Malicious PDF — malware analysis report

Static analysis result for SHA-256 d369a2355141af4d…

MALICIOUS

PDF

74.7 KB Created: 2021-03-06 12:36:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fff5a8011b3157435e51f8a53a2178f9 SHA-1: 3830a745749b47e7d1b4eb7933b2477c0ae7a968 SHA-256: d369a2355141af4d32d1afb87ba1a06f5ef438c7425275708ada6c4fb93d72cb
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://maypoin.ru/123?utm_term=battletech+miniatures+catalyst PDF link annotation
    • http://kivikevakefum.22web.org/carrier_inverter_aircon_remote_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379718/normal_5fdcb1d7e3a44.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379377/normal_5ff434ff77801.pdfIn PDF document text
    • http://pivojowemetobiv.mywebcommunity.org/48645116143.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/vavabi/full_form_of_aol_in_computer.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/employee_id_card_template_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/whatsapp_video_call_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/lagefasabarovojegamo.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/92763676591.pdfIn PDF document text
    • http://zevofelajasuz.epizy.com/32051078859.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/colorn_colorado_este_cuento_aun_no_se_ha_acabado_pelcula.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/purble_place_game_apk.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/john_deere_48_mower_deck_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/platform_shoes_70_s_fashion.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/33502640525.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/85586483969.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/bootstrap_admin_template_simple_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/gokukebetapabo.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_off0000e526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE526 5192 bytes
SHA-256: b2f8905b5cba42528ed438cb68541fb550f64987a8a554c53f4be9f874723832
font_01_sfnt_off0000f6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A2 11544 bytes
SHA-256: 591f225a3f8b5686b58af9948d26c8e4b885b485701e7cb6edc386f5300b79e0