Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f45e2662b0d6c1b…

MALICIOUS

PDF

67.8 KB Created: 2021-02-22 16:55:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 7f9c36f348f0c4898b34044dc23447c7 SHA-1: 48fa91984a2af9d2b4e7c8637467dc4f5e037faf SHA-256: 7f45e2662b0d6c1b09f946a93b13877049392a9916a979605ebb93e6165da273
136 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
  • 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://maypoin.ru/aws?utm_term=noco+genius+won%2527t+turn+on PDF link annotation
    • http://fortysgjdk.fun/bixiwedibomilipd6mn6.pdfIn PDF document text
    • http://nazhivy.net/givebeterenizidatab37gmd.pdfIn PDF document text
    • https://fejilexa.weebly.com/uploads/1/3/1/1/131163980/tukamasubifaz.pdfIn PDF document text
    • http://onlinetiser.website/covid_numbers_by_state_per_capitaux7no.pdfIn PDF document text
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/turixapuboluk.pdfIn PDF document text
    • http://okrasote.info/malaxag22ep2.pdfIn PDF document text
    • https://karaxofuko.weebly.com/uploads/1/3/5/3/135344752/tikikifibure-jewokevowejevod-sobasixokagu-jilopelujuxut.pdfIn PDF document text
    • http://s7hmus.org/operations_management_collier_evansquuh4.pdfIn PDF document text
    • https://jorosovepi.weebly.com/uploads/1/3/4/7/134706332/tipipopegakaro.pdfIn PDF document text
    • http://musofiron.ru/mutepirejidurewekipaxepvzh7x.pdfIn PDF document text
    • https://novufetus.weebly.com/uploads/1/3/4/1/134131343/sogasige.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/bokexizometun/kendo_angular_grid_row_template.pdfIn PDF document text
    • http://vetoraj.rf.gd/rimosajuxitegojivadevowak.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/wopogatumegexixi.pdfIn PDF document text
    • http://xepuzuxomof.rf.gd/49100562513.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/interesting_adjectives_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/china_visa_application_form_jakarta.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/fipenurepaxiluvu.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_off0000cd3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD3E 4820 bytes
SHA-256: a045cd6076481bf465994497accbbdcb249639844c54ee07adaa5334fc5ab4c1
font_01_sfnt_off0000ddda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDA 10772 bytes
SHA-256: a51c62154f2df457171eeef97f1013e98bf5595080143ab4a38d0d53f6e3b3ec