Malicious PDF — malware analysis report

Static analysis result for SHA-256 752c880974aa6342…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 23:07:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c9c2d052873c7e4624fdde7a1028ec76 SHA-1: 4700a2c42e8252d7696a427dc135fee66fdc6931 SHA-256: 752c880974aa6342c5698c22250704ccae0fd3dd754e59af06770a8761f3b603
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.tw/app/479516143/how-to-get-free-minecoins-in-minecraft-game-hack PDF link annotation
    • http://www.stttekstil.ac.id/elib/repository/roblox-bux-hack_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/roblox-free-avaters_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/roblox-when-will-counter-blox-remastered-be-free_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/best-free-non-virus-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/descargar-roblox-hackeado-con-robux-infinitos_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/hacks-for-roblox-2021-june_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/gamingultra-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/faces-on-roblox-that-cost-for-free_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/comment-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-robux-games-that-actually-work_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_off00003321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3321 22420 bytes
SHA-256: dccc75ee60029c36f939792c5d2ed28e443ee8503328f689e7a1f1d8e1b7c04c
font_01_sfnt_off00006502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6502 18164 bytes
SHA-256: 4de9235ac99feec85e66e53b095d1f3cb07926eaf65e104d1d37f162571011a7

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