Malicious PDF — malware analysis report

Static analysis result for SHA-256 347e6afc1432dca4…

MALICIOUS

PDF

70.8 KB Created: 2021-03-05 03:09:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0dc9d69dea94339ff551bcb4985d06d4 SHA-1: 5329eb7ddf218501e8706691c859057f1f2918e2 SHA-256: 347e6afc1432dca4228f2716728951ec0c93550f5773b8c38bc6c50c93bf3206
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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.
  • 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.
  • 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://yafferge.ru/award?keyword=calculus+10e+textbook+online In PDF document text
    • http://fortuneo.biz/lorabepetomo5totx.pdfIn PDF document text
    • https://cdn.sqhk.co/rigepasemapa/fjivrSv/amazon_seller_feedback_policy.pdfIn PDF document text
    • https://vepawedisekonok.weebly.com/uploads/1/3/4/9/134900222/mazimalini-babuzig-balevogujoninir-daxudavok.pdfIn PDF document text
    • https://cdn.sqhk.co/bitowiso/jh8jtjY/fly_simulator_cockpit_for_sale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427313/normal_5fde81013e4c4.pdfIn PDF document text
    • https://cdn.sqhk.co/xebibugekux/iaGvgi5/galaxy_quest_miners_not_miners.pdfIn PDF document text
    • https://zisibunekotif.weebly.com/uploads/1/3/4/9/134902626/nexafub_kewobib_farug.pdfIn PDF document text
    • https://cdn.sqhk.co/xiponamoribo/gfjbjcu/58824106773.pdfIn PDF document text
    • https://zoxexakaxikat.weebly.com/uploads/1/3/0/7/130739387/1468673.pdfIn PDF document text
    • http://dixajadabaw.66ghz.com/cichlid_species_guide.pdfIn PDF document text
    • http://persequen.com/conversion_of_measurement_worksheetsw2oo8.pdfIn PDF document text
    • https://cdn.sqhk.co/pikukafil/a9jbwPe/31128820771.pdfIn PDF document text
    • https://nenesezeli.weebly.com/uploads/1/3/0/7/130775424/mebeguv-zidek-munagavajit.pdfIn PDF document text
    • http://busumewum.22web.org/powubufufugubuzedum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378152/normal_603bbae575a94.pdfIn PDF document text
    • http://ses-paypal.com/353562683hws2l.pdfIn PDF document text
    • http://mailedflkf.site/rigeruvejuxurenuj32uux.pdfIn PDF document text
    • http://uablog.site/problemas_de_dinamica_resueltosd8v8s.pdfIn PDF document text
    • https://mogiveruxapexi.weebly.com/uploads/1/3/0/7/130775775/2e390c.pdfIn PDF document text
    • http://www.larsoncalculus.comIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/nosebleed_section_flute_sheet_music.pdfIn PDF document text
    • http://gipipirerogarul.rf.gd/wto_analytical_index.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/48776075257.pdfIn PDF document text
    • http://wisalawisavu.epizy.com/jurassic_world_the_game_hack_free.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_off0000d8a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A4 5068 bytes
SHA-256: c9142524a7d4cec443ee5a2566cb704db30426fa43cdc660b9ad2ab8e9b04334
font_01_sfnt_off0000e9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F8 10516 bytes
SHA-256: 13f1291b84ad69f7a752e2a7e94a8aec1b1f64d15fd7069e8293ff9a324a3d0b