Malicious PDF — malware analysis report

Static analysis result for SHA-256 2467ee180a6eb915…

MALICIOUS

PDF

73.1 KB Created: 2021-03-06 06:40:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 6d37f4b077556f906a8bf0a01616c501 SHA-1: d78ff8b7e058f8090b4b2df22ac81bc372f25160 SHA-256: 2467ee180a6eb91587ced9dc6978452e956b0f58909c449c20c174cb119a3a3d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The document body, though heavily obfuscated, appears to be a lure related to a car part search, likely intended to trick the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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/award?keyword=how+much+is+a+battery+for+a+2012+toyota+camry+hybrid In PDF document text
    • https://cdn.sqhk.co/kugefiruxat/hhcV8nw/patanjali_yoga_sutras_yamas_and_niyamas.pdfIn PDF document text
    • https://cdn.sqhk.co/dakuwuwuzije/hj1acia/gujibapelutojevosasigux.pdfIn PDF document text
    • http://kpupnov.pro/30771127532ut1rz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427799/normal_5feff567735ad.pdfIn PDF document text
    • http://eliyalte.com/yamaha_mg20xu_mixing_console4rxr0.pdfIn PDF document text
    • http://topcreditscore.info/phoenix_wright_cornered_piano_sheet_musicz37fa.pdfIn PDF document text
    • https://cdn.sqhk.co/daxutoxod/FgfjjdP/80s_anime_iphone_wallpaper.pdfIn PDF document text
    • http://dektesheff.xyz/allen_bradley_heater_selection_guideslbka.pdfIn PDF document text
    • http://milky-rp.space/tales_rush_wikijiomn.pdfIn PDF document text
    • http://sibatike.getenjoyment.net/toro_weed_eater_parts_amazon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447646/normal_5fe9d905a4d99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424951/normal_6023dd2f44c32.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c09756ae-555b-4075-a538-667304ead6ef/yo_amor_tu_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/27978517658.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/gimasujusedinupa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98188f19-e152-4069-9ff1-7749ce6952fe/exam_p_study_tips.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f52f5965-ab97-4fa1-94b6-4c1d6182f0e5/kedomurixetosegakakowo.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/dungeon_fighter_online_class_guide.pdfIn PDF document text
    • http://kimawawasero.onlinewebshop.net/hobbit_audiobook_download.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/95740151031.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/asset_management_system_php.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_off0000df3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3B 5852 bytes
SHA-256: 6d4d78925df5a6d8c9da7c6f156aa34688e75c682b9e1ffc615668f621082ec4
font_01_sfnt_off0000f310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF310 10428 bytes
SHA-256: f1be84c294db4c0ea8e4e41702d708d9f53f202d6bcdf140598c1f656310c941

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