Malicious PDF — malware analysis report

Static analysis result for SHA-256 b96aab0a97b45b27…

MALICIOUS

PDF

66.7 KB Created: 2021-02-10 02:12:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: aa3d600ebf87b7df5acc2a87fa50a716 SHA-1: 6ce78891fa06fff4070750e9ec2e1bc30facc8a6 SHA-256: b96aab0a97b45b275e6258208687940cd5bfc0e095c6fa5ba9558b66676a5ba5
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://leonvi.ru/aws?utm_term=friendship+remix+song++pagalworld PDF link annotation
    • http://stavki-na-sport.site/kiwazogafoguzaximewegeau1l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409614/normal_5fcc996d21e05.pdfIn PDF document text
    • http://mebel-albero.ru/673014397729cp5r.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/xalasawu/mi_x_camera_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/at_t_international_dialing_guide.pdfIn PDF document text
    • http://sogisujomixugo.epizy.com/wwe_wrestlemania_bleacher_report_grades.pdfIn PDF document text
    • http://ketavulamuxi.epizy.com/jeletomabudamagazotopunun.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/35195999686.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/pupegedel.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/40165063279.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/38661105258.pdfIn PDF document text
    • http://debagejusuwaj.epizy.com/30064871727.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/pumubuxubupivedofem.pdfIn PDF document text
    • http://doxewadafexe.rf.gd/stream_of_consciousness_in_ulysses.pdfIn PDF document text
    • http://sibubixusa.epizy.com/angsana_new_for_mac.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_off0000c6f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6F1 5488 bytes
SHA-256: 660d126365cf8f410f4b749c273804066248b389026e67a614d7bff57275f6df
font_01_sfnt_off0000d98a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98A 10772 bytes
SHA-256: de5d2f3cdb5d8ba2c066ee685b7826f76b86c3248ae18453eb1bc1dc0ea47f22