Malicious PDF — malware analysis report

Static analysis result for SHA-256 f989b23b14afa6e6…

MALICIOUS

PDF

67.6 KB Created: 2021-04-07 13:27:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0740d77a83384b384aca4cbe669a269e SHA-1: ad7d05842b4815961c154e9be573e5d3e1b2724c SHA-256: f989b23b14afa6e69576db46731d38a2f33a33db473bb5ca20acba8ebfc7bac7
94 Risk Score

Malware Insights

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

The file is a PDF containing a lure for a Salesforce Apex tutorial, which redirects to a suspicious URL. ClamAV and ML classifiers flagged this PDF as malicious, specifically a phishing trojan. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing page or further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8464

Heuristics 3

  • 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
  • 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://gimoguvi.ru/aws?utm_term=salesforce+apex+tutorial+pdf
    • https://cdn-cms.f-static.net/uploads/4376125/normal_60650a3c4b6e1.pdf
    • https://static.s123-cdn-static.com/uploads/4470962/normal_5fec3b09d83cc.pdf
    • http://laxofetiduwi.iblogger.org/14188793567.pdf
    • https://cdn-cms.f-static.net/uploads/4417653/normal_6033b296437c2.pdf
    • https://cdn.sqhk.co/naxetimi/djjlha2/bizojelirolusazuv.pdf
    • https://cdn-cms.f-static.net/uploads/4401714/normal_60697f263d906.pdf
    • https://cdn-cms.f-static.net/uploads/4392864/normal_605d7e8abc452.pdf
    • https://cdn-cms.f-static.net/uploads/4421049/normal_60278818b0d7a.pdf
    • https://cdn-cms.f-static.net/uploads/4366676/normal_600c76f03caa0.pdf
    • https://cdn.sqhk.co/vedoreket/ljdgfji/entropia_universe_hunting_guide_2017.pdf
    • https://cdn.sqhk.co/jorafulati/ihsSALG/zalolewefok.pdf
    • https://cdn.sqhk.co/raxuzuvuluf/ikTheid/2019.pdf
    • https://cdn.sqhk.co/pelemobi/hi1hbtc/atmosferas_peter_zumthor.pdf
    • https://cdn.sqhk.co/tatudawo/ajgjgij/bejovaluzirosam.pdf
    • https://cdn-cms.f-static.net/uploads/4462379/normal_5fd27faa604a5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/18f926d7-4afd-45c9-a25c-5d6600eca13c/1774274998.pdf
    • http://duxuramubot.epizy.com/sum_of_arithmetic_sequence_worksheet.pdf
    • https://uploads.strikinglycdn.com/files/3c6bffa0-d8c4-4f60-9a3f-f0d03d2faaf4/inkscape_svg_converter_download.pdf
    • http://xapusadezed.rf.gd/datasimapirerurukexupizaz.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f973.bin
ce982a4eb9ccd1b290c0ca26ac8f99cdebe13100ecb58bd211e0e2dedbf49f76		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF973 5320 bytes

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