Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c5de2532c923b0a…

MALICIOUS

PDF

80.5 KB Created: 2021-04-16 05:07:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: d5c5ad3fa03a5a1fd648ea70148d126d SHA-1: 2e8efe353c2be6bc04b275309cc7aa196a90b2d9 SHA-256: 9c5de2532c923b0ab50265aea73c2c9564625501751338bd73281feb5b1c1644
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan. It contains an embedded URI pointing to a suspicious domain, mezovuduw.ru, which is likely intended to host a malicious payload or phishing page. The document body, though heavily obfuscated, contains references to a product name and application details, suggesting a lure to disguise the malicious intent. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://mezovuduw.ru/strik?utm_term=soundlogic+xt+powerhouse+bluetooth+speaker PDF link annotation
    • http://cybety.xyz/what_food_goes_well_with_a_riojad5dfs.pdfIn PDF document text
    • http://icub.tech/sokujetanudenemugewabulddtba.pdfIn PDF document text
    • http://harkateine.fun/gosexomelexidikowokunu9tzij.pdfIn PDF document text
    • http://makedctl.site/dgx_640_used_price8kb4z.pdfIn PDF document text
    • http://axecheat8.xyz/codex_astra_militarum_8th_vklo4bk.pdfIn PDF document text
    • http://abreudesigns.com/274071936880xv2r.pdfIn PDF document text
    • http://cosmostil.top/five_nights_at_freddys_2_unblocked_games_76a1ie1.pdfIn PDF document text
    • http://italiabeach.space/54190559081npbbq.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeforms.com/linilbonba.pdfIn PDF document text
    • http://talakam.space/950309514501y22x.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/26770567549gd00m.pdfIn PDF document text
    • http://omerkatanalp.com/95007619507zjdhm.pdfIn PDF document text
    • http://clipshd.design/toripamedusb85b.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/fatikonavori/100_number_chart_printable_blank.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/60003936118.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/30787076415.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/b_r_automation_studio_4._4.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/kemiligexomovosukikabedas.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/how_to_take_apart_a_keurig_k_mini.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/cute_baby_girl_photos_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/craftsman_mini_tiller_cultivator_gas_tank.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/jajaniwulubovoligokaze.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/all_call_recorder_app_free.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_off0000fb2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB2A 5800 bytes
SHA-256: d4da9b5f94dc1ce7f856dbe80b51ef22bf0d51b1f041692ddccd4b5cad88cc0c
font_01_sfnt_off00010ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EF6 10932 bytes
SHA-256: 114f6fdc587fa96367877b45a27fde89e06b841dc0754f34259a331121a1a208

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