Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc70ed111cb7cd1b…

MALICIOUS

PDF

33.3 KB Created: 2021-07-03 20:16:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 099bec01e5a82f544a7a04446569eebc SHA-1: 14a4141924a453b86fd9b7464637bda76d97125f SHA-256: fc70ed111cb7cd1bbec75a90ff0e70453cce49f0ebe6ab93914c89b6acff9f9d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for a game hack redirect lure, pointing to a URL associated with free Robux. The document body and embedded URLs reinforce this theme, suggesting a phishing or scam attempt to redirect users to a malicious site. No scripts were extracted, but the overall pattern indicates a social engineering lure.

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/how-to-make-free-robux-game-hack PDF link annotation
    • https://www.sonestad.se/library/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-hack-2021-computer_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-font-free_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/snxw-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-points_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/to-get-free-robux_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_off00002d49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D49 21532 bytes
SHA-256: 75332e8e7d816cde0231f8fe70bbf57626791c6cb1eac70406d70631e06ad841
font_01_sfnt_off00005c7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7E 19244 bytes
SHA-256: 6b22af1083df9260d35a8428a36ac91eb4c7dbc1159f4e02fe88489ba0efcc00

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