Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b05fbc3bd2302b5…

MALICIOUS

PDF

28.9 KB Created: 2021-07-05 16:03:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2ac68eace9261a42c3623d304318ea0f SHA-1: 081a08fec76a08c6d5ba7f3b7093acf5ced7865d SHA-256: 9b05fbc3bd2302b5043dc515c449b04588377130e8d0605679073db0f357efb5
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 3

  • 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.
  • 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/431946152/games-that-give-free-robux-game-hack PDF link annotation
    • http://perpus.stfm.ac.id/repository/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/microsoft-bing-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-building-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/http-rbgenappzoneteamcom-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA6 21400 bytes
SHA-256: f1ea67eac3d8caac3e3b9519e1a65b12c5da3d5f166ed7dc3acc0a0d9a5e5ec5

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