Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3495abbc2e0e12e…

MALICIOUS

PDF

76.5 KB Created: 2021-02-26 15:39:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 70bab8b7d27ef995209d5dba8c24f5e6 SHA-1: 43a976120aa79181a7b5c86135a7b75ae54eb096 SHA-256: d3495abbc2e0e12e17b378b286a5f602c8b862a33c19d6e5a4be0397132a2117
136 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
  • 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://zajinet.ru/123?utm_term=football+manager+2016+wonderkids+shortlist PDF link annotation
    • http://galoomer.online/34441358909tges3.pdfIn PDF document text
    • http://it50discount.pro/xubonosakizuzap6wg43.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/29195764181.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/manual_del_conductor_de_pensilvania.pdfIn PDF document text
    • http://microbestdigitalmeter.xyz/throne_of_glass_heir_of_fire_charactersg4gy5.pdfIn PDF document text
    • http://ribupisid.22web.org/engineering_lettering_guidelines.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/gdjjidp/5685909318.pdfIn PDF document text
    • http://wowuzarupi.iblogger.org/pevoleninivoxokenani.pdfIn PDF document text
    • http://bumumapa.mypressonline.com/2011_jeep_grand_cherokee_repair_manual.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/kosamupim/16352943861.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/kaspersky_antivirus_for_linux_free.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/converting_fractions_to_decimals_worksheet_grade_8.pdfIn PDF document text
    • http://tezegejal.rf.gd/39207601883.pdfIn PDF document text
    • http://tagugatukosag.epizy.com/41090791721.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/kuvadagupetemu.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_off0000ecf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECF2 5968 bytes
SHA-256: 7568e79520615fb4091b7cec0f528bcd00c3d6d38e8d2fae74bd1afe46358436
font_01_sfnt_off00010133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10133 10492 bytes
SHA-256: 4cd4e3e17a9c99ba51ac20ddb91e8ffa018acf4133ff28e9d8a21614febb1494