Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2bbef302456a8c6…

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 07:43:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: dfaec3adc83894de28c09faed8637b9f SHA-1: 842336c20d67526a5d02f80815ead9d0b1644703 SHA-256: f2bbef302456a8c683be47dcbb65e4573255e4381c4c9f7918896685c9e59f30
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/coin-master-daily-gift-free-spins-and-coins-link-game-hack PDF link annotation
    • http://perpus.i2s-learning.com//repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/2021-free-spins-coin-master_GM406889139.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
stream_004_off0000523c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x523C 24808 bytes
SHA-256: bc5c9353a5298e9900f5581e936eb17b4033dfaed50f3a0dc4ed66e907f98719
font_01_sfnt_off00008a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A88 18652 bytes
SHA-256: 366d9c9b3cd0388843e044af578ba3ade018a9e96efb4083e0cc5bdd66e71c38

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