Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fcba18ebe499230…

MALICIOUS

PDF

69.7 KB Created: 2021-02-18 02:04:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3e3dc94dc692ad584836ecd85bd78e5e SHA-1: f57943910341e341d7a82eadec1eeb1298ba48c7 SHA-256: 8fcba18ebe4992300657712953c0cc2d8accd9f3144ed522e5ae3da81c2c1cfa
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://jacksth.ru/wix?keyword=download+amazing+spider+man+2+apk+data+mod PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4471682/normal_60150e58a7af1.pdfIn PDF document text
    • https://radixukawatezod.weebly.com/uploads/1/3/4/6/134645496/c63919e27.pdfIn PDF document text
    • http://probkin34.xyz/naa_autograph_songs_freecbcig.pdfIn PDF document text
    • https://sagolofuba.weebly.com/uploads/1/3/4/8/134873879/dejixatazoro_julasafe_mibureromegi_jerikega.pdfIn PDF document text
    • http://s7hmus.org/daxezuzm6urt.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/kiwopusafize/44471735237.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/pasta_carbonara_nutritional_information.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/capture_photo_from_video_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/xamizir.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/drop_down_menu_in_html_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/97734214705.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/cv_template_for_jobs_in_dubai.pdfIn PDF document text
    • http://puvuwanixos.rf.gd/31964504783.pdfIn PDF document text
    • http://mujozitovisiwud.rf.gd/95100291794.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_off0000d2de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2DE 5616 bytes
SHA-256: ef96c1627d36a922e827e2f5d3e0198c9e5572b8f66bca5892b2c6dafedcb8b3
font_01_sfnt_off0000e60c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60C 10352 bytes
SHA-256: 0ab2754a17fa0c89a68a4031f90ae8791e28c0399d3e743e1650e933132dbf2f