Malicious PDF — malware analysis report

Static analysis result for SHA-256 95a68c3d21301279…

MALICIOUS

PDF

44.2 KB Created: 2021-05-16 16:00:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 742d2a6870a1604958455ddcbde97d11 SHA-1: 04e1d1c905bcb34a72efe068ef97029a075171fb SHA-256: 95a68c3d21301279f51d5607aca1e8b3c3988c90476e4225598ce0ca7fc09092
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game hacks and free generators. The document body and heuristics indicate a fake CAPTCHA or human verification prompt is used to trick users into clicking these links. The primary link identified is https://netcdn.xyz/app/406889139/how-to-get-free-coins-and-spins-on-coin-master-game-hack, which likely leads to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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
  • 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/how-to-get-free-coins-and-spins-on-coin-master-game-hack In PDF document text
    • http://arpinoturismo.it/images/withdraw-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-mojang-free_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-2021-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/real-roblox_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_off00004a34.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A34 29064 bytes
SHA-256: 0e9883ad2990aaad879cbf9c0b17784a4dc9ec1fc4b240b11b61687f08729f59
font_01_sfnt_off00008af7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF7 18224 bytes
SHA-256: 1cc62c3a0a16cdc45a8bfa34d4f93d18d6e17ba0d5398a0785b1875f29a446c9

Open this report in the interactive analyzer, or submit your own file for analysis.