Malicious PDF — malware analysis report

Static analysis result for SHA-256 b295748c651927c4…

MALICIOUS

PDF

33.6 KB Created: 2021-06-30 08:48:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6db289b49386fd38b7f5ee6430428bfe SHA-1: d464b5bb8fb10b5fa416bb5a438abf9eab8508a6 SHA-256: b295748c651927c4ff46480245cb7282d8d78d3508e53e68d1a5e8f2f5279942
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-boat-ride-roblox-funneh-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-ailes-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-obc-hack-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-roblox-http-catchsatoshi-online-robux-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-stuff-on-roblox-that-cost-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-god-mode-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-oprewards_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-roblox-block-piece_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-spins-grom-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/freespins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-script-executor-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-fire-tik-tok-2021_GM835599320.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_off00002f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F83 21008 bytes
SHA-256: 1e1a95e1bb4a68280f53ec060f62e07f86261a9e6f579dad74b0f19a472a4b5b
font_01_sfnt_off00005d74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D74 19352 bytes
SHA-256: 84b593e12b7af5102281669d54681d9f75060618e7869c81062c0569cc392011

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