Malicious PDF — malware analysis report

Static analysis result for SHA-256 787501afd5a44d3e…

MALICIOUS

PDF

44.7 KB Created: 2021-05-16 01:33:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c9a6a8214693fbede1814896f74c7c74 SHA-1: 88738503f78b0807df8e302f60c0783e2df06f31 SHA-256: 787501afd5a44d3e7cc03f8aea860a8288efb86d7e79af5f8e28a765ef78dee1
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 https://netcdn.xyz/app/431946152/free-roblox-characters-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-free-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/daily-spin_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-make-a-minecraft-server-for-free_GM479516143.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_off000048b8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48B8 30628 bytes
SHA-256: 648645b014ee09f0213cf2ad0000c2b54b7f869598f1edc17e2c2e76458d2322
font_01_sfnt_off00008bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BDA 18448 bytes
SHA-256: 0263947262242f4b31913ad3d0f55b2be151042c00d915c510b843208e81fc00