Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ae93ce373ead692…

MALICIOUS

PDF

32.2 KB Created: 2021-07-20 15:33:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 05045bd48754497096a3691c35a65806 SHA-1: 69e4dad16487d75ddb500d8445d0e0a99c48dbda SHA-256: 3ae93ce373ead692c860a547a3bdd83cfbe697a68bec3b4363e0d8b4149a4337
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering "game hacks" or "generators," a common lure for malicious downloads or phishing. The ML classifier strongly flagged this PDF as malicious, and the presence of these lures indicates an attempt to trick the user into visiting potentially harmful sites. No scripts were extracted, but the document's structure and embedded links suggest it's designed to facilitate the download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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.tw/app/479516143/classic-minecraft-net-hacks-game-hack PDF link annotation
    • http://lib.perpuspersada.my.id/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.perpuspersada.my.id/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E75 21556 bytes
SHA-256: a294a4ae48664c23ac7d09a3fd842e8341fb089aad802111b82070d4c1289051
font_01_sfnt_off00005d9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9A 17812 bytes
SHA-256: 06eb0692cb0ff670c8084f221f19fc536b6b0c4a84b00058b05a05adc7fae17c

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