Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe48e44356eec4e7…

MALICIOUS

PDF

70.7 KB Created: 2021-03-03 03:24:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8a7f2f7d77232590e36f58a1f6b10205 SHA-1: bb4e007329a06d79106fbcb14ed9b471db6c75f2 SHA-256: fe48e44356eec4e7da70e949b6374fe859e1b36f8ff9c55a3eb48914c0ff1b00
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/award?keyword=how+to+setup+motorola+modem+with+comcast In PDF document text
    • http://luxasireku.sportsontheweb.net/who_manufactures_toro_snow_blowers.pdfIn PDF document text
    • http://zaxegod.getenjoyment.net/suxamokometelesuku.pdfIn PDF document text
    • http://zezasarasojid.mywebcommunity.org/best_english_swahili_dictionary_app.pdfIn PDF document text
    • https://cdn.sqhk.co/zolewiko/bA1EjQ7/mortal_kombat_9_jade_cosplay.pdfIn PDF document text
    • https://cdn.sqhk.co/lofakekaf/ikib4jh/mister_softee_ice_cream_truck_jingle.pdfIn PDF document text
    • http://zegererevez.medianewsonline.com/57267983148.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505096/normal_5fe845bd547ae.pdfIn PDF document text
    • https://cdn.sqhk.co/jipodipotaj/jjjgcgi/97880496159.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487431/normal_60321d690d22c.pdfIn PDF document text
    • http://simopuvoramawu.mywebcommunity.org/what_is_difference_between_short_and_long_report.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/nazekisigiduz/fonijojad.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/98019810086.pdfIn PDF document text
    • http://zirutabu.myartsonline.com/22197138052.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/marine_net_corporals_course_communications_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/what_is_exempt_from_fatca_reporting.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_off0000d761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD761 5368 bytes
SHA-256: 8ef3e9d6c26a40749b72f83a2048508183b4b198cbcea1132317d668f86ef756
font_01_sfnt_off0000e97e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE97E 10592 bytes
SHA-256: 09a38cd57eb94ddc39fa983bfb5ec7de54fe5cd3e523233bc2389290f7101b98