Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cdb29cd4b725904…

MALICIOUS

PDF

46.8 KB Created: 2021-06-04 02:31:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 37b9da9b8aded594ce83197c18b3e11b SHA-1: 3797c0a804dd25711b6166dfdf9c41bc97e1273b SHA-256: 6cdb29cd4b725904c34594ee9c2302dfa04611462ca995a71d405d4c05e4b592
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 0.9832

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/431946152/free-robux-picture-game-hack PDF link annotation
    • http://digilib.iailm.ac.id//repository/best-hacked-client_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-home_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/20-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_off000052f5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52F5 27924 bytes
SHA-256: 89cae4476a3ab342a97c980de275b90121f6858df65dd14a23d8f63fa4a27cb3
font_01_sfnt_off0000946a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x946A 18392 bytes
SHA-256: 34b0e3a58c66b2af54b16d5c8d734c4555ce81663a4a6734022a64244545498a

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