Malicious PDF — malware analysis report

Static analysis result for SHA-256 6132647893273127…

MALICIOUS

PDF

62.2 KB Created: 2021-02-19 08:27:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1307b19a2891dc3fcfbf24bcb958994b SHA-1: 1cbe7e02da67adaf8746e06c6cfb28ca869053bc SHA-256: 61326478932731274a5c5397314c4c2532de810dff680235d1b9065a77874f15
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/123?utm_term=let+us+go+contraction PDF link annotation
    • http://onlinetyz.xyz/wukateneduvatavorutybp60.pdfIn PDF document text
    • http://discount50.pro/78717998858i9tqy.pdfIn PDF document text
    • http://maxidadikegi.iblogger.org/bovujamotejusumefodonekot.pdfIn PDF document text
    • https://cdn.sqhk.co/beledufe/Exihd74/basketball_club_story_mod_apk_revdl.pdfIn PDF document text
    • https://cdn.sqhk.co/moxibusas/aNhh2ge/color_passport_photo_size_malaysia.pdfIn PDF document text
    • https://cdn.sqhk.co/rifelefiw/ibjWaO8/android_chrome_browser_video_downloader.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nifiloxoburufi.rf.gd/maple_tree_osrs_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/9785852141.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/bose_soundwear_manuale.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/free_printable_phonics_worksheets_grade_4.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/chemistry_corner_atomic_structure_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/afrofuturism_essay.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/84997503939.pdfIn PDF document text
    • http://golofup.rf.gd/bikers_kental_2_openload.pdfIn PDF document text
    • https://s3.amazonaws.com/goveruduzewoxu/crystal_reports_older_than_version_9.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/17482142122.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/31956123861.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/25786478268.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_off0000bae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAE4 4876 bytes
SHA-256: f80f1b437ed1247dd7250ac79feb1e5e47853eb614329be8a7ba28fe4093e849
font_01_sfnt_off0000cb8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB8E 9456 bytes
SHA-256: 95f6923afcf12fec639492dd67fa48f4f023caab229d39ee19f9c08bcd316057