Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eb7f085ff327657…

MALICIOUS

PDF

63.4 KB Created: 2021-01-29 09:24:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f7fc0b9d65196aae6ce53b0ccf125b10 SHA-1: d49a16f4cd55ae47f97612d393b4067b25ad94c6 SHA-256: 4eb7f085ff3276574a90ef8390a0407babf678796d82a48be7787decdeb9674b
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://maypoin.ru/wb?keyword=catfish%20nuggets%20recipes%20pan%20fried PDF link annotation
    • https://cdn.sqhk.co/pofaxiniraz/ag8Vgdb/dwight_eisenhower_ww2_strategy.pdfIn PDF document text
    • https://cdn.sqhk.co/kizusuvut/daigfii/labetunigozuseja.pdfIn PDF document text
    • http://moymagazin.xyz/war_world_2_movies_2019gdj47.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/iicicCr/micro_mechanic_engine_light_check_wireless.pdfIn PDF document text
    • http://onlinekartiadesi.com/lizikidavev1h2hy.pdfIn PDF document text
    • https://cdn.sqhk.co/xobadata/basOhiH/18694939245.pdfIn PDF document text
    • https://cdn.sqhk.co/pegipoveridi/amjcUFc/31733388977.pdfIn PDF document text
    • http://kir.center/happy_bear_virtual_pet_game_mod_apkr1xri.pdfIn PDF document text
    • https://cdn.sqhk.co/gowexenopa/hcjgeji/kolusorif.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/ggigihg/6915414422.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/farezelof/dexevififezobaro.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/chitra_vichitra_bhajan_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/tamilrockers_2014_tamil_full_movies_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/88943448661.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/newsday_crossword_puzzle_answers_today.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_off0000bb92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB92 5292 bytes
SHA-256: a9c2f505a79e4d71e2d1d8062dbde1bf8847fe8be33e87695dff0c13ba010375
font_01_sfnt_off0000cd8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD8D 9780 bytes
SHA-256: 19740d5a27eea273deff83d99f8451242a2bf1b6b090447fee7f7fef8c13fe07