Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0bedd63d088e446…

MALICIOUS

PDF

36.6 KB Created: 2021-06-03 10:01:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 211f521ce6ab96656b1d5e6e58075fdd SHA-1: 2558665882575c0dec602e2add33a1b927ad94df SHA-256: f0bedd63d088e4467f05cd39d329175fe81a486f219e94b4c6e64f30b37c7f53
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'game hack' lures. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a social engineering tactic to trick users into visiting malicious sites. While no scripts were explicitly extracted, the presence of embedded URIs and the ML classification suggest malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://netcdn.online/app/406889139/coin-master-jackpot-hack-game-hack PDF link annotation
    • http://perpus.ar-rum.ac.id//repository/hack-a-game_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/daily-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051fb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51FB 25948 bytes
SHA-256: a09866ba4f630d6ad4d161ea25192fd2ab02e71d55c807d42b110e1040afa49f

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