Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdabad6ca01cb4e2…

MALICIOUS

PDF

43.5 KB Created: 2021-02-25 00:18:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: cd3e0dad4c5a75400e05e8abbef9accb SHA-1: 55ece8e2476316f77ad41d6ae6622b2dd94327d7 SHA-256: cdabad6ca01cb4e268f24ee1e6afc5edbaef12dfcb5259284d4bdf306a11f716
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, with one heuristic specifically identifying it as a 'PDF link farm' likely intended to direct users to malicious sites. The ClamAV detection and ML classifier further indicate malicious intent. While no scripts were extracted, the presence of embedded URLs and the overall structure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5123

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/award?keyword=which+type+of+control+chart+to+be+used+for+continuous+data+with+subgroup+size+8 PDF link annotation
    • https://cdn.sqhk.co/labifikup/ehiUHgi/talking_babsy_baby_apk.pdfIn PDF document text
    • http://logowafimu.22web.org/9530276635.pdfIn PDF document text
    • https://dowolozudatu.weebly.com/uploads/1/3/4/0/134000293/wakogusa.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/1jiCLHQ/paypal_customer_service_hours_of_operation.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/65851836407.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/zakoturisedoxaze.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/bongo_flava_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/nba_2018_games_free.pdfIn PDF document text

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