Malicious PDF — malware analysis report

Static analysis result for SHA-256 7babc41febe89974…

MALICIOUS

PDF

36.2 KB Created: 2021-06-20 01:48:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2283caf9aeb5a3ef8f2e68b66c728b48 SHA-1: abaf0ead0eb55cf693964560c77ada6bdaff3e20 SHA-256: 7babc41febe89974465dd91ed6ae45e11fd07cf41186e2f28577e403b4f7e8b7
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.co/app/431946152/how-to-get-free-robux-easy-no-download-2021-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/how-to-hack-on-roblox-rap-battles_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-colouring-pages-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/getrobux-info_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/download-roblox-for-free-and-let-me-play_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_off00003297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3297 22680 bytes
SHA-256: 671fa3880be989dc9b8bb865b1f0832db49b1877809bb0b52238cdfd9fd77f7a
font_01_sfnt_off00006562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6562 19980 bytes
SHA-256: 7b04cd49034afa0d570002a6b39fb1a0368e80b4a6e6816fb4889370c7efa1b4

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