Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d9100d0bac291a1…

MALICIOUS

PDF

68.0 KB Created: 2021-02-14 16:20:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 07dada9b0f188d83b1aa29d378563eae SHA-1: dfb9ae2d3489aa7acc9022e84f4574efa21e57bb SHA-256: 9d9100d0bac291a17eeba69de269dcbc7a3987ee8521ccf2215e03037cd5db23
136 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
  • 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=2005+toyota+rav4+repair+manual+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366304/normal_601ac8fe1e7ed.pdfIn PDF document text
    • https://cdn.sqhk.co/sivojadirabe/aeUihNB/16151053059.pdfIn PDF document text
    • http://rotelebi.22web.org/engineering_design_process_worksheet_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466151/normal_6010b30536ac2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365584/normal_5ffd0cb53898c.pdfIn PDF document text
    • https://cdn.sqhk.co/masunidupag/gOOjikl/maze_runner_2_plot_spoiler.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/mjciD82/98402850276.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/5YjfheL/bihar_bijli_smart_meter_customer_care_number.pdfIn PDF document text
    • https://cdn.sqhk.co/zonurubo/cjNibhb/moomin_pop_bubble_tea_bar_ari.pdfIn PDF document text
    • https://cdn.sqhk.co/pemenixa/Aieghgj/house_life_3d_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425211/normal_5fe8497ea2832.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374537/normal_600103abc034a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424682/normal_5fecc8897de5c.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/ajfjcji/zewigovegukuxaf.pdfIn PDF document text
    • https://cdn.sqhk.co/fematixub/aVAhhl0/mufiberoninux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467915/normal_600fa3d32028b.pdfIn PDF document text
    • http://kibizife.iblogger.org/ijazat_song_status.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nusilelopalal.epizy.com/guidelines_for_food_assistance_in_ohio.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_off0000cc19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC19 5652 bytes
SHA-256: 1543c0a7d65b46fdea09b4e05006d5ab0d2b8b9a8c89c1c1828970491798b36a
font_01_sfnt_off0000df70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF70 10264 bytes
SHA-256: 91fcfd1f183d952f0b542f42bf80fcb9006a4cf52bff259f4f795e9cd3b9c901