Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f0dbd22dfbd0fe2…

MALICIOUS

PDF

32.8 KB Created: 2021-07-03 12:42:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e02293c0228fbce4cb079e4c13becf00 SHA-1: 44c314e468cc266667401003807243bde76bd20a SHA-256: 7f0dbd22dfbd0fe29f53c35cea88936e20eae69584e47b0b9aae93e38cc328fc
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 0.9980

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/479516143/free-minecraft-client-game-hack PDF link annotation
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-free-robux-by-playing-a-game_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-cods-free-roblox-obc-or-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-5-free-robux-doing-nothing_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/script-executor-roblox-download-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/hacking-peoples-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-lua-script-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-hack-retail-tycoon_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-roblox-account-giveaway-with-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-generator_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-money-hack-mad-city-2021-safe_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/youtube-roblox-robux-hacked_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
font_00_sfnt_off00002fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB8 21448 bytes
SHA-256: 7ef8e26f8cfe669b530c9fd4831e6aa2c6503fc530629344f541f2dd925b2323
font_01_sfnt_off00005e96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E96 17928 bytes
SHA-256: 06737be40afdd7807bcb221f1242e15b3899983b357bc9904bb842239db889be

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