Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd12b40b2ce00d8b…

MALICIOUS

PDF

34.4 KB Created: 2021-06-23 15:42:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 79a553fd507f2f0a4f91e5799721f965 SHA-1: 4f3df1f814ab7b6c62010f24468bf75735a101a3 SHA-256: bd12b40b2ce00d8b85128a34ac92c71a7ec4a0b3eb88aad4382c9d0f0edca9e2
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/roblox-hack-human-verification-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-animations_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-just-email-verification-and-done_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/c-design-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-code-for-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/fun-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-walk-through-walls-hack-cc_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/redeem-roblox-cards-free-codes-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/link-for-free-spins-on-coin-master_GM406889139.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_off0000305a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305A 21756 bytes
SHA-256: 6d414340104272e332dc82946c6c7b196492e269741a894fc099604d24c86767
font_01_sfnt_off00006060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6060 19412 bytes
SHA-256: f7fecdb390ab9ce5033ca633a945b712510af374e92d10b0935c62ee5f1fb79b

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