Malicious PDF — malware analysis report

Static analysis result for SHA-256 6012c9fbca708756…

MALICIOUS

PDF

70.8 KB Created: 2021-03-02 18:27:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4533c174840d041928dd8e9c04edb704 SHA-1: 9cae5421bce875e11d489fac736fa3f1189c9861 SHA-256: 6012c9fbca708756297b8ad73e636d33a779e209d0337f808b4aaf04b51db22e
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://zajinet.ru/award?keyword=list+of+two+letter+words+in+english PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4493920/normal_6020b6910aa2d.pdfIn PDF document text
    • http://tidirakozodawon.getenjoyment.net/how_many_calories_does_a_western_omelet_have.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/how_do_you_cite_harrisons_principles_of_internal_medicine_20th_edition.pdfIn PDF document text
    • http://ganedoxumizaj.sportsontheweb.net/kisabafelesem.pdfIn PDF document text
    • http://xesapuwax.mywebcommunity.org/95402501299.pdfIn PDF document text
    • http://kebitax.22web.org/jufirozusuwefig.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/saziwijaxodav/berumosobafawubamod.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/kelutakafedikikijage.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/busevixajasuk.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/malcolm_x_homemade_education_essay.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/akuntansi_pemerintah_daerah.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/62508635171.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/adaptec_asr-_71605_manual.pdfIn PDF document text
    • http://lavemob.epizy.com/jammu_kashmir_weather_report.pdfIn PDF document text
    • http://zufomukibataj.rf.gd/4187280042.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/76307004413.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_off0000d922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD922 4992 bytes
SHA-256: 17619d5f369d36c000fe7ac6373c175a49f56d065700d3bdb9926953eb555521
font_01_sfnt_off0000ea2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2C 10568 bytes
SHA-256: 5fec8653e221cfcbd2d0c4ff2a5911ef9f232baf6e495106cbefac46b302b306