Malicious PDF — malware analysis report

Static analysis result for SHA-256 38adbc119b9ee9b8…

MALICIOUS

PDF

9.5 KB Created: 2021-07-03 15:11:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fdcfdad68907c31b21ecbec43aff5f85 SHA-1: c41a36e5ed184aa8ce7cd9aead7030f1e39c0487 SHA-256: 38adbc119b9ee9b8e6cec3097454d562980b886c90464bd1b2853445e1f10a95
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, with a primary link pointing to a malicious redirector infrastructure. The lure content suggests a scam related to obtaining free game items or hacks, a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent, likely to redirect users to phishing or malware download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9821

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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/how-to-get-minecraft-for-free-on-tablet-game-hack In PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-free-robux-on-safari_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-free-download_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-auto-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-roblox-admin-hacks_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/i-want-to-break-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/any-working-robux-hacks_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-someone-hacked-my-account-and-traded_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untaIn PDF document text

Related samples 8

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