Malicious PDF — malware analysis report

Static analysis result for SHA-256 434817862fc8e2e8…

MALICIOUS

PDF

72.2 KB Created: 2021-02-21 18:42:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 166fc47a9f5b7c1285e2fddf2339f097 SHA-1: e2acc2905c1e0891931eaf3106102f62c9d3bdcd SHA-256: 434817862fc8e2e824acce120d3690935cfdfeaae37f260b712fcb259974a2a7
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://jottigo.ru/wix?keyword=great+smile+store PDF link annotation
    • http://autoupgrade.website/breath_of_the_wild_recipesbi9rn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393179/normal_603137293f491.pdfIn PDF document text
    • http://zupebupinumupo.iblogger.org/fewigujaraninadariwusavaf.pdfIn PDF document text
    • https://cdn.sqhk.co/gijimexuv/hgj8ihp/sleep_sounds_lite_relaxing_sounds_for_sleeping.pdfIn PDF document text
    • http://poverkavoda.website/negative_space_drawing_definitioni8owu.pdfIn PDF document text
    • https://cdn.sqhk.co/pimepojuti/z8jcRgd/offline_games_2019_pc.pdfIn PDF document text
    • http://the-job.ru/how_to_adjust_the_petsafe_collarv4y82.pdfIn PDF document text
    • http://mizolaresunade.iblogger.org/79210001212.pdfIn PDF document text
    • http://ttttrrrr.space/lista_de_medios_de_comunicacion_antiguos_y_actualesrk77k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mowiredeponup.rf.gd/zotawajezekapedixob.pdfIn PDF document text
    • http://vawolibosabope.rf.gd/runescape_magic_equipment_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/gubofasomakimajenudan.pdfIn PDF document text
    • http://wowinagapujepok.epizy.com/51948116594.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/xakapineguxofazigobedoba.pdfIn PDF document text
    • http://jopakete.rf.gd/sijoluzumebelisiter.pdfIn PDF document text
    • https://s3.amazonaws.com/dofufiri/anarkali_malayalam_movie_free_hd.pdfIn PDF document text
    • http://nejasixefunik.rf.gd/philadelphia_eagles_injury_report.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/6945314799.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_off0000e001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE001 4860 bytes
SHA-256: 1358e72872b504641b28d884d304a32f65b81b2096c442520468e7ffe958ccf3
font_01_sfnt_off0000f06f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06F 10328 bytes
SHA-256: 9871c61d775c26a262ce9a5e46930c3fb43bec343afaf576e0a5ebd5a5a1f716