Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a3bda63254415ea…

MALICIOUS

PDF

41.2 KB Created: 2021-05-13 11:55:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 8c43752f117b1c5ab5ce21d5081ec8c0 SHA-1: 251f97e92b51dfad6dfeecb26562a177093a3b89 SHA-256: 2a3bda63254415ea385d143bd9a1df9bbb3028afac0e9fb2327b988e826eb796
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to game hack generators and cheats, a common lure for malicious downloads or phishing. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest the primary goal is to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-cheats-game-hack PDF link annotation
    • https://dirigentigiustizia.it/images/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-by-watching-ads_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
stream_003_off00004883.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4883 24808 bytes
SHA-256: 6db01db702604b915e84a04bda2a1bcf03e574d7e318436dced5142cf90be5ae
font_01_sfnt_off00008023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8023 17712 bytes
SHA-256: 0cf37999a32b0b26e6dcf722a916a3c4a254350d50e55584564eaaa0ec63890c

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