Malicious PDF — malware analysis report

Static analysis result for SHA-256 951b1edb80e5f8bf…

MALICIOUS

PDF

70.3 KB Created: 2020-12-30 05:26:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 7f72af4d14c44b365dd8bd23407cc53a SHA-1: ab875887ff4af030485306a65d8e5756d09be51e SHA-256: 951b1edb80e5f8bf5dc5a2887c8de8c529a701bd0988a8284747fba50d7c0d54
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://trafftec.ru/123?utm_term=nickelback+gotta+be+somebody+lyrics PDF link annotation
    • https://cdn.sqhk.co/rotogogoji/jeNhfig/space_engineers_xbox_one_workshop_not_working.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393359/normal_5fc1f540f19b3.pdfIn PDF document text
    • https://cdn.sqhk.co/navolakolire/SaIjcl0/29_card_games_apps_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wovegase/jjikii7/yuva_defence_academy_in_hyderabad.pdfIn PDF document text
    • https://cdn.sqhk.co/jememobak/aPbjjos/dialogflow_cx_agent.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371505/normal_5f8b950be1fc4.pdfIn PDF document text
    • https://cdn.sqhk.co/nezusoxe/gfFwheK/chicken_poop_and_compost.pdfIn PDF document text
    • https://cdn.sqhk.co/tumozaraf/EHRvlgd/printable_coloring_pages_for_adults_funny.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384155/normal_5fea3abcc0dac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419193/normal_5f95fdd22df9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414176/normal_5f98813cb4cb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370064/normal_5f8864bf7593b.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/841b9990-d11d-4ac1-bf8b-f97a6b6ca386/marizafotomowat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd2fa4d5-2286-4628-bdec-9ec71436fec8/29670544727.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cb16345-9282-44d5-9233-6760c7e1e9f4/goldeneye_n64_rom_europe.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_off0000d706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD706 5532 bytes
SHA-256: 3c82f081802c982c3760c92d2166741ae2efba0e2c6baf9b1a6dbee37bbca72e
font_01_sfnt_off0000e9cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CD 10332 bytes
SHA-256: 68120bab05f67ff9506f22a280ebf6b3816c6e559129ea6e82e7aef66ab05762