Malicious PDF — malware analysis report

Static analysis result for SHA-256 f62acca016f0685b…

MALICIOUS

PDF

68.4 KB Created: 2021-03-04 17:51:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 69f386b35df053fffe0c5b8854ceec31 SHA-1: 282daf3e9612e2d4768f56c8d368af279efae8d8 SHA-256: f62acca016f0685b50340763eb5f64d3908686e4f99a8dbcb2a0efe4b055a6f1
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://lozipotod.ru/wix?keyword=kota+the+dinosaur+for+sale PDF link annotation
    • http://sakhavto.ru/dan_brown_books_on_orderj9608.pdfIn PDF document text
    • http://beststudent.space/hells_vengeanceh8f05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368978/normal_60192b32452c1.pdfIn PDF document text
    • https://tajafakedebufu.weebly.com/uploads/1/3/1/4/131438499/nizimepokuram-lajejibima.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380867/normal_60239ea6b4fd7.pdfIn PDF document text
    • https://xuvifadeto.weebly.com/uploads/1/3/2/6/132682806/penunexopizawejim.pdfIn PDF document text
    • https://lobogisotu.weebly.com/uploads/1/3/4/8/134870795/9dccd9d1d9.pdfIn PDF document text
    • https://wireluxibesoz.weebly.com/uploads/1/3/4/4/134402736/napekonigut_vogapavibirem_rosezovemazara_bofasidakifukob.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/gedexim/kemerejapaburoz.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/canned_baked_beans_nutritional_information.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/snow_forecast_portland_oregon_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/is_vampire_diaries_a_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86df8090-a0ee-4014-aa1d-ff0529d96b2e/offline_map_navigation_live_gps_locate_explore.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/report_reckless_driving_raleigh_nc.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/7293369907.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3705dda-4857-417e-ac3c-10eec9cc1cfd/collier_merrill_net_worth.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf174dd4-babc-4b5e-adab-96bbdc884fd0/what_does_public_speaking_anxiety_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/examiner_report_ntu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cd35db3-9504-4478-baa1-c40c05c4fc6e/ronaw.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/anesthesia_workstation.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/baidu_antivirus_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/pegerunefaxisizoni.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_off0000ce78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE78 4964 bytes
SHA-256: e20fa127ee6033e02335cba4391ea843139731ea9bca80d7a9020151a7ffdb0d
font_01_sfnt_off0000df58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF58 10692 bytes
SHA-256: 45a44c565a835bf2052d6ba6b380b5c5df427b82a52febe05866f75f5626a0cb