Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ad675aab72927b7…

MALICIOUS

PDF

65.9 KB Created: 2021-02-25 07:41:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: aa643e7194ed5d169e40d6f8ebf29145 SHA-1: a388300ff7bfb6a526e9114770f6186b4d728652 SHA-256: 3ad675aab72927b7f1084a64b9138e1dafa27950e9bdfee53207a12041a8fa69
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/award?keyword=bosch+300+series+dishwasher+canada+best+price PDF link annotation
    • http://gexomafe.mypressonline.com/purabuvawofemanosedeludar.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizilo/gjcjfja/mijofuder.pdfIn PDF document text
    • https://nimidakotogala.weebly.com/uploads/1/3/0/8/130874585/3290789.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarasam/bgd9ijV/afro_samurai_phone_wallpaper.pdfIn PDF document text
    • http://kufafukedexepix.mygamesonline.org/kavaluroponakoki.pdfIn PDF document text
    • https://cdn.sqhk.co/xidupesijij/jfiahMf/waxafofelubawaxarefil.pdfIn PDF document text
    • https://cdn.sqhk.co/dowusutitozi/jhH1Jhd/highway_3d_cross_fastway_traffic_highway_crossing.pdfIn PDF document text
    • http://xepidenad.scienceontheweb.net/rain_dial_manual_run_all_stations.pdfIn PDF document text
    • https://cdn.sqhk.co/lilaxikixo/bsggAif/football_manager_2020_touch_mobile_apk.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/zafuna.pdfIn PDF document text
    • http://sizegivip.22web.org/formule_chromosomique_d_une_cellule_somatique_humaine.pdfIn PDF document text
    • https://revixapega.weebly.com/uploads/1/3/4/6/134619396/kipusivogusexur.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/jiggjaF/51715085980.pdfIn PDF document text
    • https://cdn.sqhk.co/pejozujemu/8ggjbEg/game_development_in_c.pdfIn PDF document text
    • https://maduzoxunixeg.weebly.com/uploads/1/3/0/7/130775653/8889667.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kejarajavamoge.epizy.com/20431822941.pdfIn PDF document text
    • http://ligeziwofumupo.epizy.com/briefing_paper_template_uk.pdfIn PDF document text
    • http://tenurusimuxu.epizy.com/lezekido.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_off0000c228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC228 5716 bytes
SHA-256: fc6a0738de399197f794e2b3ac19dc044228198a342482c2ccac67f0bde3de6d
font_01_sfnt_off0000d59b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD59B 10688 bytes
SHA-256: bb12d3653d13a27e3cc08d37e75a5df17b6777c5f22735fae19b55be9ff38faf

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