Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be543b427052726…

MALICIOUS

PDF

76.6 KB Created: 2021-04-16 18:41:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9624e93218a23edbc683de323c5bcb83 SHA-1: de64345a1ce7f566402b23adb1c5c4fa226650f8 SHA-256: 0be543b4270527263fe1928bfa1d644299c36c8259b57b3712889dfb2c2c51fd
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xajibur.ru/strik?utm_term=how+much+money+do+mcdonald%2527s+employees+make PDF link annotation
    • https://cdn.sqhk.co/nagigureti/cghaczd/32509347813.pdfIn PDF document text
    • https://cdn.sqhk.co/meparifemoji/jibVigw/resawesafa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453337/normal_5fd3ba41c2124.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421339/normal_602064b242930.pdfIn PDF document text
    • https://cdn.sqhk.co/pisomuma/iiishjc/56805331659.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379384/normal_6016fe9281ed2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413851/normal_6059071500ed6.pdfIn PDF document text
    • http://electrumwallet.buzz/html5_text_size_cssm5caj.pdfIn PDF document text
    • https://cdn.sqhk.co/ximirujusuxo/gijluhg/jowonagemetoxoferira.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376375/normal_6040ea148e5d8.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/zHgcTgf/city_driving_3d_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kenoramof/hhdFhgh/high_school_football_team_manager_duties.pdfIn PDF document text
    • https://cdn.sqhk.co/kuwusemob/kijchgo/visolonos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393883/normal_6012396ea96ef.pdfIn PDF document text
    • https://cdn.sqhk.co/gikokimofegi/8igrajg/nikisepakozamebebiku.pdfIn PDF document text
    • http://capridigi.com/zetedowizafezugeduluxomem4s189.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414515/normal_6045f199b832e.pdfIn PDF document text
    • https://cdn.sqhk.co/definuseju/28H1xJT/bubble_puzzle_hit_the_bubble_free_game.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/fjdPfwi/nipijidefitadukukitij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ed3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED3C 5472 bytes
SHA-256: 18642cb41b39ba407e6d59b1af7afab36adaac9368d305f6166ef759469dd6bb
font_01_sfnt_off0000ffd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD1 10980 bytes
SHA-256: 084e3b985f7636e9d6b2a358cf43febede647f20d2c4b99c5ebc3aae7e751837

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