Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5eb99a53d61dad7…

MALICIOUS

PDF

68.6 KB Created: 2021-02-22 07:37:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 91d86bf137290d74592c54eff21a3b24 SHA-1: c371cbf4d3ebda83e7882149eaf719d1d9b61d31 SHA-256: c5eb99a53d61dad777c42f627723361162e6a9126d0cf2349d78ba7519667140
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=spanish+moss+witchery+reddit PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4410433/normal_5fdd4801919db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390663/normal_6012dc3287bb2.pdfIn PDF document text
    • http://mogabaketenis.iblogger.org/99101127100.pdfIn PDF document text
    • http://strahauto.website/zelotelekifugatemirumirmug7t.pdfIn PDF document text
    • http://dkblogin-de.com/44951667101ubpin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426815/normal_601d29a555b29.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482415/normal_5fe48e61035d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388293/normal_5fce77a7171a9.pdfIn PDF document text
    • http://rollernefrit.xyz/machine_learning_with_python_o_reillyhu6gs.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/retobifulipo/angry_neighbor_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/basetizowid.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/maintenance_planner_engineer_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jidagafinuxesu/ruwewifedefesitefos.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/used_2018_lexus_gx_460_for_sale_used_florida.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/pujulan.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/aadat_punjabi_song_video.pdfIn PDF document text
    • http://jawozamamopenis.rf.gd/vixotabazerijisaru.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/the_man_nobody_knows_1925.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/86756044375.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/vodexiwurukifog.pdfIn PDF document text
    • http://wiwesokowam.epizy.com/gejunu.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_off0000d158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD158 5580 bytes
SHA-256: ee166903d866f29be183cdc735f623fa4a95b9c7799083955df1c9e95cb7c2ea
font_01_sfnt_off0000e445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE445 9772 bytes
SHA-256: 50f0d7475989fcbfdda5e552c4fdbdb15d76ae24fa5c4ae52f65d52b2e61d877

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