Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9568ef793702e1…

MALICIOUS

PDF

62.6 KB Created: 2021-02-13 05:04:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 71d185573b2eca51f7d6662985dff3ae SHA-1: ae56b13bcc2f9b98aad003a277bafb2b07dfba0e SHA-256: cb9568ef793702e1b416034a0fea7c23f1daecdf4d46460a2ac388740a3e1085
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://jottigo.ru/wix?keyword=everyone+needs+compassion+lyrics PDF link annotation
    • https://cdn.sqhk.co/bumogebiz/inrw7XJ/dino_robot_megalodon_dinosaur_game.pdfIn PDF document text
    • http://hhizmet.com/paguzovolobiwagalulukividr4.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/hgjeBEg/gmail_app_edit_contacts.pdfIn PDF document text
    • https://cdn.sqhk.co/kavejufa/okVhggd/58095706252.pdfIn PDF document text
    • http://savetewolixoful.iblogger.org/fejitigasafa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461523/normal_5fdd5fae65087.pdfIn PDF document text
    • https://cdn.sqhk.co/xagogudexo/hdifPUn/download_chatous_mod_apk_unlimited_coins.pdfIn PDF document text
    • https://cdn.sqhk.co/pojuwudedi/Yjfqhfj/lebara_international_sim_card_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/jopubelo/e6jdlgh/24985058093.pdfIn PDF document text
    • https://cdn.sqhk.co/ribobujir/ieu9hdQ/raven_audio_nighthawk_vs_nighthawk_carbon.pdfIn PDF document text
    • https://cdn.sqhk.co/sezelijimofi/qpWgh0F/mars_mars_compatibility.pdfIn PDF document text
    • http://beautysss.site/29639458874jw966.pdfIn PDF document text
    • https://cdn.sqhk.co/jenetuwuda/jj8jihf/9817177976.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000b9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9B2 5340 bytes
SHA-256: adb4de90baf33ee91b3b08c59b87c57d5fa9c3fe25f43338d38d5d20347566b8
font_01_sfnt_off0000cbd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBD6 9964 bytes
SHA-256: 6cc33d68089e9e4695bd8df2ff2342b9ba1c87ba873a7447646510c15f9f0316