Malicious PDF — malware analysis report

Static analysis result for SHA-256 661b572a02d0675d…

MALICIOUS

PDF

63.4 KB Created: 2021-02-11 23:38:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d579aae5c57f81b802d1fe5e7e4ec791 SHA-1: 134ebbe1fc12ee038e688578e6fa75866dadbe46 SHA-256: 661b572a02d0675de09291431d46bfd866840b60846af181ee63591d4b919a83
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=c20+coconut+water+upc PDF link annotation
    • https://cdn.sqhk.co/wosepimi/9TtFmig/play_free_city_car_driving_simulator.pdfIn PDF document text
    • http://idealicaitalia-official.site/fusijexunrv9b.pdfIn PDF document text
    • http://yourlivehelp.com/tamasha_full_movie_hd_filmywapb7v74.pdfIn PDF document text
    • https://cdn.sqhk.co/muxigatatini/9iz5bia/road_rage_font_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/hlgg4gi/pijalovixoledupenaxutebi.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/hbnuLkk/all_animal_sound_name.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476445/normal_5fcbd7583fa31.pdfIn PDF document text
    • http://reactivascotia2020.com/picsay_pro_mod_apk_uptodown3n51m.pdfIn PDF document text
    • https://cdn.sqhk.co/rosivapixove/jqFlhgE/75668022218.pdfIn PDF document text
    • https://cdn.sqhk.co/modajili/tjjnphg/tangled_castle_drawing.pdfIn PDF document text
    • http://sy0n.icu/coulomb_law_in_vector_form_class_12xygn4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367299/normal_5ff66b1560003.pdfIn PDF document text
    • http://raifaisentgo.online/temple_escape_heroiczyifg.pdfIn PDF document text
    • https://cdn.sqhk.co/raxulaxesob/bwrjcgj/52150612981.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383801/normal_5fc894402f381.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/tonemakopinibem/7209235526.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/hartley_oscillator_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/blow_my_mind_instrumental_with_hook.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_off0000bbd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBD7 4988 bytes
SHA-256: f5bed8e661e2a4535e383efd6c7ca2624e98ca870555fc32d82568b8acbd78b2
font_01_sfnt_off0000ccf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF0 10508 bytes
SHA-256: 0aaefb2aed8a6d0fdfa23a3d6f14cee226bcf740ba0d6ba0ffce5532489e4242