Malicious PDF — malware analysis report

Static analysis result for SHA-256 70cbb8a3c483b302…

MALICIOUS

PDF

72.5 KB Created: 2021-03-04 00:15:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0fefe4d5b4a51174f18447bd4b6cddbc SHA-1: 9580c25960316b18d8e60ab8a9fc8bbaa5f1a7fd SHA-256: 70cbb8a3c483b3026475ea0e509f3420dbeeabccad6248b3384f7a1c337502d3
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/wix?keyword=trimble+access+2018+user+guide PDF link annotation
    • http://italywom.space/suxalariem9x2.pdfIn PDF document text
    • http://gokawojop.scienceontheweb.net/98110935993.pdfIn PDF document text
    • http://nuloriwilorij.scienceontheweb.net/reinforced_concrete_design_textbook.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/e9Cgcij/fun_bowling_ideas_for_adults.pdfIn PDF document text
    • http://jotusuwes.iblogger.org/wabiwejizapixirixema.pdfIn PDF document text
    • https://cdn.sqhk.co/giravopakiw/NjbwOgh/41248815412.pdfIn PDF document text
    • http://organize.shop/banned_bollywood_moviesj1w9j.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/ja0nLhc/superhero_academy_jumpchain.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/lunojol/1421109967.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/chicco_keyfit_30_infant_car_seat_weight_and_height_limit.pdfIn PDF document text
    • http://vofofoduwegakuv.rf.gd/jedejukuvugafebo.pdfIn PDF document text
    • http://suwedafi.epizy.com/how_to_use_viper_remote_start_on_manual_transmission.pdfIn PDF document text
    • http://bajupigirosinaf.atwebpages.com/the_selection_book_1.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/soxoxepobited.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/nazogomuwuforu.pdfIn PDF document text
    • http://wurudoxozu.rf.gd/kyocera_3552ci_manual.pdfIn PDF document text
    • http://fajenadiwizowo.atwebpages.com/cant_access_night_owl_remotely.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/service_excellence_award_template.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_off0000dd20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD20 5868 bytes
SHA-256: 2dc533c2fad19ce9aecb0d1f47d9f2eff9cd73f5b955adc716f737c06871f2da
font_01_sfnt_off0000f0f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F6 10488 bytes
SHA-256: 9c5d122b36a017b2ec2f5dcabdc74149ff262cd821a6479e86a0478d767bed78