Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a5af845aa051c41…

MALICIOUS

PDF

73.2 KB Created: 2021-02-26 11:47:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5455bcc21a3bc4dd6ecacde89b9d6427 SHA-1: 63b28c0290a026642abdac394e3bea4f74a2bc64 SHA-256: 5a5af845aa051c4136a003a4d2a16628ed6a35795c2058b07788c409aabb6bcc
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://baarspo.ru/wix?keyword=jerry+o+sullivan+motors PDF link annotation
    • http://price-list.moscow/fodalawajurikue.pdfIn PDF document text
    • https://cdn.sqhk.co/xonudutixova/hojijhj/island_of_adventure_orlando_park_hours.pdfIn PDF document text
    • http://logoped-samara.ru/preterite_car_gar_zar_worksheet_answersn5eni.pdfIn PDF document text
    • https://cdn.sqhk.co/kojanakif/jieicgc/kaji_family_twins.pdfIn PDF document text
    • http://zesamoa.online/mobile_home_coaches_for_sale_in_floridapzu74.pdfIn PDF document text
    • http://trickyturkey.com/bulbul_kannada_movie_song6a77k.pdfIn PDF document text
    • http://cmbclientes.com/71193998467axqua.pdfIn PDF document text
    • http://securespot.ru/nozajapowomaderopelaxmoqh.pdfIn PDF document text
    • http://mmmuuuue.space/5870228947bg5a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pixagikaw.epizy.com/power_systems_engineering_salary_in_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/91675305113.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/potuvegaroxavefokinud.pdfIn PDF document text
    • http://duzoxugulof.rf.gd/bapugadafulowuje.pdfIn PDF document text
    • http://jedekikubo.epizy.com/how_many_cards_does_a_tarot_deck_have.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/lefarosurakitejosumi.pdfIn PDF document text
    • http://wipidomi.rf.gd/hotmail_email_app.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/resulagogaruwoturem.pdfIn PDF document text
    • http://livukuxuperum.epizy.com/backless_short_formal_dresses.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_off0000da51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA51 4980 bytes
SHA-256: 49cce471c6400fd3daa5406cab29f3e954b0689f4d4b9803abc42612cdcd2a9a
font_01_sfnt_off0000eb3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB3A 14528 bytes
SHA-256: 0d48a4a11448f2e404b3c3f900fc66e99c82e47540b550fb81373bd6d5216031