Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3197c1510f9f3de…

MALICIOUS

PDF

43.7 KB Created: 2021-06-04 04:52:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9f14f9c016456fb80016db76863f4209 SHA-1: 40b75a18085191eb0a55ad788bd94b87a54b0e20 SHA-256: c3197c1510f9f3deb01878014c4a470b223dd94e18dfbb1cf7164a5e9bc5a9cf
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-32-hack-apk-download-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id//repository/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/rbx-hut_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-for-kids_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
stream_004_off00004df9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DF9 24532 bytes
SHA-256: 4512ca2c951d403627a7a267cc0f898069b8b0a7f3ba77a23d4599a93ede5147
font_01_sfnt_off0000864d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x864D 18768 bytes
SHA-256: 3c91c03bd7456db9b9e4fbee6fb625b8bd453fb2d6a3fc152298d538b433522d