Malicious PDF — malware analysis report

Static analysis result for SHA-256 22d5b42652846a00…

MALICIOUS

PDF

74.9 KB Created: 2021-03-06 10:01:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dfbb57b4be304cd61abd446f863ef1ee SHA-1: 46a27a0ffc7a08319db26b1131f88d9670d8d836 SHA-256: 22d5b42652846a00433044238fbfb015be24cb8e2147a4b4799bda38a81cf475
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://botokaw.ru/wix?keyword=alcohol+denat+chemical+formula PDF link annotation
    • https://cdn.sqhk.co/woxutonezem/ibGpjeX/gujetepurepoduputiniweku.pdfIn PDF document text
    • http://doorstepcomputers.com/525897727788ul0w.pdfIn PDF document text
    • http://crystal-light33.ru/vetuvofupuwiladisedipdnbvu.pdfIn PDF document text
    • http://virutimi.22web.org/846034413.pdfIn PDF document text
    • https://cdn.sqhk.co/pimepojuti/d62hhdv/wetojelovupuro.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/duUNgh3/ver_fox_sports_mexico_en_vivo_online_gratis.pdfIn PDF document text
    • https://cdn.sqhk.co/kajipazuto/hZibhaZ/food_business_name_ideas_generator.pdfIn PDF document text
    • https://cdn.sqhk.co/lakanodip/FY2gigf/bokokonesi.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/ghZ6WrE/zakolirorilar.pdfIn PDF document text
    • https://cdn.sqhk.co/piravasufinu/YelijDP/packers_bears_2019_highlights.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/74f30d4b-734b-4490-8ba8-03a8ec854225/xoxakajixeju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe84fa91-fe1c-49d2-a8de-d292d44eb83f/where_are_the_covid_cases_in_florida_by_county.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c9b1732-ec4f-4c86-8745-838807ae117a/how_to_change_my_voicemail_on_my_samsung_phone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b37896e-e1c5-4089-9900-0403da551771/how_to_reset_honeywell_thermostat_th5220d1003.pdfIn PDF document text
    • http://zalezir.epizy.com/fofoxaguvul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bba6314a-0b94-4f9d-a513-b32084b7fefb/axxess_aswc-1_steering_wheel_control_adapter_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3835ac4-92e9-45c0-9d6d-e959042bfa0d/amana_commercial_microwave_call_service.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b2c69b0-fc30-444e-8387-bfdf7300bdd6/para_que_sirve_la_vitamina_d_con_magnesio.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_off0000e8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FE 5072 bytes
SHA-256: 1ad1b5eeb84e3c51166b0f2095b51ac7bfecb78f9df0524c3199dbf282bc8193
font_01_sfnt_off0000fa14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA14 10700 bytes
SHA-256: b0b3fb4c05e110f7fda36753a60e44e703a8db2572ccbbe170164ce764ba2a0c

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