Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0762bee63b8d12a…

MALICIOUS

PDF

83.0 KB Created: 2021-02-17 21:25:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1f8067a286ff778506d68e1f458cda2e SHA-1: 17779d8df6ad0e23d74a935ccd806eb6748bf484 SHA-256: e0762bee63b8d12acc5066143feb8284f5ede1625788edec817a21c48de3757d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site, likely as part of a spearphishing campaign.

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://druttle.ru/strik?utm_term=circular+and+satellite+motion+universal+gravitation+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489853/normal_601d55239e9fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424361/normal_5fd942fcb2266.pdfIn PDF document text
    • https://pifaxatopegamu.weebly.com/uploads/1/3/4/1/134108845/wizena.pdfIn PDF document text
    • http://itgermany.net/rudajapedemixitu2whao.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462727/normal_5fcb67262fccc.pdfIn PDF document text
    • https://piluzixalevuj.weebly.com/uploads/1/3/5/3/135345731/jejowobef_noxip_xixizedawox_fupuv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383924/normal_5fe912505b08e.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/bulikowexunepov/fejezowinibenorarez.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/5980543384.pdfIn PDF document text
    • http://tizidirek.rf.gd/properties_of_exponents_review_worksheet_answer_key.pdfIn PDF document text
    • http://kobizesamow.rf.gd/goxeka.pdfIn PDF document text
    • http://webakipi.epizy.com/vosevitilale.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/payroll_management_system_ppt_free.pdfIn PDF document text
    • http://ropawoma.rf.gd/nfhs_track_and_field_rules.pdfIn PDF document text
    • http://dekubovuvupo.epizy.com/budojezimejato.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/english_worksheets_for_year_1.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00010f24.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10F24 25992 bytes
SHA-256: 38d07406d6f0b86ba79bd471d389b4536e4ef11aaf8a2917ab599ad74a6a35db
font_00_sfnt_off0000d61e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD61E 5316 bytes
SHA-256: 1a027d1f769efc586811da33914f259bd524524e8ed71d5e7f5749166c2ee90e
font_01_sfnt_off0000e827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE827 11316 bytes
SHA-256: 240b6fcd551b9ae084c23331cb78ce213e99c60735fb3fc813b41c9fd87c23fd

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