Malicious PDF — malware analysis report

Static analysis result for SHA-256 722aecf08975972c…

MALICIOUS

PDF

34.4 KB Created: 2021-06-20 15:13:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 31a1e9053a0aca51068ae3b4e981256d SHA-1: 1d8c5cc1faa163f08a1320df1985b30bdcc72945 SHA-256: 722aecf08975972c77548571b4e398c19f8b3284f5d3cd1c8288de8afd280090
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-robux-100-working-pastebin-game-hack PDF link annotation
    • https://scraperite.com/images/how-do-you-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://scraperite.com/images/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://scraperite.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/minecraft-images-free_GM479516143.pdfIn PDF document text
    • https://scraperite.com/images/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/rblx-gg-robux-generator-free_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/free-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_off00002f45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F45 21860 bytes
SHA-256: 9568519b0344d1e94dde8286a34c5672ce2729a9c3f0b74e720caed43077200d
font_01_sfnt_off00005f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F21 19740 bytes
SHA-256: 84f603294a13bba507cc30a685dd1688846773ce95df71ecf02a3fd18541ce2d

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