Malicious PDF — malware analysis report

Static analysis result for SHA-256 67d756e56ef7237c…

MALICIOUS

PDF

70.3 KB Created: 2021-03-19 04:51:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f64db78619f848c44b7a816102f217b8 SHA-1: 28c8a9e40c08fca776d425a46f7c80a73fe1d898 SHA-256: 67d756e56ef7237c2008a2661300023689c080c026705936d29a5b0fcde3fd43
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 0.9997

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
  • 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://maypoin.ru/strik?utm_term=why+is+my+samsung+dishwasher+turning+on+by+itself PDF link annotation
    • https://cdn.sqhk.co/vuwonesi/Fijozjf/duvunimoviboxiwonigajisa.pdfIn PDF document text
    • https://cdn.sqhk.co/kugetikusuz/hgejjgz/best_addictive_free_android_games.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/QifjctD/fasabuwuzopaxigabigeni.pdfIn PDF document text
    • http://helpforteam.com/esl_activities_for_adverbs_of_frequencyr6nsc.pdfIn PDF document text
    • http://souve.me/memotinopejx8w1.pdfIn PDF document text
    • http://devicesprotectionforusers.site/ffxiv_treasure_mapsg69rs.pdfIn PDF document text
    • https://cdn.sqhk.co/waketeni/iiib8rR/olivia_newton_john_top_ten_hits.pdfIn PDF document text
    • http://catsism.com/dissidia_duodecim_labyrinth_guidespr00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449192/normal_5fdd3f0de4670.pdfIn PDF document text
    • https://cdn.sqhk.co/jalafimimodo/Kijiahg/hd_wallpapers_1080p_for_laptop_full_screen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415768/normal_5ff1c9fcf10d1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://beritoka.rf.gd/ieee_829_incident_report.pdfIn PDF document text
    • http://gixisenusadat.rf.gd/calibre_ebook_editor.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/91125740168.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/93364098483.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/90626701820.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/80979265490.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/2020_ford_mustang_gt_premium_hp.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/chicago_format_bibliography_page.pdfIn PDF document text
    • https://s3.amazonaws.com/lepefi/45512967938.pdfIn PDF document text
    • http://juvezarixa.epizy.com/jepimizegaleten.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_off0000d42c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD42C 5668 bytes
SHA-256: bbec920bb2d1aba93fa98b4e913d9634300bd34ac8246f7b1d05bec313730355
font_01_sfnt_off0000e76b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76B 10600 bytes
SHA-256: 2be427a8db9ab1e4ff8fce9a6e6069551581eae37ab761311067269a02f3c4ef

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