Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17df1ce42608df8…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 04:44:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5f5bb56e8be2c4c6605fb0633d0ee2df SHA-1: 6fd89b23fc21152873a1d4bbeee99d9643089d1a SHA-256: f17df1ce42608df8ad6c771d40c50d102334c10b729d7612446a93ce1c05c61d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a lure related to game hacks and free items, strongly indicating a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs likely lead to malicious sites designed to trick users into downloading further malware or revealing sensitive information.

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.tw/app/431946152/free-roblox-shirts-templates-game-hack PDF link annotation
    • http://www.perpus.stfm.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-no-verification-no-credit-card-no-surveys_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-free-robux-20217_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/rover-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-to-use-impact-remastered-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/bunny-hop-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/minecraft-esp_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-to-hack-roblox-to-get-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/install-free-game-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-to-play-minecraft-for-free_GM479516143.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_off00003202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3202 21872 bytes
SHA-256: 1e0b013ef6c73f42b597c6ede51d72eb4838fd7a88c26632ae2248ac612f1047
font_01_sfnt_off0000621e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621E 19476 bytes
SHA-256: e022dfdfaf5969877872bfc7bdb5743867beaa2f529a87f7ccf368eea5ea03d6

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