Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc005a2b953eac70…

MALICIOUS

PDF

70.3 KB Created: 2021-02-24 19:00:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2066e5d6213d0c942b3052fc1e0e2685 SHA-1: f420035ad71247a4aaaf2b6b6e72ad5dbfaf7f71 SHA-256: fc005a2b953eac70f47e84c18c8d7eb5454010a85fd9660206921dd6dfe3bfe6
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/award?keyword=nasb+macarthur+study+bible+2nd+edition+premium+goatskin+leather PDF link annotation
    • https://cdn.sqhk.co/nezerozara/krjaMhF/kekfeed_best_memes._funny_pics._infinite_kek._com.pdfIn PDF document text
    • https://cdn.sqhk.co/guzikiku/gdgdijD/11822610897.pdfIn PDF document text
    • http://vuxokiwi.22web.org/birthday_photo_collage_maker_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/hwSPRib/911_drift_driving_simulator_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367268/normal_5ff481136621a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386092/normal_5fd722355c62b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475208/normal_5fcf399c7e94f.pdfIn PDF document text
    • http://tijudozi.scienceontheweb.net/corsair_commander_pro_setup.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/14.3_water_pollution_answer_key.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366034/normal_5fea02b2aec88.pdfIn PDF document text
    • https://cdn.sqhk.co/posebozej/fQmsCjV/runitusofevapajidu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dinimonubikajo.rf.gd/field_guide_to_appropriate_technology.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_off0000d30e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD30E 5896 bytes
SHA-256: 821ed4cb059b20f48f3a209bbdef441e8f1161f955b329e1d9b881d03035e71e
font_01_sfnt_off0000e6fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6FE 10984 bytes
SHA-256: 8e0dcdb519756b4c3032222143e1f93f1b94a817186fa054fea073c48c210003