Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb8468d92b0566e…

MALICIOUS

PDF

64.2 KB Created: 2021-02-25 13:32:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7ac5c40f52ae2148a65cae0cf54b94cf SHA-1: 4789998422bc400c2e9236b6971a95723703c315 SHA-256: afb8468d92b0566ed6bfa17c6dadf1a45f5e305946eed3da1fcacb316dbcb9e0
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://jottigo.ru/award?keyword=winchester+model+12+takedown+manual PDF link annotation
    • https://cdn.sqhk.co/fafujedajir/djguNgd/the_hangover_music_soundtrack.pdfIn PDF document text
    • http://betixisu.22web.org/xaxetavuburexikufeloga.pdfIn PDF document text
    • https://cdn.sqhk.co/wazafanez/ZI8heig/photo_editor_app_download_apk.pdfIn PDF document text
    • http://romeoplanet.club/electronic_component_cross_referencekh0i1.pdfIn PDF document text
    • https://cdn.sqhk.co/volinafi/hahbW9S/raspberry_pi_2_i2s_pinout.pdfIn PDF document text
    • https://cdn.sqhk.co/jabuvilir/dgd9h6R/squadron_bullet_hell_shooter_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dexizajifu/idOhbjg/jackbox_party_pack_2_review_xbox.pdfIn PDF document text
    • https://cdn.sqhk.co/xotosobupis/hjjT7hi/most_popular_ringtones_for_android_free.pdfIn PDF document text
    • https://cdn.sqhk.co/kinanekoxo/ajbBidy/67935492065.pdfIn PDF document text
    • https://cdn.sqhk.co/numexerab/iijFeSg/jidudabidamemimedipemub.pdfIn PDF document text
    • http://vuvuga.xyz/1693844144rn51i.pdfIn PDF document text
    • http://thecabinets.xyz/nikiditikovulezorepaziguw0ozqf.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/sikuva/2017_amc_12a_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/pepiledexewaxegila.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/year_3_literacy_worksheets_uk.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_off0000bd7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD7D 5532 bytes
SHA-256: 14ad12cd8bfcf689bde496ca83e1933edd077e18af061f2305ef07ae32089078
font_01_sfnt_off0000d036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD036 10016 bytes
SHA-256: af0bdde1b426e343281edc54cffc5b90e08cc99b8966a33f1d35206132db5202