Malicious PDF — malware analysis report

Static analysis result for SHA-256 80c7ad03d613eecb…

MALICIOUS

PDF

43.0 KB Created: 2021-05-12 02:06:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 55154f722d1835c52411588400aa8f27 SHA-1: d9c43658629f61f2dc39e5de1d6ad0d56b377286 SHA-256: 80c7ad03d613eecb4f83fa1e0d19ec4e4075d2ba1b2e94e3157af88462ff4bf4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering game hacks and free spins, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous suspicious URLs reinforces this assessment. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site.

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/free-coin-master-spins-no-human-verification-game-hack PDF link annotation
    • http://reisebild.eu/images/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/roblox-ban_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/simplysarc_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-robux-without-survey_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_off00004a9e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A9E 25408 bytes
SHA-256: 8efcf911f26ee9e15d3157e24bcf381f36c90edae568c5a0ff5decf0b4011680
font_01_sfnt_off00008555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8555 18420 bytes
SHA-256: 6292f7fd9c783a708a29fdad24b2019f18fef79b6cfcf8f7eb350847db107d60

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