomaniix.website/95494031451ifjxm.pdfIn PDF document text
    • http://vykupavto54.ru/zowopil3rzf.pdfIn PDF document text
    • http://blue-tick-central.com/wewababugetamaom8op.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/figugipopar/thanking_letter_format_for_donation.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/30451090339.pdfIn PDF document text
    • http://fopevuvowixapa.epizy.com/catheter_related_uti_guidelines.pdfIn PDF document text
    • http://fujebudavitasoz.epizy.com/ipcc_report_2019_plant_based_diet.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/39449022496.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/baixar_gratis_quem_pensa_enriquece.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/41480534914.pdfIn PDF document text
    • http://sovizaz.epizy.com/paxotakotok.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/bisulefaxi.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_off0000c9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9BB 4864 bytes
SHA-256: e78f84bbd4a3da3e399fadc51ed19b6d41db9c4741921a26159206e9e1e054bb
font_01_sfnt_off0000da64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA64 10092 bytes
SHA-256: bf5f418576884a5d19a22f80de35f039a993773b2200a364ad6d19a8868b7c65