Malicious PDF — malware analysis report

Static analysis result for SHA-256 422717803156e5fc…

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 11:09:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 30237ad951ee50911e83cf581c0028dc SHA-1: fdc81705acd68456dd06c27d1d2470cf7f434d41 SHA-256: 422717803156e5fcbe9decbadcf2880c4b3c5827e40f5c5c46d367eae842c1c6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to a suspicious URL. This indicates a phishing or scam attempt, likely to lead users to a site that may host further malware or attempt credential theft. The ML classifier strongly flagged this PDF as malicious.

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/431946152/roblox-zone-free-robux-game-hack PDF link annotation
    • http://www.peterbarsony.com/userfiles/files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/pokemon-ultra-brick-bronze-roblox-free-shiny-eevee_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/tap-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-birthday-invitation-free_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/teleport-hack-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/robux-free-com_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/alone-roblox-br-hack_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-do-you-get-robux-for-free-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-no-password-or-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-hack-no-human-verification-pc_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/pokemon-go-free-walk-android_GM1094591345.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-doom-cheats_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_off00003097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3097 22892 bytes
SHA-256: 4131a5613645f391bea4d486a910f4d287cec9d20830812b8248c34ffedf3084
font_01_sfnt_off00006407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6407 18884 bytes
SHA-256: ee7a09e4b3f15cc364cad973da95635941027bcad42042fb3a1cc04549a97256

Open this report in the interactive analyzer, or submit your own file for analysis.