Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9be8bf4e8d32ac6…

MALICIOUS

PDF

78.5 KB Created: 2021-02-28 06:03:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 2f2abe3652d6f2b2b446afceb7f0f805 SHA-1: 5699bc8a53494559a700b19a05a9c9f877587f66 SHA-256: f9be8bf4e8d32ac606dc8263ea7c093ada9c5e5a0ba33ccd900f3077c6b2b442
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, disguised with a book title. ClamAV and ML classifiers flagged this file as malicious, indicating it's likely a phishing or malware delivery attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URL suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://midufefew.ru/award?keyword=the+complete+tales+of+winnie+the+pooh+book PDF link annotation
    • http://gexopidikimo.mygamesonline.org/57878702512.pdfIn PDF document text
    • http://bapatavusirave.mygamesonline.org/chemistry_ionic_compounds_worksheet_answers.pdfIn PDF document text
    • http://mesugowogidevik.iblogger.org/flirty_would_you_rather_questions_for_him.pdfIn PDF document text
    • http://suzofovolavuk.scienceontheweb.net/fogivubu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382952/normal_5fd28834d6df4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408596/normal_5fc6d66179728.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373243/normal_6017d005dabfb.pdfIn PDF document text
    • http://momarivido.mypressonline.com/padasugejawof.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/guvovigo/68822525053.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/kindle_format_books.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/81665136884.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/what_ended_the_great_depression_in_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/jifabubo.pdfIn PDF document text
    • http://xidijunuv.rf.gd/gas_chromatography_ppt.pdfIn PDF document text
    • http://joxumokuri.epizy.com/bluetooth_drivers_windows_10.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8B 5404 bytes
SHA-256: 62a02479858097e9eb57ebd4c704425bcf1a9ac6e92ae28fceb9e2dffe5cddae
font_01_sfnt_off0000f0dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0DC 11008 bytes
SHA-256: 8ca7334b1fd18d363786ecb9d0e3558d1a6d8a337e8f3079a352d369feaf62c0
font_02_sfnt_off000116b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116B7 16664 bytes
SHA-256: 7d60d81f83ae5bbbc3123c622d450d276177227e557595e69acc2c327b4b1e2c

Open this report in the interactive analyzer, or submit your own file for analysis.