Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd5a6dbe6a8d9923…

MALICIOUS

PDF

2.6 KB Created: 2021-07-04 12:10:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4992a638aa036461457a2efd82996c6d SHA-1: a489426aa5a75f7be3188373c92290320f450cfd SHA-256: cd5a6dbe6a8d9923c422e4364efc1bb4f8450fd1013b81f99753a479f79af7e5
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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 http://netcdn.tw/app/479516143/free-op-minecraft-servers-game-hack PDF link annotation
    • https://deutsch-study.com/image/data/files/is-free-robux-real_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-hack-coin-master-game-ios_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-hack-roblox-pokemon-go_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text