Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfe066567ac3771f…

MALICIOUS

PDF

74.3 KB Created: 2021-01-30 19:58:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7bc447b6f0e25113dc350598dfadbcca SHA-1: 58a0b5ed93bf761012d182bef62fbe590c8f6214 SHA-256: bfe066567ac3771ff68b173ef9d70efeb7815e36bf305ab08d3765fc6b00225c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wb?keyword=space%20marshals%202%20walkthrough PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4427526/normal_6003dbde580a8.pdfIn PDF document text
    • http://fawetugamuxix.66ghz.com/ziruweguvezebafizovesasoj.pdfIn PDF document text
    • http://heartcenteredequestrian.com/zombieland_2_netflixkpo3i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384463/normal_5fd27abf4ca6e.pdfIn PDF document text
    • https://cdn.sqhk.co/lagazowasobo/fYifyjh/mimanelupup.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/sigobija/pa_infrastructure_report_card_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/raruzawizoj.pdfIn PDF document text
    • http://fabodatutowew.epizy.com/badmashiyaan_song_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/apache_disable_server_information.pdfIn PDF document text
    • http://beluguliwiwe.epizy.com/91046603665.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/27552212943.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/disable_bixby_android_pie.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/modern_automotive_technology_workbook.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/araba_oyunlar_indir_apk_day.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/15144688668.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_off0000e53e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE53E 5740 bytes
SHA-256: 8c894078962ecb551ee6778c671702629f6338109ec25d34267e7a1fb9edf12d
font_01_sfnt_off0000f8b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B2 10464 bytes
SHA-256: 01cfdeecbdea4848d7c28128b23af07baf045933873fb97490a78c3d70ce05ca