Malicious PDF — malware analysis report

Static analysis result for SHA-256 769e8465363aac0f…

MALICIOUS

PDF

69.5 KB Created: 2021-02-19 19:56:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9e48985aa17c4cca9153d96acd8b0dc0 SHA-1: e9262dbdd87f6b9cfab5e65b15014b83ebaa22d1 SHA-256: 769e8465363aac0f02f199499ce17cb7b9cd54434da6f979abe261f93eb4711d
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=1996%20jeep%20cherokee%20xj%20alternator In PDF document text
    • https://cdn.sqhk.co/wovupeni/cQeijnQ/tirobiwijejepagoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494668/normal_5fd7f25351156.pdfIn PDF document text
    • http://skidki-day.site/swamy_handbook_2017_free_downloadj73h9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491169/normal_5fdd32066dbee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501632/normal_5fd3a0f141a4d.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/jchcUib/nerolaginozawomezex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471275/normal_60103f8854808.pdfIn PDF document text
    • http://hushseo.online/bank_call_center_job_description_for_resumee4zy3.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/jijumupade/bill_of_lading_templates_word.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/android_iphone_xs_max.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/gds_pay_committee_report_latest.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/drawing_simple_electrical_circuits_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/98916317149.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/vixoxipononozowuditiger.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/avarampoo_tamil_movie_songs.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_off0000d464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD464 5316 bytes
SHA-256: 2571d702d696c7f519f2a43e383dcd49c1a73a0cae59e5f5da8fa28537662206
font_01_sfnt_off0000e677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE677 10124 bytes
SHA-256: 34f8ae595efd5f52a3d95aefc61bc658f9c93ae2da4306d4a36fd62eb00b3900