Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aeb12bf8735db2f…

MALICIOUS

PDF

68.9 KB Created: 2021-02-06 09:30:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a40899143580d45408840ff8f232ac94 SHA-1: 4ffa75810d0057fd8c311f21706b5668724ee5f8 SHA-256: 7aeb12bf8735db2f2bf8a601fa547d992566aa2895ca0afccc1f0bdae469f25d
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/aws?utm_term=grandstream+ucm6202+user+guide PDF link annotation
    • http://inscarusa.info/xebuzoxakisuzwnz4q.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/gdty4gc/science_laboratory_safety_symbols_and_their_meanings.pdfIn PDF document text
    • http://kulinar2020.site/43_chocolate_cake_recipes_for_beginnersofz05.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/bijjjVl/summer_dance_camp_stafford_va.pdfIn PDF document text
    • https://cdn.sqhk.co/latosagax/gfVibVc/8355409573.pdfIn PDF document text
    • http://creamwalls.online/poverupigatenebipupovem96g4.pdfIn PDF document text
    • http://vnds-v.website/descargar_libro_300_situaciones_dida71z4w.pdfIn PDF document text
    • http://mastericy-chistoty.ru/jumpstart_learning_games_downloadchn4f.pdfIn PDF document text
    • https://cdn.sqhk.co/bureruverog/ibKja7b/megalodon_size_vs_blue_whale.pdfIn PDF document text
    • http://robot3.site/crystal_reports_tutorial_jobbossgcxix.pdfIn PDF document text
    • http://distornyup.site/my_first_conk_by_malcolm_xymh48.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/e1ichhF/kidutekavij.pdfIn PDF document text
    • http://1yamal.space/16486651451w1pcv.pdfIn PDF document text
    • https://cdn.sqhk.co/mozoposowi/a2UWjhg/tiwafip.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/bifamomove/52433381064.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_off0000c529.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC529 5688 bytes
SHA-256: 5b43d96a48a29506604632c870582cc8325f49b533b2b6bf505ba81ed38ec756
font_01_sfnt_off0000d872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD872 14932 bytes
SHA-256: ac5a169ff0c07c94026757d1350c84f9559786dc50ca2942226c183a50f0faa6