Malicious PDF — malware analysis report

Static analysis result for SHA-256 63d624167dabd7e6…

MALICIOUS

PDF

73.5 KB Created: 2021-04-30 13:26:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 1ffc4fa906580dff03ad3431c01c04e6 SHA-1: ceef7274e4125c88cfd95f6bf5facbe776c57b73 SHA-256: 63d624167dabd7e6206e60d4b4a96a8f6f5eb1f8c189ab33519a4441b0f6897b
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified by heuristics as PDF_URI and EMBEDDED_URL. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, appears to reference a 'Stanley 25 amp battery charger', suggesting a lure to trick users into visiting the malicious URL. No scripts were extracted, but the presence of external URIs and the ML/AV detections point towards a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://jumiwimov.ru/strik?utm_term=stanley+25+amp+battery+charger PDF link annotation
    • http://pusewuvi.medianewsonline.com/binary_number_multiplication.pdfIn PDF document text
    • https://cdn.sqhk.co/bexefoboxevi/xEROghr/14976916442.pdfIn PDF document text
    • http://mif-smeh.space/30225816303f7sy4.pdfIn PDF document text
    • https://cdn.sqhk.co/bivaxijo/4kUFhbt/kitchen_family_style_popovers.pdfIn PDF document text
    • http://jakartapro.xyz/word_finder_game0ezbr.pdfIn PDF document text
    • https://cdn.sqhk.co/xadopazo/XugeOji/24729550218.pdfIn PDF document text
    • http://avto-document.site/denon_avr_x2200w_manualu8p68.pdfIn PDF document text
    • http://unityfree.xyz/20985365091c6n0w.pdfIn PDF document text
    • http://lasiwefomibew.sportsontheweb.net/brisingr_christopher_paolini.pdfIn PDF document text
    • http://liketsven.xyz/pizegegilewetutirosifeliec9jv.pdfIn PDF document text
    • https://cdn.sqhk.co/fetumamuv/Xpvqjh9/double_clutch_lure_95.pdfIn PDF document text
    • https://cdn.sqhk.co/forinabam/hjV3Gwr/1780150225.pdfIn PDF document text
    • https://cdn.sqhk.co/guledijuxi/QgdWUAW/wordpress_plugin_list_of_items.pdfIn PDF document text
    • https://cdn.sqhk.co/nuleneru/B7jc1kw/46037914740.pdfIn PDF document text
    • http://kakafeg.scienceontheweb.net/24725599032.pdfIn PDF document text
    • http://taxevidel.medianewsonline.com/cual_es_la_estructura_del_texto_narrativo_wikipedia.pdfIn PDF document text
    • https://cdn.sqhk.co/famazipow/jbejjmF/basketball_slam_dunk_gif.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/xisakazelelinim/95392086991.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/72591658096.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/vujafedowanezoka.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/center_worksheet_in_excel_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/fidox.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/office_2010_powerpoint_themes_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/genie_pro_screw_drive_remote_programming.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/what_is_the_best_total_gym_to_buy.pdfIn PDF document text
    • http://fikelamizogu.myartsonline.com/castellan_descargar.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/visijonekemuwaz.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_off0000e176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE176 5772 bytes
SHA-256: deb3f3dd279fc5e0dd81181a8bc0a8ab722668e8237d93e19f559de864370908
font_01_sfnt_off0000f4fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FB 10476 bytes
SHA-256: f9146c1e3a2a5e22b6d3761b13fa4a9aba168547cdc735dcda13b3a850fe0bd4

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