Malicious PDF — malware analysis report

Static analysis result for SHA-256 10bee88c7378111b…

MALICIOUS

PDF

59.9 KB Created: 2021-02-06 23:52:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 86329c78f407091ef1167cfed632448c SHA-1: 75d3a53285b9edd4b17656eb690c83977e5d756f SHA-256: 10bee88c7378111bb49d5c05451fa093f2ee0d6dd726782458e067df3aaf0cb6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/123?utm_term=area+code+208+prefixes PDF link annotation
    • http://cookwellbakewell.com/runsignup_monster_dashmu4j0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5fe8564e51914.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467573/normal_5ff29cc2c206a.pdfIn PDF document text
    • http://dhl-order.info/ministry_of_information_and_broadcasting_vacancies6pepf.pdfIn PDF document text
    • http://mazafaka69pussy.online/lethal_race_juegos_frivt8h2t.pdfIn PDF document text
    • http://reduslimer.website/minnesota_drivers_manual_worksheet_answersouomc.pdfIn PDF document text
    • http://sun-italy.space/237244976191w2je.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/wuvepilamamuse/lejuxogavuselivonas.pdfIn PDF document text
    • http://xuwugufufokiti.epizy.com/lojuzuki.pdfIn PDF document text
    • http://pinamagowejut.epizy.com/51528716941.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/37050231675.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/bachiko_nannali_song_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/lima_bean_germination_experiment_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/jikofidetivizinumagi.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/angel_of_death_ending_song.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_off0000af6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF6E 5640 bytes
SHA-256: 4785230f029073d995121ffa038675041f811dfd9d8782fdafb7a084997e3fd0
font_01_sfnt_off0000c2b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2B8 9308 bytes
SHA-256: edfad7ff1c18048ca498589c2e658fae8d7a4fb76a7a52b8f0bd5b97091c41e7