Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3cadbc5b8aaa4cd…

MALICIOUS

PDF

79.1 KB Created: 2021-02-17 16:48:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 9669f71b8edc9667e96c662e360610c8 SHA-1: 5569adaab9614057657c8f1a84c2fdb0754c0a4b SHA-256: c3cadbc5b8aaa4cd8e25e965e36ff3da4713426cd3bd845bb2708eb60c8bec9f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search engine result, aiming to trick users into visiting a malicious site. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the embedded URI is the primary indicator of compromise.

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://baarspo.ru/strik?utm_term=how+much+does+architect+cost+uk PDF link annotation
    • https://cdn.sqhk.co/jadepibake/4uCXyif/extreme_car_driving_racing_3d_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/berirenike/gcxZjBq/puzzle_bobble_3_gratis_online.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/NGhjEpj/forge_ahead_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/loxinesupiva/ZjeulBt/dual_monitor_wallpaper_3840x1080_autumn.pdfIn PDF document text
    • https://cdn.sqhk.co/fafujedajir/bhgeKhc/79782867395.pdfIn PDF document text
    • https://cdn.sqhk.co/xasexuwosul/W5cpWyQ/98986308327.pdfIn PDF document text
    • https://cdn.sqhk.co/xonarewu/itgc7hi/steam_cleaner_rental_walmart.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lotibabakuj/vonidabajilubomelolovufav.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/10408896616.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/23835312110.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/poe_labyrinth_key_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/80388507614.pdfIn PDF document text
    • https://s3.amazonaws.com/xijilesuzuxo/premiere_pro_free_slideshow_template.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/59657239450.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/fesadube.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB00 5040 bytes
SHA-256: a9752a295e28a745c06215d76c009b95bdfc280ff5791989befc746cf94ba65e
font_01_sfnt_off0000fc2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2D 10944 bytes
SHA-256: aa636b589326b1772a348ef41fbe89d01e66180e37e9f6fce523b275d5bd2e69
font_02_sfnt_off0001219a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1219A 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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