Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe8d647db08320b…

MALICIOUS

PDF

72.7 KB Created: 2021-02-15 23:03:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 54ebb6b297b87da46ddc90c390bb183f SHA-1: d6f6f70b314146a048db3c497755020f671dfb5b SHA-256: 1fe8d647db08320b0ac85ebdd07ebbf85167500c8d399f9bebded48d1266c9ee
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/123?utm_term=garmin+vivoactive+3+replacement+band PDF link annotation
    • https://cdn.sqhk.co/mofipife/ha7hcje/buwodagolata.pdfIn PDF document text
    • https://cdn.sqhk.co/xedaberetaj/ig2jeMN/38283632147.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485705/normal_5fd6de7a70102.pdfIn PDF document text
    • https://cdn.sqhk.co/pibepufas/jbFLHrF/tixibokopalewuginomelunof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370530/normal_6023f1e33e661.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380411/normal_5fc88e4ce331a.pdfIn PDF document text
    • http://semengergel.ru/lego_hidden_side_fire_truckyf1be.pdfIn PDF document text
    • https://cdn.sqhk.co/rerunagakiz/3jfYgi4/free_streaming_music_videos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454055/normal_5fed22f9aac9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368976/normal_5fcc0894ee649.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471455/normal_5fca8ebdda5bf.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/zidahaG/gardenscapes_2_collector_s_edition.pdfIn PDF document text
    • http://goloszauniver.fun/lokatajozjijyh.pdfIn PDF document text
    • https://cdn.sqhk.co/tofigidukug/hitOoZO/98240903859.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://remigesej.epizy.com/50413733782.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_off0000df6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6F 5436 bytes
SHA-256: 7c1c3eebb83722d9c80bfff68a65370b8b24569243ac5b63f39a4c714f529e46
font_01_sfnt_off0000f1d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D8 10604 bytes
SHA-256: 041165340a89e2f9d325239fda1a30cc330a42f1ca957fdbfe2a2ea95c895456