Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e4894d65470cd2…

MALICIOUS

PDF

35.7 KB Created: 2021-06-26 04:07:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6dde64ddaa906ecc72fa266ba39ed8c8 SHA-1: 16e29d746fb05b7171705c145d201b4bc2094ad8 SHA-256: 47e4894d65470cd26131a1f72b639649a00072a8d0de448a604275ebe8ce592d
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-hack-the-northern-frontier-roblox-game-hack PDF link annotation
    • https://www.atrax.hr/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/cheat-engine-tricks-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/hack-na-robux-w-roblox_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/infini-speed-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/114-hacks_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/roblox-birthday-card-online-free_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/how-to-earn-robux-for-free-2021_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_off0000328b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x328B 22844 bytes
SHA-256: 752665342afa4210ad62b30cf7176b064bd81fb852189319ff6e442d1172d122
font_01_sfnt_off000065d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D1 19372 bytes
SHA-256: b1416a3a3fb1895207ffd82e7ce4ab0376f057735e968a8c2b67223cf643c59d