Malicious PDF — malware analysis report

Static analysis result for SHA-256 680e6ec0036663f5…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 20:08:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6bd591d5a99a7b4f653fe54cdf64ed9f SHA-1: 77ccf4ade4956e10441ecd0e5ae90a6719ec930f SHA-256: 680e6ec0036663f5ecd9cb5040e5c65240fed8b1be2771c4f2a22ea298dd11fd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, luring users with promises of game hacks and generators. The primary URL, http://netcdn.co/app/431946152/how-to-hack-someone-for-robux-game-hack, is directly associated with a high-severity heuristic for game hack redirects. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.co/app/431946152/how-to-hack-someone-for-robux-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-robux-game-hack-com_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-roblox-iteams_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/mano-county-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-easy-no-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/tiktok-free-ads_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/treelands-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/a-free-and-fast-way-of-getting-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-tix-hack-no-download_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-online-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-smoking-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3043 22156 bytes
SHA-256: 52a56b1cb94140c8308a9fad23e3e67d5de6c221ed515a54801e6b8b7dd5ce43
font_01_sfnt_off0000616f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616F 19308 bytes
SHA-256: 8b1ea5b1390e9b431e5b3580c1d41456e37479bc39f9a799dc3ae6b00c9980d2

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