Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e3a4595cc678160…

MALICIOUS

PDF

69.4 KB Created: 2021-02-27 05:04:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5a837b54e54c517b1b06b74849aadb70 SHA-1: ceed40000c83e90f0fe18105180352ab23429840 SHA-256: 3e3a4595cc67816029a6c2c218d762c75a61f82fbc22b048a39aec19795eec26
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://botokaw.ru/wix?keyword=shark+navigator+lift-away+professional+nv356e+parts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368486/normal_5fdaf67758d69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456143/normal_6028316e8bbf1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418968/normal_5fe3e75176b9e.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/womizik.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/gusule/keruxozufaxepotetapixeke.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/22511549132.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/gaster_blaster_sprite_sheet.pdfIn PDF document text
    • http://marivugedada.epizy.com/chinnari_chinnari_chiluka_private_song.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/6622350708.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/netgear_n300_wnr2000v5_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/physics_answers_for_questions.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/damituzerodekamaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/republic_ez_broadcast_spreader_manual.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/how_many_months_is_nigeria_navy_training.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/old_face_changer_app.pdfIn PDF document text
    • http://bededatesaw.epizy.com/i_am_mantra_twitter.pdfIn PDF document text
    • http://futikuzita.onlinewebshop.net/how_to_connect_epson_artisan_1430_to_wifi.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_off0000cfa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA2 6060 bytes
SHA-256: 5c0aded37cd507d81ec23e0f8368e3710ba49249fd1a8cdc3cdb960a907ba873
font_01_sfnt_off0000e45d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45D 10544 bytes
SHA-256: 6d904ee21b772370563bb7084a1b0122db4d3bef96a00b6c3e20551f6c831858