Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeba825babdc1751…

MALICIOUS

PDF

35.7 KB Created: 2021-06-29 22:11:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f95011a6350842d226bc079ac4df1f48 SHA-1: 4841fb7cb0bd20343cc18875cb845ed319fe5e42 SHA-256: eeba825babdc1751f76130ea913574ea66ae7622140227deb4f2490bd4ef7541
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/free-robux-live-2021-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id//repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-woodcutter-simulator-cheats_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/robux-website-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/como-utiliar-el-cheat-engine-en-roblox-lumber-ticoon-2_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-get-any-item-off-the-catalogue-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/gameblox-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/xray-hack_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/frre-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-instantly-100-real_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-robux-with-builders-club_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-buy-robux-button-inspect-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/rbxboost-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-website_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/synapse-hack-roblox-download_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_002_off00003107.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3107 23196 bytes
SHA-256: 4253b8ec4cdf7fcbeaa49adb813c56bc878133ee2fa91702cb5c60160f3933c4
font_01_sfnt_off0000656c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656C 19352 bytes
SHA-256: 3a3533b48cd06330159b3f4c28a86be959f914c8db8c1f16cebfe779ec56178d

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