Malicious PDF — malware analysis report

Static analysis result for SHA-256 c06932c8922d1d7c…

MALICIOUS

PDF

69.8 KB Created: 2021-02-18 01:25:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 72f606c41e00198ac49577ab1078ecb2 SHA-1: ed3110408d52d6109c73bf2d60152d2031cfed2e SHA-256: c06932c8922d1d7c4db670ecf10e67494f49947c5289cd8349489e4e5b64f49e
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=rise+of+nations+extended+edition+download+windows+10 In PDF document text
    • http://remont-kholodilnikov.website/bovirokitezovebafuzorogew8z3gi.pdfIn PDF document text
    • https://cdn.sqhk.co/fotinegataso/njggjdB/ea_sports_ufc_mod_apk_rexdl.pdfIn PDF document text
    • http://worldthailand.fun/607777607715mgvh.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/z2cd8gf/81403202310.pdfIn PDF document text
    • http://vipmanmarket.space/solving_exponential_equations_and_logarithms_worksheet339sl.pdfIn PDF document text
    • http://itdomen.fun/acnl_approval_rating_guidewdf2d.pdfIn PDF document text
    • http://pixxel.life/encyclopedie_des_plantes_mdicinalesaqbxt.pdfIn PDF document text
    • http://bobr.space/wupobujavomamiv1h08w.pdfIn PDF document text
    • http://msertis.xyz/pakusegomi8sw.pdfIn PDF document text
    • http://buloshnaya.site/interview_questions_for_employers_templatecesxp.pdfIn PDF document text
    • http://jilet1.club/32782398496vavzd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458829/normal_601778f13a22e.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/lazolu/sap_fieldglass_time_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/11916046841.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/35935221811.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/cps_kentucky_reporting.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_off0000d3bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BC 5164 bytes
SHA-256: 2b4b2c6cec4aa5d7bcd245b670624998baa16598dc5ea88beed27c7823caac7a
font_01_sfnt_off0000e583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE583 10644 bytes
SHA-256: 4b5f2b36215ed5d14a5e78fa4d82acccde14ae89106fe92dd9804263f445d982