Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e3702d06ae4094f…

MALICIOUS

PDF

68.0 KB Created: 2021-02-19 15:30:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 91cf013f3af53cc06c416e36c136629f SHA-1: 1fefd3ef43a002cad5443cb5d9482b9a744816b6 SHA-256: 6e3702d06ae4094feabc0270c6f5b4d6e303f679d81d0e5b0f5e9dd5c000e37a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a lure related to 'low carb not keto' and embeds a URL pointing to a suspicious domain. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The embedded URL is likely used to redirect the user to a malicious site for further exploitation.

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://druttle.ru/123?utm_term=how+to+do+low+carb+not+keto PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484814/normal_5fe2f1d577317.pdfIn PDF document text
    • http://pedujagafena.22web.org/business_plan_template_basic_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402949/normal_5ff1b19f38041.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/2asLINX/liziniwidimumori.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459166/normal_5fcfe76a82d67.pdfIn PDF document text
    • http://liwitavazij.iblogger.org/12401366955.pdfIn PDF document text
    • http://idealslimitaly-official.site/49397943860quh1c.pdfIn PDF document text
    • https://cdn.sqhk.co/tirekidifole/jdhj3je/97601028926.pdfIn PDF document text
    • https://cdn.sqhk.co/goronikel/Mjajdgj/vividimusev.pdfIn PDF document text
    • http://20970907.net/marvel_movies_before_avengers_endgameq3rfy.pdfIn PDF document text
    • https://cdn.sqhk.co/rexukewanej/hidies6/wuwusidagepoli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458635/normal_601180cf8086e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390641/normal_6002daeb5d6d4.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/lusabifef/awlgrip_hdt_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/new_bollywood_movie_in_2019_free.pdfIn PDF document text
    • http://vawolibosabope.rf.gd/finding_complementary_angles_worksheet_answers.pdfIn PDF document text
    • http://xajazofi.rf.gd/learnzillion_guidebooks_grade_7.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/apache_maven_3._6._0_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/bewildered_adjective_form.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_off0000cd51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD51 5012 bytes
SHA-256: 42dde3e8c8a320794d7b5bc7574370e14708db37103b885358f6a3e7ac44a9b3
font_01_sfnt_off0000de7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7A 10748 bytes
SHA-256: 516908bbc342101bfd93cea9b6f6fd52faad158d0579dec31118ecaa60182d98

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